Why is she so slow? :(
02-02-2010, 01:42 PM
#1
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Why is she so slow? :( What SHOULD this car run? Its currently running low 13's, which seems a bit slow to me 
1995 Trans Am, 95xxx miles, A4. Engine rebuilt a couple years ago.
Comp Cams Xtreme Energy cam
Comp hydraulic roller lifters
Proform aluminum roller rockers
P&P'd heads/intake
Stainless steel valves
SpeedPro forged aluminum pistons
MSD 6AL
MSD coil
MSD 8.5mm wires
BBK 58mm TB
Edelbrock headers
Lucas 42lb injectors
Granatelli 255lph fuel pump
Granatelli Racing MAF
TrickFlow intake elbow
K&N CAI
aftermarket computer
4.10 gears
Cam specs are here, 7th post: (sorry, on a work computer, can't resave the picture and put it up again)
https://ls1tech.com/forums/lt1-lt4-m...injectors.html
1995 Trans Am, 95xxx miles, A4. Engine rebuilt a couple years ago.
Comp Cams Xtreme Energy cam
Comp hydraulic roller lifters
Proform aluminum roller rockers
P&P'd heads/intake
Stainless steel valves
SpeedPro forged aluminum pistons
MSD 6AL
MSD coil
MSD 8.5mm wires
BBK 58mm TB
Edelbrock headers
Lucas 42lb injectors
Granatelli 255lph fuel pump
Granatelli Racing MAF
TrickFlow intake elbow
K&N CAI
aftermarket computer
4.10 gears
Cam specs are here, 7th post: (sorry, on a work computer, can't resave the picture and put it up again)
https://ls1tech.com/forums/lt1-lt4-m...injectors.html
02-02-2010, 01:43 PM
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Oh, and I didn't build it, it had almost everything (except the 4.10s) when I bought it, so I'm not sure on some of the specifics
02-02-2010, 02:50 PM
#4
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I'm going to guess there are 2 reasons it is not faster:
1) your 60' is not very solid
2) no stall converter
Resolution: stall converter and drag radials
Can you post a full timeslip so we can help more?
1) your 60' is not very solid
2) no stall converter
Resolution: stall converter and drag radials
Can you post a full timeslip so we can help more?
02-02-2010, 02:52 PM
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Yeah, shitty 60' 1.9 is the best so far. Its got a B&M 2400 stall, so pretty frickin low
Unfortunately I'm at work, I'll check out some time slips later and post them
I ran BFG DR's last season, didn't like them much
1.9 is the best so far. Its got a B&M 2400 stall, so pretty frickin lowUnfortunately I'm at work, I'll check out some time slips later and post them
I ran BFG DR's last season, didn't like them much
02-02-2010, 03:07 PM
#6
Put it a REAL converter, something along the lines of a Yank or Precision Industries 3200 stall, put a 3.73 gear in (4.10 is too much IMO). Those along with some stickier DR tires and you should be low 12s easy. Ditch the horrible, HORRIBLE shorty Edelbrock headers and you might see 11s.
What y-pipe and catback?
02-02-2010, 03:18 PM
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Oh. Lovely. I was planning on moving up to a 3600 sometime this summer, I'll move that up the to-do list I guess
Why is 4.10 too much? And what's wrong with the headers?
Unfortunately I think the exhaust is stock, other than the muffler. I was thinking of putting in a cut out?
Put it a REAL converter, something along the lines of a Yank or Precision Industries 3200 stall, put a 3.73 gear in (4.10 is too much IMO). Those along with some stickier DR tires and you should be low 12s easy. Ditch the horrible, HORRIBLE shorty Edelbrock headers and you might see 11s.
What y-pipe and catback?
What y-pipe and catback?
Unfortunately I think the exhaust is stock, other than the muffler. I was thinking of putting in a cut out?
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02-02-2010, 09:38 PM
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I don't think 4.10's would be too much with an auto, just needs to be matched to the stall and the tires. Plus you have an auto so you have an advantage in launching.
02-06-2010, 09:07 AM
#9
What is your shift point? 4.10 is too much for most mild auto applications - many perform the same or better with a 3.73s.
The Edelbrock headers? They're not much better than stock manifolds. The primaries pinch down to nothing at the collector. They're crushed into a tiny 2.125" collector.
The Edelbrock headers? They're not much better than stock manifolds. The primaries pinch down to nothing at the collector. They're crushed into a tiny 2.125" collector.
02-06-2010, 11:45 AM
#10
Ive seen you post quite a bit about weight reduction so it seems this is a track car that may lightly be driven on the street right?
If it were me, id put longtubes and a cutout(if your track will allow it open), then a stall that will match with the cam, and maybe even look into a pair of 15x8 prostars with some et streets.
What is done to the suspension? Still running the front sway bar? If so yank it off and 60 fts will improve for sure.
If it were me, id put longtubes and a cutout(if your track will allow it open), then a stall that will match with the cam, and maybe even look into a pair of 15x8 prostars with some et streets.
What is done to the suspension? Still running the front sway bar? If so yank it off and 60 fts will improve for sure.
02-06-2010, 12:09 PM
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Ive seen you post quite a bit about weight reduction so it seems this is a track car that may lightly be driven on the street right?
If it were me, id put longtubes and a cutout(if your track will allow it open), then a stall that will match with the cam, and maybe even look into a pair of 15x8 prostars with some et streets.
What is done to the suspension? Still running the front sway bar? If so yank it off and 60 fts will improve for sure.
If it were me, id put longtubes and a cutout(if your track will allow it open), then a stall that will match with the cam, and maybe even look into a pair of 15x8 prostars with some et streets.
What is done to the suspension? Still running the front sway bar? If so yank it off and 60 fts will improve for sure.
Our track director just emailed me to tell me that thanks to the new high end subdivision that was recently built next to the track, we now have to run MUFFLERS at the track. ******* lame. Apparently the snobs were complaining about the noise. So there goes my idea for the cutout
I drive the car almost daily in the summer, so I've been a bit worried about yanking the front sway bar. I've got a fairly twisty road on my way to work. Suspension is stock so far, was going to start on that this year, just not sure which direction to go, or where to start.
02-06-2010, 12:11 PM
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Those are going in the trash... anyone have a decent set of headers for sale? lol
02-06-2010, 03:01 PM
#13
Our track director just emailed me to tell me that thanks to the new high end subdivision that was recently built next to the track, we now have to run MUFFLERS at the track. ******* lame. Apparently the snobs were complaining about the noise. So there goes my idea for the cutout
I drive the car almost daily in the summer, so I've been a bit worried about yanking the front sway bar. I've got a fairly twisty road on my way to work. Suspension is stock so far, was going to start on that this year, just not sure which direction to go, or where to start.
I drive the car almost daily in the summer, so I've been a bit worried about yanking the front sway bar. I've got a fairly twisty road on my way to work. Suspension is stock so far, was going to start on that this year, just not sure which direction to go, or where to start.
