LED Display for gears 1 - 4
AW4/A340 Trans only
Displays 1, 2, 3 or 4 to show what gear your AW4/A340 trans is in
Easy install, $60 USA Shipped
XJ Lowered Shocks-
Bilstein 5100 Series, 2" body, 46mm piston
-Front 33-186504 (old #BE5-6140-T5) Ext-18.46" Collapse-11.77" Travel-6.65"
off of- 1999-2006 Chevy Silverado1500, GMC Sierra 1500
-Rear 33-186566 (old #BE5-A827-T5) Ext-16.46" Collapsed-11.12" Travel-5.0"
off of- ? Ford F250
XJ 4.5"-5.5" Lifted Shocks
Fox Shocks
-Front 980-02-304 29.0"ext/18.0"comp reservoir adjustable rebound $300ea
-Rear 980-02-300 25.0"ext/15.0"comp reservoir non-adjustable $200ea
XJ 4.5"-5.5" Lifted Shocks
Bilstein 5160 Reservoir $160-180ea
-Front 25-187809 28.39"ext/16.44"comp ('97-'06 TJ)
-Rear 25-187816 24.92"ext/14.87"comp (4"lift rear XJ length, with lower mount raised to axle tube +2"up)
Bilstein Shocks Front (post top/bar pin bottom)
TJ 0-2" 5100 24-186810 21.18"ext/13.06"comp
XJ 2-3" 5100 24-185627 22.09"ext/13.58"comp
TJ 3.0" 5100 24-185257 24.00"ext/14.88"comp
XJ 2-3" 5160 25-187670 24.49"ext/14.44"comp
XJ 3.5-4.5" 5100 24-188197 24.61"ext/14.98"comp
TJ 4.0" 5100 24-188180 24.63"ext/14.98"comp
TJ 4.5" LA 5100 24-187190 26.50"ext/16.51"comp
TJ 5-6" LA 5100 24-185943 28.44"ext/16.97"comp
TJ 5-6" 5160 25-187809 28.39"ext/16.44"comp
XJ 5-6" 5100 24-185943 28.44"ext/16.97"comp
Bilstein Shocks Rear (bar pin top/stud bottom)
TJ 0-2" 5100 24-186827 20.08"ext/12.81"comp
XJ 2-3" 5100 24-185639 21.85"ext/13.68"comp
TJ 3.0" 5100 24-185264 23.07"ext/14.63"comp
XJ 3.5-4.5" 5100 24-066868 23.84"ext/14.88"comp
XJ 4.0" 5160 25-187816 24.92"ext/14.87"comp
TJ 4-6" 5160 25-187793 24.92"ext/14.87"comp
TJ 4.0" 5100 33-185934 25.00"ext/15.41"comp
TJ 4-5" LA 5100 33-185514 25.00"ext/15.41"comp
TJ 4.5" LA 5100 33-185934 25.00"ext/15.41"comp
XJ 5-6" 5100 33-151663 25.93"ext/15.91"comp
XJ Upgraded HD Fan Clutch-
Hayden #2737 Amazon $41 free ship have used on 3 different Jeeps
NAPA #272310 $43 quoted by many user, no personal experience, ?loud
Taurus or Volvo 2 Speed Fan Conversion CLICK HERE
Jeep 4.0L Engine Book
4.0L ENGINE SPECS- STOCK
bore - 3.875" stroke - 3.411" 3956cc
Block Deck - 9.453" (9.450" - 9.456")
Rod Length - 6.125" (6.123" - 6.127") 660g #53020126
Piston Pin Height - 1.601" Piston Dish - 13.1-13.5cc Piston Pin 0.931" press fit
Push Rods - 5/16" 9.625" length, press in balls at ends, preload 0.020-0.060"
Lifters- 0.904"
Crank - 3.411" stroke nodular iron 8CW 55lbs
DECK = 9.453" = 6.125" rod + 1.706"(1/2 stroke) + 1.601" pin height + 0.022" deck clearance
Combustion Chamber Volume = 56.7-60cc
Compression Ratio- with stock HG 0.055" = 8.80:1, with HG 0.043" = 8.94:1
Stock deck clearance -0.022" = 4.3cc
Stock Quench = 0.073" = -0.022" + 0.051" head gasket, Quench with 0.043" HG = 0.065"
Valves 8mm/0.3110" stem '87-'97 single groove lock 8* '98-'05 3 groove lock 8*
Intake 1.91"dia ?4.822-4.837', ?4.911" length
Exhaust 1.50"dia 2 piece SS head/steel stem, 4.837-4.852", ?4.939"length
Cam '87-'95 270/270 197/197@0.050" 0.424"/0.424"@1.6 LSA 112* Overlap 46*
Cam '96-'04 253/259 188/190@0.050" 0.408"/0.414"@1.6 LSA 107.5* Overlap 41.6*
Cam '05-'06 264/264 0.397"/0.397"@1.6 LSA 110.5* Overlap 43*
'99+ Cam Retention Plate #05245359 Bolts (2) 00220800 5/16x18x3/4"
Victor Reinz MLS HG #54249 = 0.065" Quench = -0.022" + 0.043" head gasket
Choices of bored 62mm TBs- all re-use your sensors
-Leigh Perf Machine- $100+70core refunded with your return- nice part
-ebay Dead End Customs $130+10ship- look good, no core or return required
-Jeepers and Creepers- $175+?ship- new casting, reuse your shaft and
linkage, +/- reviews, ? got better, cannibalize your stock TB can't re-sell
-ebay e.performance.parts $200+13ship- no core or return, flush shaft, nice part
-BBK- $250+FS- new casting, very nice, you get what you bay for
-Painless 65300- $400- 62mm, beautiful new casting, $$$$
-F+B- $400- make 68 and 70mm, will need to bore adapter plate, best but bit overkill
*your stock TB is worth ?$25-50 to sell on ebay
-XJ Cherokee and ZJ Grand Cherokee 4.0L engine blocks interchange.
