exhaust?
exhaust? I'm getting a 98z hardtop and stripping the car as much as possible it will be track only.i've had a road race f-body but never anything for drags is it better to run exhaust or open headers?it's just a bolt-ons car.
Put a 12" piece of 3" pipe on the end of each collector. If it is too loud, put a bullet on each one like I used to have!
You need more pipe than open headers otherwise you will burn up your 02 sensors.
You need more pipe than open headers otherwise you will burn up your 02 sensors.
If it is just a bolton car, run true duals with an X pipe. You will actually see more power and quicker times then running open headers, or extensions right off the headers.
Originally Posted by Matt D
If it is just a bolton car, run true duals with an X pipe. You will actually see more power and quicker times then running open headers, or extensions right off the headers.
Maybe a bit more power down low with true duals.....but I don't know about you, but when I drag race I'm NEVER below 4k rpms. I also happen to be friends with the creator of this thread and he bought this car with intentions of making it a stripper and cutting off every unnecessary pound.
if it's a drag only car, tune it open loop and don't run any o2's at all, and run a set of turndowns off the headers... any more then that and you're wasting your time.
I asslume if it's a bolton car you are gonna make a run at the stock internal record? If that's the case, you'll benefit more from the weight loss then any bottom end tq that an exhaust would make
I asslume if it's a bolton car you are gonna make a run at the stock internal record? If that's the case, you'll benefit more from the weight loss then any bottom end tq that an exhaust would make
Trending Topics
Originally Posted by JL ws-6
if it's a drag only car, tune it open loop and don't run any o2's at all, and run a set of turndowns off the headers... any more then that and you're wasting your time.
I asslume if it's a bolton car you are gonna make a run at the stock internal record? If that's the case, you'll benefit more from the weight loss then any bottom end tq that an exhaust would make
I asslume if it's a bolton car you are gonna make a run at the stock internal record? If that's the case, you'll benefit more from the weight loss then any bottom end tq that an exhaust would make
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
Originally Posted by ninetres
lol. No. Do you have dyno graphs or timeslips to support that claim with only an exhaust change and similar weather?
Maybe a bit more power down low with true duals.....but I don't know about you, but when I drag race I'm NEVER below 4k rpms. I also happen to be friends with the creator of this thread and he bought this car with intentions of making it a stripper and cutting off every unnecessary pound.
Maybe a bit more power down low with true duals.....but I don't know about you, but when I drag race I'm NEVER below 4k rpms. I also happen to be friends with the creator of this thread and he bought this car with intentions of making it a stripper and cutting off every unnecessary pound.
Originally Posted by crazy camaro
another ? is throwing on a set of 243 heads and ls6 cam in void of the stock internals list?
Originally Posted by Matt D
Time slips, and had it on the dyno but I will have to look for the sheets. It was on a cam only car though. You would lose more on a bolton car.
I've heard different. Never actually tested it myself though.
I'd be very surprised to see even a stock motor with open headers run slower in a full on drag setup then it would with an exhaust... I just don't buy it.
I bet if magnus sees this, (one of the fastest SI cars ever) I'm sure he will chime in and answer the question.
I bet if magnus sees this, (one of the fastest SI cars ever) I'm sure he will chime in and answer the question.
Originally Posted by JL ws-6
I'd be very surprised to see even a stock motor with open headers run slower in a full on drag setup then it would with an exhaust... I just don't buy it.
I bet if magnus sees this, (one of the fastest SI cars ever) I'm sure he will chime in and answer the question.
I bet if magnus sees this, (one of the fastest SI cars ever) I'm sure he will chime in and answer the question.
Here you go if you don't believe me:
https://ls1tech.com/forums/drag-racing-results/598343-new-stock-internal-record-10-92-121-mph.html (Project_SS)
I have read that before, but I still don't believe it.
I ever start another ls1 project car I will make a point to do the entire car first and leave a stock motor in it for at least a good part of a season to disprove this "theory"
I ever start another ls1 project car I will make a point to do the entire car first and leave a stock motor in it for at least a good part of a season to disprove this "theory"
Sux2bu had a bullet on each header, and was just as fast as those cats when he was SI. The only reason he isn't on the list is because of his arp rod bolts. Regardless, I'm sure it isn't more than 1-3 whp. BFD.
Originally Posted by JL ws-6
I have read that before, but I still don't believe it.
I ever start another ls1 project car I will make a point to do the entire car first and leave a stock motor in it for at least a good part of a season to disprove this "theory"
I ever start another ls1 project car I will make a point to do the entire car first and leave a stock motor in it for at least a good part of a season to disprove this "theory"
I'm saying if you lost power taking the exhaust off.. it was tune related. I'm sure of it. I would bet that just dropping it off and not retuning for it would a loss.... but if tuned over for open headers it would make more power. For it to work right, you'd have to run it in open loop, I'm guessing that wasn't done, hence the power loss.
with roughly 350 rwhp (stock internal motor with all the boltons), I'm sure that even with a low end power loss, losing 40 lbs of exhaust pipe would be more beneficial then more power on a race car that is never below 5000 rpm the whole way down the track.
with roughly 350 rwhp (stock internal motor with all the boltons), I'm sure that even with a low end power loss, losing 40 lbs of exhaust pipe would be more beneficial then more power on a race car that is never below 5000 rpm the whole way down the track.