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Track day...help.... Posted By: LTCA On: 03-13-2010 @ 00:49:51 Reply | Edit Well, today was my first day at the track, I have a 80 camaro w/400sb and a tci 350 turbo, using 3.73 gears and hoosier 26x9x15's I ran a 8.42 was my best (1/8th mile track here). not too bad for a full bodied car with full interior and power windows, and I drove it there, swapped the slicks, then drove it back home. But I have found some problem areas, first I need more converter, right now I'm stalling at about 2600 rpms, it launches hard, but it kinda takes it a split second to get riled up. also I need to change gears, I need more to carry this car down the track, I shift 1-2 at 5400 and pass through the traps at 5500 in second, never hit third. 60' ft times were mostly around 1.7xx and I was finishing with speeds of around 79-82 mph. I want the car to do 7.9 with the same motor. would pulling the backseat, ditching the hood, swapping to 4.56's and changine the stall get me .5 a second off my e/t? I'm kinda tight for funds right now. but asap I want a fiberglass hood and racing seats. any help or advice would be greatly appreiceated, thanks. -- 1980 Camaro-400sb, tci 350 turbo, 3.73's 8.42 in 1/8th on slicks (full body and interior) soon to be 7.90's 1996 firebird 3.8-slow, I work at a car audio Posted By: blck89rs On: 02-26-2006 @ 11:35:38 Reply | Top | Edit the weight reduction would help but it would have to be a good amount of weight. Now the gears, unless you run a bigger diameter tire, such as a 28", the 4.56's would hurt you more then help so consider something like 4.10's/4.11's, another aspect you could look at is rims,? what kind do you have now? , also , what cam do you have in it , you might need a higher stall converter -- If you can drive it to the supermarket and back without having to tear down the motor, it's a street car   http://photobucket.com/albums/b373/fbm314 1978 malibu, 355, th350,3500stall, 4:56's, eaton posi, m/t e/t streets, 7.5" rear  [ Edited on 02/26/2006 @ 11:36:41 ] Posted By: LTCA On: 02-26-2006 @ 12:05:07 Reply | Top | Edit I am using cragar s/s wheels. the cam is a comp cams XE284, the torque converter is a b&m holeshot 3000, but the car is so damn heavy it only stalls around 2600. Last night I pulled all the seats and interior panels, got two of those summit racing buckets. and I am going to look at a fiberglass hood today, and the power windows are coming out. -- 1980 Camaro-400sb, tci 350 turbo, 3.73's 8.42 in 1/8th on slicks (full body and interior) soon to be 7.90's 1996 firebird 3.8-slow, I work at a car audio Posted By: blck89rs On: 02-26-2006 @ 12:37:41 Reply | Top | Edit try and find a cheap set of weld wheels, theyre light as anything, also what kind of suspension pats are you running? -- If you can drive it to the supermarket and back without having to tear down the motor, it's a street car
http://photobucket.com/albums/b373/fbm314 1978 malibu, 355, th350,3500stall, 4:56's, eaton posi, m/t e/t streets, 7.5" rear Posted By: LTCA On: 02-26-2006 @ 15:18:56 Reply | Top | Edit qa1 shocks, leaf springs and slapper bars. -- 1980 Camaro-400sb, tci 350 turbo, 3.73's 8.42 in 1/8th on slicks (full body and interior) soon to be 7.90's 1996 firebird 3.8-slow, I work at a car audio Posted By: blck89rs On: 02-26-2006 @ 18:26:53 Reply | Top | Edit sounds good ,whats your 60' time? -- If you can drive it to the supermarket and back without having to tear down the motor, it's a street car