-2000+ TJ Wrangler and WJ Grand Cherokee 4.0L engine blocks interchange.
-XJ/ZJ blocks and 2000+ TJ/WJ blocks do not interchange without significant modifications. (1991 to 1995 YJ and 1997-1999 4.0L TJ Wrangler blocks will interchange in XJ/ZJ and visa-versa)
Block Casting Numbers
Year............Casting No
1987-90......53005535 (8933002665)
1991-95......53008405
1996-98......53020569
1999-04......53010449
-TJ/WJ 4.0L Engine blocks underwent clean sheet design changes effective in the 1999 WJ Grand and 2000 TJ Wrangler. These blocks are not interchangeable with XJ/ZJ engine blocks. The reason is motor mount bolt holes and belt driven accessory mounting bolt holes are in different locations, or not present at all, TJ/WJ vs. XJ/ZJ.
XJ: "Regular" (not Grand) Cherokees 84-01
ZJ: Grand Cherokee 93-98 (Gen1)
WJ: Grand Cherokee 99-04 (Gen2)
YJ: Wrangler 87-95 (Gen1)
TJ: Wrangler 97-06 (Gen2)
HEADS-
2685 '87-'90
7120 '91-'95
0630 '96-'99 new style valve cover
0331 '00-'01 Crack prone b/w 3 and 4 valve springs, coil mounting bosses, smallest exhaust ports
0331 '02-05 TUPY from Brazil seen thru oil fill cap stronger, no crack issues
STROKER PARTS
Silvolite 2229 Keith Black CAST 1.581"pin height Dish 11-11.5cc, if 15cc=9.6:1, if 23cc=8.8:1, Max 24cc(0.190"dish) Use with 232 crank
Silvolite 3241hc(metric)/3242hc(std) KB Hypereutetic pin height=1.592" 13.7c(13-14.1cc)
Speed Pro 677CP CAST 1.585"pin height 13.4-14cc 9.25:1 with 0.043"HG
Speed Pro H802CP(metric)/H825CP(std) Hypereutetic 1.592"pin height 13.4-15.5cc 9.25:1 with 0.043"HG
KB 944 Forged 1.353"pin height dish 21.73cc 9.1:1
KB 945 Forged 1.353"pin height dish 10.38cc 10.2:1
Bulltear Forged 1.380"pin height dish 28cc **gives 0.000" deck 3.905"bore 3.895"stroke 0.043"HG Quench=0.043" 58cchead=9.06:1CR 60cchead=8.89:1CR
258 Crank - 3.895" stroke, '72-'80 12CW, '81-'90 4CW- 20 lbs lighter, '71-'86 64mm nose, '87-'90 54mm nose, these Newest with serpentine belt has correct nose to drop in 4.0(#53005535)
04863827 '96 Viper double roller timing chain uses cam retainer plate, Cloyes C3093, ? fit 4.0?
