Work hard to back up. This sucks.

88workcar · 11-20-2003, 06:42 AM

My 11.60 car let me down last night. 12.74 @ 107 was my best pass. The car feels like it is flying, but has no bottom end. I ran on radials just to see the 114- 116 mph that I should be seeing now, with the new cam and elec water pump, but it would not turn the numbers. I almost think it is the computer. Why would a engine rap up like crazy, then not run strong while under way?

Dark_5.0 · 11-20-2003, 10:18 AM

Looks like you lost about 90-100 HP somewhere.

Anytime a motor seems to be running fine but not fast its almost always the timing.

My brothers camaro went from a 14.10 to a 15.00 after a head and cam change. He had a bad distributor that had his timing all fucked up. After he fixed that he went from 15.00 to a mid 13.

QuantumMotorsports · 11-20-2003, 11:58 AM

Since you've had a timing problem in the past, I wouldn't be surprised if that's what it was. Either that, or the cam you put in isn't dialed in correctly. If you get no low end at all that would mean that maybe the cam timing is retarded a bit much, which might cause your ignition timing to need to be way too high for some reason. I really don't know, just a guess, maybe other people know more. Or you might have problems with your cam not fitting with your combo well. Just out of curiousity what tranny and rear gear setup do you have?

88workcar · 11-21-2003, 06:21 AM

3550 tremac, and 4.30s. I have a new SD computer on the way. Also I will check the cam timing.

88workcar · 11-26-2003, 07:08 AM

Good news, We degreed the cam last night. It suppose to be in at 110 - 112 and it is acually at 117. I will get a multi index timing set today.

11-20-2003, 06:42 AM	#1
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Work hard to back up. This sucks. My 11.60 car let me down last night. 12.74 @ 107 was my best pass. The car feels like it is flying, but has no bottom end. I ran on radials just to see the 114- 116 mph that I should be seeing now, with the new cam and elec water pump, but it would not turn the numbers. I almost think it is the computer. Why would a engine rap up like crazy, then not run strong while under way? __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

11-20-2003, 10:18 AM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Looks like you lost about 90-100 HP somewhere. Anytime a motor seems to be running fine but not fast its almost always the timing. My brothers camaro went from a 14.10 to a 15.00 after a head and cam change. He had a bad distributor that had his timing all fucked up. After he fixed that he went from 15.00 to a mid 13. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

11-20-2003, 11:58 AM	#3
QuantumMotorsports Registered Member Join Date: Jul 2000 Location: Norman, Oklahoma, USA Posts: 597	Since you've had a timing problem in the past, I wouldn't be surprised if that's what it was. Either that, or the cam you put in isn't dialed in correctly. If you get no low end at all that would mean that maybe the cam timing is retarded a bit much, which might cause your ignition timing to need to be way too high for some reason. I really don't know, just a guess, maybe other people know more. Or you might have problems with your cam not fitting with your combo well. Just out of curiousity what tranny and rear gear setup do you have? __________________ Michael Black QuantumMotorsports Norman, OK 1984 LX Hatch 306 w/ TRW forged flat toppers, Comp Cams Magnum 292H, GT40P heads w/ 3 angle valve job, .550 lift springs, Angus Racing Roller Rockers, Weiand Stealth Intake, Holley 4150 650cfm carb, MAC 1 5/8 Long Tubes, Single Chamber Flowmasters, 91' T5 w/ Pro 5.0 shifter, Turbo Coupe 8.8 Rear w/ 3.55 gears, QA1 Motorsports tubular K member, no interior except steering wheel and seat. Coming soon: 6 or 8 point cage, Fuel Cell, Weld Draglites

11-21-2003, 06:21 AM	#4
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	3550 tremac, and 4.30s. I have a new SD computer on the way. Also I will check the cam timing. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

11-26-2003, 07:08 AM	#5
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Good news, We degreed the cam last night. It suppose to be in at 110 - 112 and it is acually at 117. I will get a multi index timing set today. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

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