http://photobucket.com/albums/b373/fbm314 1978 malibu, 355, th350,3500stall, 4:56's, eaton posi, m/t e/t streets, 7.5" rear Posted By: chrisozanne On: 02-26-2006 @ 19:11:11 Reply | Top | Edit what track did you go to? just curious the one near me was open today? music city raceway in TN would be a long shot to being same track but would be cool lol. was gonna run my car today but damn tranny shop didnt have it done yet..... Posted By: LTCA On: 02-26-2006 @ 20:26:58 Reply | Top | Edit Buffalo Valley-aka Mid Tn dragway near cookeville, about 15 mins from my house, my 60 ft. times were anywhere from 1.6xx to 1.7xx on a 60 degree day -- 1980 Camaro-400sb, tci 350 turbo, 3.73's 8.42 in 1/8th on slicks (full body and interior) soon to be 7.90's 1996 firebird 3.8-slow, I work at a car audio Posted By: LTCA On: 02-26-2006 @ 20:27:47 Reply | Top | Edit well the converter is going to cost a lil too much, would just removing the heavy steel hood, swapping the gears, and pulling the backseat, and relocating the battery to the back in the trunk be enough to get me to 7.9? I also currently use a edelbrock 750 carb and a dude at the track said swapping to a holley double pumper 600 would do a little better. My motor has splayed main caps, forged scat crank, pinkland rods, and srp forged 10:1 flattops w/one-peice rings, I have been thinking of a 150hp nitrous set up but I am worried about reliability and that stuff, how much time could I expect to drop on n2o? and would you recommend it? -- 1980 Camaro-400sb, tci 350 turbo, 3.73's 8.42 in 1/8th on slicks (full body and interior) soon to be 7.90's 1996 firebird 3.8-slow, I work at a car audio Posted By: blck89rs On: 02-26-2006 @ 21:44:16 Reply | Top | Edit well, first off dont touch the carb, a 600 would choke that engine, i doubt the weight reduction would be good enough to go from 8.4 to 7.9 probably enough to go to 8.-8.3, now the nitrous, if your not going to spray all the time, only when you run it on the track, itll hold, what you would need to do is run a colder plug and back the timing down a little bit as to not cause detonation, also practice your 60 foot times, with the 150 shot you could be looking at as low as a 7.6 -- If you can drive it to the supermarket and back without having to tear down the motor, it's a street car
http://photobucket.com/albums/b373/fbm314 1978 malibu, 355, th350,3500stall, 4:56's, eaton posi, m/t e/t streets, 7.5" rear Posted By: LTCA On: 02-26-2006 @ 23:42:32 Reply | Top | Edit I have also been looking at junkyard parts and I believe I could build a big single/small twins turbo setup for a fair price, I have some expierance with turbo'd rx7's so this shouldnt be too hard, but running 10:1 comp. I cuold only use what 4-6lbs of boost on 93 octane and around 12 on 114? this should make a 7 second car if I boost it  any thoughts? or should I just spend 400 bux and buy a NOS cheater system.-- 1980 Camaro-400sb, tci 350 turbo, 3.73's 8.42 in 1/8th on slicks (full body and interior) soon to be 7.90's Posted By: blck89rs On: 02-27-2006 @ 13:35:53 Reply | Top | Edit id be a little leary still running that comp ratio with boost, but you could pull the heads and run a thicker head gasket to lower the comp ratio, as for which one to use, thats totally up to you -- If you can drive it to the supermarket and back without having to tear down the motor, it's a street car
http://photobucket.com/albums/b373/fbm314 1978 malibu, 355, th350,3500stall, 4:56's, eaton posi, m/t e/t streets, 7.5" rear Posted By: MMotorsports On: 03-11-2006 @ 00:34:53 Reply | Top | Edit Your 60 ft time has 7.90 written all over it. I'd try a 4.10 or a 4.30 gear. I run a 406 with a glide and I have a 4.56 gear with 28x10.5 tires. A glass hood would help too. but not like you'd think. every 100 lbs. dropped = .10 quicker theoretically. -- 87 Camaro 406cui. 1/8th 6.765 @ 101.42mph 1.462 60ft. all throttle, no bottle..  http://home.comcast.net/~rmracing/6.79.wmv [ Edited on 03/11/2006 @ 00:37:25 ]
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