ACTUAL DYNO 4.6L- 195rwhp/245rwtq 268crankHP/326crankTQ
if add 6 pounds boost +37.5% = 268rwhp/336rwtq 357crankHP/451crankTQ
if add 8 pounds boost +50% = 296rwhp/365rwtq 390crankHP/493crankTQ
232 Crank - 3.500" stroke #3214722 '72-'79 8CW 64mm nose '72+ rear flange OK with auto trans
Eagle Rod- forged 600+hp 6.150" 0.912" full floating pin
'MINI-STROKER'
-232 crank + 4.0Lrod 6.125" + Silvolite(cast)1.581" pin height = +0.003"deck + 0.043HG = 0.040" Quench
dish 15cc 9.6:1 + 231Cam = 262hp/302tq
dish 23cc 8.8:1 + 115Cam = 241hp/294tq
NO dish 10.0:1 + 235Cam = 270hp/306tq
3.500" x 3.935"bore = 4185cc 4.19L + additional 106cc (+228cc over stock)
3.411" x 3.935"bore = 4078cc 4.08L + 122cc
3.411" x 3.875"bore = 3956cc 3.96L Stock
-232 crank + 4.0L rod 6.125" + RaceTec Forged 1.580" pin height = +0.002"deck + 0.043HG = 0.039" Quench
-232 crank + Eagle Rod 6.150" + RaceTec Forged 1.555" pin height = +0.002"deck + 0.043HG = 0.039" Quench
DREAM 4.0L FORGED BUILD
Crank - stock 4.0L 3.411" + APR main studs
Rods - Scat 4340 Forged rods 6.125" Upgrade ARP 2000 series bolts good to 550+hp
or stock 4.0L 6.125" + APR 8740 #146-6001 3/8" rod bolts good to 500hp
Block Deck - stock 9.453" + ARP head studs
Bore - +0.060" stock 3.875" to 3.935" 3956cc to 4078cc +122cc
HEAD - ported - open combustion chamber to 3.935" bore to Unshroud the Valves 59cc
- Big Valve - 2.02" Intake 1.60-1.62" Exhaust SS swirl back cut
-combustion chamber - stock 56.7cc if add 0 = 9.23:1 if add 4.3cc = 9.03:1
-springs- Lunati 74814 beehive 80-100 seat pressure, 225 max pressure at desired lift
Pistons - CUSTOM forged RaceTec Pistons from 505 or Mike Panetta at Diamond Pistons
14cc dish (stock dish 10-13.1cc) (5cc=0.5CR)
CUSTOM Pin Height 1.625" (stock 1.601") to make 0.00" Deck clearance
DECK Clearance = 0.000" QUENCH = 0.043"
Increase piston crown height 0.024", 'lose 4.3cc' so can add 4.3cc to dish or combustion chamber
Increases Displacement 3956cc (241.41CI) to 4078cc (248.86CI) = 3% increase power
Increases CR 0.5:1 = 1.5% increase power
EXPECT 240-250 CRANK HP with cam 113*LSA 204/216*@0.050" .488/.518"lift 1.7:1
with 10 pounds BOOST +62.7% --406 crank HP -29% drivetrain = 288rwhp
CAMS-(all specs with 1.6:1 rockers)
Stock Cams
'87-'95 270/270 197/197@0.050" 0.424"/0.424" LSA 112 Overlap 46
'96-'04 253/259 188/190@0.050" 0.408"/0.414" LSA 107.5 Overlap 41.6
'05-'06 264/264 195/195@0.050" 0.397"/0.397" LSA 110.5 Overlap 43
Crower Cams
44242 184/192@0.050" 0.411"/0.413" LSA 110*
44243 194/204@0.050" 0.437"/0.445" LSA 112*
44902 194/202@0.050" 0.432"/0.453" LSA 112* 700-3800rpm
44915 208/208@0.050" 0.448"/0.448" LSA 112* 1800-4200 redline-4750
44310 210/218@0.050" 0.448"/0.453" LSA 112*
44245 212/218@0.050" 0.462"/0.475" LSA 112*
44245 218/222@0.050" 0.450"/0.501" LSA 112* 2000-5000 redline-5500
Comp Cams
68-115-4 240/248 192/200@0.050" 0.416"/0.416" LSA 108 Overlap 28 **
68-200-4 252/252 206/206@0.050" 0.433"/0.433" LSA 110 Overlap 32
68-201-4 260/268 212/212@0.050" 0.447"/0.476" LSA 110 Overlap 40
68-231-4 250/258 206/214@0.050" 0.462"/0.485" LSA 111 Overlap 32 **
68-232-4 250/256 206/214@0.050" 0.460"/0.476" LSA 113 Overlap 27 **
68-235-4 254/262 210/218@0.050" 0.477"/0.493" LSA 111 Overlap 36 **
68-239-4 262/270 218/226@0.050" 0.493"/0.512" LSA 111 Overlap 44
Hesco
H-264 264/264 214/214@0.050" 0.470"/0.470" LSA 114 Overlap 36
RVOB6 264/264 214/214@0.050" 0.470"/0.470" LSA 110 Overlap 44
H-274 274/274 224/224@0.050" 0.480"/0.480" LSA 114 Overlap 46
ISKY
133125/26 202/208@0.050" 0.450"/0.465" LSA110 Overlap 36 -quiet, gentle ramps
Lunati
63500 250/256 208/213@0.050" 0.484"/0.484" LSA 112 Overlap 29
63501 213/220@0.050" 0.484"/0.507" LSA 112 Overlap 35
Comp Cam/Magnum Powers
5.0L SC 256/260 212/216@0.050" 0.488"/0.498" LSA 114
MOPAR
-28 240/240 199/199@0.050" 0.430"/0.430" LSA 108 Overlap 24 to 4700rpm -OK with stock valve springs '83-'00 spring P4529214 retainer P454292216
-29 248/248 202/202@0.050" 0.440"/0.440" LSA 108 Overlap 32 to 4800rpm -OK with stock valve springs '90-'00 spring P4529214 retainer P454292216
-30 256/256 205/205@0.050" 0.450"/0.450" LSA 108 Overlap 40 to 4900rpm -OK with stock valve springs '01only spring P5249464 retainer P4452032
JONES CAMS *can grind profiles for '99+ cam with cam retainer plate*
Profile H65295 260 204@0.050" 1.6:1-0.472" 1.7:1-0.502"
Profile H66299 264 208@0.050" 1.6:1-0.478" 1.7:1-0.508"
Profile H67300 268 210@0.050" 1.6:1-0.480" 1.7:1-0.510"
Profile H68305 272 216@0.050" 1.6:1-0.488" 1.7:1-0.519"
Profile H69310 276 220@0.050" 1.6:1-0.496" 1.7:1-0.527"
'Stroker Cam' 260/264 204/208@0.050" 1.6:1-0.472"/0.478" 1.7:1-0.502"/0.508"
'Boosted Cam' 260/272 204/216@0.050" 1.6:1-0.472"/0.488" 1.7:1-0.502"/0.519" LSA 113 Overlap 40
#H65295-68305 Rockers 1.7:1 BC 1.380" L/C 113*, Intake C/L 109*, Exhaust C/L 117*
0.050" at lifter- Int opens 07*ATDC, Int closes 31*ABC, Exh opens 45*BBC, Exh closes 09*BTDC
duration 260*/272*, at 0.050" 204*/216*, gross cam lift Int 0.295", Ex 0.305", net lift 0.502"/0.519"
505 Performance
208/212 0.427"/0.438" LSA 114
211/217 0.480"/0.480" LSA 114
214/218 0.490"/0.483" LSA 114
217/223 0.484"/0.494" LSA 114
Hydraulic Roller ? 207/216 0.484"/0.484" LSA 114 1200-5400 26-46 HP gain!
Hydraulic Roller ? 210/216 0.451"/0.477" LSA 114 1200-5200
NITRITED Cam- eliminates 95% of all flat tapet cam failures.
VALVE SPRINGS **DO NOT EXCEED 225-240 lbs pressure to prevent cam lobe flattening**
Stock 60-71-80-89 lbs@1.64" varies by years bind at 1.140" safe to 0.440"lift 295-327 lbs/in
184-190-218 lbs@1.206"(0.434"lift) varies by years 209-226 lbs@1.190"(0.450"lift)
2001 Stock ?conical bind at 1.121" safe to 0.459"lift
Mopar Perf #5249464 270-271 lbs/in safe to 0.525" lift 1.418"OD install at 1.64" 90-113 lbs@1.64" 200-232 lbs@1.202-1.205"(0.438"lift) 210lbs@1.190"(0.450"lift)
220-246lbs@1.140"(0.500"lift)PERFECT to SLIGHTLY TOO HEAVY This spring is NO longer available
Scorpion 1213 conical Ford 4.6/5.4L OHC 191 lbs/in bind at 0.600" $12.49ea.
80 lbs@1.64" 166 lbs@1.190"(0.450"lift) 175 lbs@1.140"(0.500"lift) ? TOO SOFT
*Scorpion 1214 conical Ford 4.6/5.4L OHC 275 lbs/in bind at 0.600" $12.49ea.
100 lbs@1.64" 224 lbs@1.190"(0.450"lift) 237 lbs@1.140"(0.500"lift) PERFECT UPRADE nearly same as MP Springs
if install at 1.70" 83.5 lbs@1.70" 208 lbs@1.250"(0.450") 220.5 lbs@1.200"(0.500") PERFECT STOCK specs
Lunati 74813- ?same as Scorpion 1213, same specs $9.88ea
*Lunati 74814- ?same as Scorpion 1214, same specs $9.88ea Ford 3V head
Lunati 74833 300 lbs/in
PAC 1233 114 lbs@1.64" 300 lbs/in
PAC 1213 and ?1214 also same as Scorpion $11.91ea
CompCams 26113 same specs as Scorpion 1213 $15.00+
CompCams 26125 258 lbs/in 120 lbs@1.640" 236 lbs@1.190"(0.450"lift) TOO MUCH
if install at 1.70" 105 lbs@1.700" 221 lbs@1.250"(0.450"lift) 236 lbs@1.200"(0.500"lift) GOOD
if install at 1.75" 92 lbs@1.700" 208 lbs@1.250"(0.450"lift) 223 lbs@1.200"(0.500"lift) GOOD
CompCams 26981 347 lbs/in 110lbs@1.70" 249lbs@0.400" 266lbs@0.450" 283lbs@0.500"
CompCams 26995 Beehive 280 lbs/in 137 lbs@1.70" 130 lbs@1.75" 280 lbs@0.478"lift TOO MUCH
CompCams 926 (comes with 'cam kit') 415lb/in 109lbs@1.80" 317lbs@1.30" WAY TOO MUCH
CompCams 26975 365lb/in 103lbs@1.780" 325lbs@1.160"(0.620"lift) bind at 1.10" 1.320"OD/0.920"ID
Crower 68193 230 lbs/in 103 lbs@1.80" installed height, 1.30"(0.500')=218lbs
125 lbs@1.70" installed height, 220 lbs@0.450"lift $14ea $230/16
Edelbrock 5814 357 lbs/in 110 lbs@1.700" 270lbs@1.250"(0.450"lift) TOO MUCH
-this is the spring that comes with the Edelbrock Alumn 4.0L head Jegs $35/16
Edelbrock 5813 252 lbs/in 80lbs@1.70" 193lbs@1.250"(0.450"lift) LITTLE LIGHT
if install at 1.640" 95@1.640" 208lbs@1.190"(0.450"lift) PERFECT UPGRADE same as MP spring Jegs $34/16
if install at 1.700" 110@1.700" 223lbs@1.250(0.450"lift) Better choice for Edelbrock Alumn Head
Australian Ebay Spring 354 lbs/in 100lbs@1.65" 259lbs@1.20"(0.450" lift) TOO MUCH
Engle Cams #593 220lb/in 1.440"OD 1.075"ID install at 1.80"=95psi 0.450" lift=190psi
if install at 1.65"=125psi 0.450"=215psi
Engle Cams #696/697 250lb/in 1.380"OD 1.055"ID 0.805"InnerID 1.65"=105psi 0.450" lift=220psi
Engle Cams #6612/6602 280lb/in 1.250"OD 0.680"ID 1.65"=110psi 0.450" lift=235psi
*HEMI Retainer- Mopar #53021676AB 5.7 or 6.1 hemi 8mm 8* can use stock locks $2.75ea or less
Crower Retainer #87035 $64.95/16 $4.61ea, 'T' titanium $24.01ea, 5.7-6.1 hemi, use stock locks, valves, valve seals, + hemi behive springs and dampers
VALVES
Mopar P5249877 intake 1.97" SS swirl polish 4.91" 1 groove 8mm $18.70ea
*Mopar P5249878 intake 2.02"/51.308mm SS 1 piece swirl polish 4.91"/124.714mm 1 groove 8mm/0.315" 116grams 3.9/5.2/5.9 Magnum $18.70ea(monicattichrysler.com)
*Mopar P5249876 exhaust 1.62"/41.148mm SS 1 piece swirl polish 4.93"/125.222mm 1 groove 8mm/0.315" 90grams 3.6/5.2/5.9 Magnum $16.39ea
*Mopar 53021676AB 8mm 8* Retainers 5.7/6.1 Hemi, fits Lunati 74814 Conical springs, can use stock '98+ 3 groove locks
*Mopar Performance 4529218 Locks 8mm 8* Single groove('87-'97), $11.90/16, ('98+ are 3 groove)
Fun Comparison- DelWest NASCAR Titanium Valves 6" 1 groove 2.20"=82grams 1.615"=68grams
Mopar P4529246 intake/exhaust manifold gasket 4.0L
Mopar 05037382AD Hemi 6.1L Springs 'Large' behive Intake $7.49ea ?300+lbs/in
Mopar 05037477AD Hemi 6.1L Springs 'Large' behive Exhaust 1.800" install height ?specs exhaust spring stiffer than intake
Mopar P4529217 Large Retainers 8* 8mm Stock 2001 conical springs 4.0L and ?large hemi $6.80ea
Mopar P4529214 production springs cylindrical 0.177"wire 1.640" install height max lift 0.430" use P45429216 retainer
Mopar P4529215 production springs conical 1.310"OD 0.875"ID 1.640" install height max lift 0.430" use P45429216 retainer
Mopar Performance 5249464 springs NO LONGER AVAILABLE
Mopar Performance 4452032 retainers 8*
Mopar Performance 4529218 Locks 8mm 8* Single groove locks ('87-'97), $11.90/16, ('98+ valves are 3 groove)
RockAuto- Sealed Power VK216 single groove locks for '87-'97 $0.36ea
RockAuto- Mopar 53010515AA 8mm 8* Locks 3 groove locks for '98+ valves $1.38ea
SPARK PLUGS-
"lower is colder, except NGK"
Champion RC12LYC (stock) RC12YC has 0.23" less projected tip
Champion RC9YC (colder)
Champion RC9MCC in Europe for propane/LPG conversion Jeeps, more projected tip than YC, closer to stock, available amazon and RaceMart.com (thanks Paul)
Champion Tip Projections- LYC-5.1, MCC-3.0, JC-1.5
NGK FR5-1 #7252 stock
NGK ZFR6F-11 #4291 V-Power Copper (More Extended tip than BKR7)
NGK BKR6E-11 #2756
NGK BKR7E #4644 (colder) BKR7E-E #4776 resistor type
NGK ZFR7F-11 #6855, ZFR7F #5913 (colder)
NGK ZFR6FIX-11 Iridium # 6441
note- NGK: '-11'= 1.1mm(0.044")plug gap, others 0.8-0.9mm(0.032-0.036")gap
LIFTERS
Johnson-Hylift from Topline #2011, same as Crower in past, 0.944-0.945"(same as OEM) Made in USA
800-441-1400 'Paul' ext 609, $4.29ea + S/H x24=$114.96 shipped
ROLLER ROCKERS
Harland Sharp 1.6:1 S40196 $350 Jegs 440-238-3260 Steve@Harland Sharp
1.6:1 non-adjustable fit under stock valve cover (no spacer needed)
1.7:1 non-adjustable Custom built MUST check pushrod to head clearance $475
"QUENCH" stock deck 9.453"
crank stroke/2 rod piston pin total deck clearance QUENCH(0.043"/0.055"HG)
3.411" 1.706" 6.125" 1.601" 9.432" -0.021" 0.064"/0.076" -Stock
3.411" 1.706" 6.125" 1.623" 9.454" +0.001" 0.042"/0.054" -Taller piston pin 1.623"
3.411" 1.706" 6.125" 1.625" 9.456" +0.003" 0.040"/0.052" -Taller piston pin 1.625"
3.411" 1.706" 6.150" 1.601" 9.457" +0.004" 0.039"/0.051" -Eagle Longer Rod 6.150"
3.500" 1.750" 6.125" 1.581" 9.456" +0.003" 0.040"/0.052" -Mini Stroker, piston#3241
3.500" 1.750" 6.125" 1.585" 9.460" +0.007" 0.036"/0.048" -Mini Stroker, piston#677
3.500" 1.750" 6.125" 1.592" 9.467" +0.014" 0.029"/0.041" -Mini Stroker, piston#802
3.500" 1.750" 6.150" 1.555" 9.456" +0.002" 0.039"/0.051" -Mini Stroker, Longer Eagle Rod, Custom forged RaceTec Pistons 0.912" full floating pin
3.895" 1.948" 6.125" 1.353" 9.427" -0.026" 0.069"/0.081" -stroker KB 944/945 piston
3.895" 1.948" 6.125" 1.380" 9.454" 0.000" 0.044"/0.055" -stroker BullTear Piston with Taller pin height
3.895" 1.948" 6.125" 1.381" 9.454" +0.001" 0.042"/0.054" -stroker Taller piston pin
3.895" 1.948" 6.125" 1.383" 9.456" +0.003" 0.040"/0.052" -stroker Taller piston pin
3.895" 1.948" 6.125" 1.385" 9.458" +0.005" 0.038"/0.050" -stroker Taller piston pin
3.895" 1.948" 6.150" 1.353" 9.451" -0.002" 0.045"/0.057" -stroker Longer Rod 6.150"
Best Combination- using MLS 0.043" head gasket
-Stock 4.0L Crank 3.411"+ Stock Rods + Custom Forged Pistons with 1.625" press pin location 14cc dish
-232 Crank 3.500" MiniStroker + Stock/Scat forged Rods + Custom Forged Pistons with 1.581" press pin location 16cc dish
-232 Crank 3.500" MiniStroker + Eagle 6.150" Rods + Custom Forged Pistons with 1.555" floating pin location 0.912" pin 16cc dish
-258 Crank 3.895" Stroker + Stock Rods/Scat Forged Rods + Custom Forged Pistons with 1.380" pin location 15-26cc dish (BullTear piston)
Stock Rods good to 400HP
Stock Rods with ARP rod bolts, shot peened, polished edge, Good to 450HP
Scat Forged Rods good to 500-550HP
Scat Forged Rods with upgraded ARP 2000 bolts good to 550+HP
Eagle Forged H Rods good 600+
VALVE SPRINGS ON BOOSTED ENGINE
Ford Lightning Truck 4.6, 5.4 and 5.4 SC engines all use the same stock valve springs with 70 pounds seat pressure. Manifold boost pressure acts like an air spring in the opposite direction trying to 'open' the valve and the valve spring is trying to 'close' the valve. Net spring pressure is valve spring pressure minus boost pressure.
Most interesting info of testing and findings-
-stock N/A 70 pound closing valve spring pressure "adequate according to Ford engineers"
-testing with stock springs and 18 psi air pressure to the intake port and the valve starts to open and leak, 70 - 18 = 52 pounds of pressure trying to close the valve which is obviously too low, even the Ford engineers spec'ed 70 pounds N/A.
-stock lightning with 12 pounds boost, 70 - 12 = 58 pounds and valve float at 4700rpm, good for limiting output and warranty claims
-upped to 18 pounds boost, 70 - 18 = 52 pounds pressure trying to close the valves, well below the Ford engineer's spec of 70 pounds
When changed to 80 pound seat valve springs, 80 - 15-18boost = 62-65 pound pressure, 4800rpm valve float and still below the Ford engineer's spec of 70 pounds
When changed to 90 pound springs, 90 - 15-18boost = 72-75 pounds and valve float at 5100rpm, barely above minimum spec of 70
When changed to 105 pound springs, 105- 15-18boost = 87-90 pounds and 5400rpm valve float, Now we are talking!
When lowered boost 2psi, 105 - 13-16boost = 89-92 pounds and 5800rpm, Finally good results!
-and all this is with a mild more aggressive lift cam which will require more spring pressure to control the valve
-120-125 pound springs allow even more boost and aggressive cams before getting seat leak and valve float
So what does all this mean? See a pattern
-N/A can get by with stock 70 pound seat pressure valve springs
-stock Lightning with stock 70 pound springs has its rpm and output severely limited
-increased boost and mild cams requires an additional 20-30 pound valve seat pressure to control valve float and motion
-even more boost and more aggressive cams will require an additional 40-50 valve seat pressure to control valve float and motion
BOOST AND MILD CAM NEED MORE THAN STOCK VALVE SPRING PRESSURE
OTHER ENGINES
BBC 548cid Edelbrock/Mussi CNC heads 24* 119cc 2.3"Intake I-375cfm/E-248@0.600" 9.2:1 Super Victor II CNC Intake 2.375" headers Procharger F-2 18 psi Boost blow thru carb with electric power valve enricher 1530-1563HP@7350, 1144TQ@7500 24* timing, More Power with Less Boost vs. previous heads
SBC 383CID BluePrint Crate BP38316CT1 BPE Alumn heads 2.02/1.60 195cc/75cc 64cc combustion chamber 8.5:1 224*/236*@0.050" 0.536"/0.555" 750cfm Holley Carb 30 month/50k warranty 427HP@5500rpm/459TQ@4300rpm
+Procharger SC No intercooler 118octane 26* timing 8 pounds boost 645HP@5500/624TQ@4900
+10 pounds boost 677HP/655TQ, 11.5 pounds boost 701HP/685TQ
-> 8 pounds of boost = 50% increase in power just as predicted.
AW-4 Transmission
Aisin-Warner Shift Solenoids Sequence
1st - #1 On, #2 Off
2nd - #1 On, #2 On
3rd - #1 Off, #2 On
4th - #1 Off, #2 Off
Lifting Cherokee XJ
After having done it all, here are some good suggestions
Lifting really depends on your intended USE and TIRE SIZE
Don't cheap out and do an inferior lift because you don't have the money, SAVE UP
27-28" Stock tires, sagged out springs might require some minor trimming
29-30" tires- budget lift OK with 1.5"-2" spacers and add-a-leaf
31" tires- 3" lift short arms WITH drop brackets for LCA, SYE
32-33" tires- 4.5" LONG arms a must for ride quality, trim stock fender flares, SYE, rear shackle relocation brackets + extended shackles
35" tires- 5-5.5" LONG arms, SYE, rear shackle relocation and Flares- Bushwacker, Napier or Notch
Jeep Cherokee XJ Control Arm Length
Lift........Lower Control Arms...Upper Control Arms
................Decimal..Fraction...Decimal..Fraction
Stock........15.75.......15 ¾........15.00.......15
2”.............15.92.......16............14.88.... ...15
3”.............16.09.......16............14.92.... ...15
4”.............16.33.......16 3/8......15.03.......15
4.5”..........16.47.......16 ½........15.11.......15
5”.............16.62.......16 5/8......15.21.......15 ¼
6”.............16.97.......17............15.44.... ...15 ½
7”.............17.36.......17 3/8......15.74.......15 ¾
8”.............17.81.......17 ¾........16.09.......16
9”.............18.30.......18 ¼........16.50.......16 ½
10”...........18.82.......18 ¾........16.96.......17
Cherokee XJ Driveshaft Collapsed Length
XJ 89/01 4.0 Automatic front 30.660" part # 53005542
XJ 89/01 4.0 Manual front 29.250" part # 53005543
Rough Country #5076-1 rear 31.75" DS for SYE 35.75"extended
Overhead Console Wiring
VT/BR - CCD Bus (+) mileage and gas consumption
WT/BL - CCD Bus (-) MUST TWIST CCD Bus (+ and -) for proper readings
Y - door jam switch
VT/LG - Ambient Temp sensor signal
BK/LB - Ambient Temp sensor return/ground
BK - Ground (-) for lights and Compass
DB/GY - Fused Bat (+)
PK - Fused Bat (+) Compass and Lights
BK/LG - Compass ground (-)
WH/BK - Compass fused ign (+) ST-Run
BK/TN - ground for trip
BL/WH - power for trip fused Bat (+)
Grand Cherokee Plug- || 123456 ||
1- ground
2- positive 12v+
3- Temp neg
4- Temp sensor Pos + signal
5- CCD (-)
6- CCD (+)
Compass Calibration
Hold US/M button then press STEP button until see 'CAL' displayed
release both buttons and do 3 - 360* turns
done
TIRE SIZE and GEAR RATIO
SPEEDO GEAR FOR TIRE SIZE AND AXLE RATIO (2 different recommendations)
Classic Carb Size FormulaCarb CFM = CID x RPM x VE / 3,456
where VE = 70% N/A stock motor, 85-90% well tuned performance motor, 95% full-race engine
The problem is that this formula results in a carb rating 'smaller' than what works best in the 'real world'
Why? 4-bbl carbs are rated at 1.5 in-hg and this is a performance robbing restriction on performance engines
Less vacuum means less restriction, 0.8-1.0 in-hg is best for performance engines
A better 'real world' formula assuming about 0.9 in-hg
Carb CFM = CID x rpm x VE / 3,456 all divided by square root of 0.9/1.5 (=0.775)
or Real World Carb CFM = classic carb size formula / 0.775
example-
350 CID, 85%VE, 6500rpm
Classic Carb CFM = 350 x 6500 x 0.85 / 3,456 = 559.5 CFM
Real World Carb CFM = 559.5 / 0.775 = 722 CFM
Throttle Body Size
-want less than 1 inch vacuum under the TB at WOT, fit the biggest available for your application
AIR FUEL RATIOS
-best power at 12.5 with sufficient octane to control detonation and without retarding timing too much
12.5-13.5 mild naturally aspirated
12.0-12.7 wild naturally aspirated
11.5-12.5 mild boost with intake air temps- less than 150*
11.0-11.7 heavy boost with intake air temps- less than 150*
11.0-11.5 boost and intake air temps- greater than 150*
Stoichiometric Values for different Fuels
-gasoline 14.7:1
-E10 14.08:1
-E15 13.79:1
Maximum Power- gasoline- 12.5:1, E10- 12.0:1
FUEL PUMPS
-All at 12v, if old wire, poor battery or alternator, actual voltage and fuel pump output may be lower
-LPH = GPH x 3.785, 1 Gallon Gas = 6.5lbs
-?stock 110LPH = 29GPH at free flow, 23GPH at 50psi =150 lbs/hr
Max HP- N/A .50BSFC = 300HP, Boost .55BSFC = 275HP (50%safety-190HP)
-?stock 130LPH Walbro GCA733 = 27GPH at 50psi = 175 lbs/hr
Max HP- N/A .5SFC = 350HP, Boost 0.55BSFC = 315HP (50% safety-210HP)
-upgrade 190LPH = 50GPH at free flow, 42GPH at 43.5psi, 36-38GPH at 50psi = 234-247lbs/hr
Max HP- N/A .50BSFC = 475-500HP, Boost .55BSFC = 425-450HP (50% safety- 285HP)
-upgrade 255LPH Walbro = 67GPH at Free flow, 53GPH at 43.5psi, 47-55GPH at 50psi = 305-357lbs/hr
Max HP- N/A .50BSFC = 650-710HP, Boost .55BSFC = 590-650HP (50% safety- 400HP)
-stock in-tank fuel pressure regulator BWD 23079
-upgrade 300LPH Bosch 044 = 79GPH
Max HP- N/A ,50BSFC = 1030HP, boost .55BSFC = 936HP
Diesel Conversions-
mercedesdiesel4x4.com
bruiserconversions.com
jdjeeps.com
cotybuilt.com
Jeep 4.0L Supercharger/Turbocharger Kits-
-Accurate Power-no longer made, side mount ?M62
-Adventure Innovations- ?if still made, Vortech SC
-Avenger- top mount with intercooler
-Banks Turbo- only '05-'06 TJ
-Fast Forward- ?if made yet, new cast intake manifold, M90
-Hesco- ?if still available
-Kenne Bell- no longer made, top mount SC
-M62 Supercharger Kit- M62 XJ Side mount, TJ Top mount
-Magnum Powers- M90 mounts in place of A/C, intercooler, $4995
-Momentum Motorsports- M90 mounts in place of A/C, no tune
-Rick Rimmer- M62
-Ripp- Vortech TJ kit
-Sprintex- no longer produced
-505- ? turbo and SC kits
HOW TO WIRE LED SHIFT INDICATOR--TCU plug-
Left side bottom looking at plug
-Red/wh or Orange/wh #13 = Solenoid B = YELLOW WIRE
-White = Solenoid A #12 = BLUE WIRE
Right side bottom looking at plug
-Blue/wh #26 = 12v+ = RED WIRE
-Black/tan #24 = Neg = BLACK WIRE (NOTE: third wire UP from bottom of plug)
