AJ Posted May 2, 2010 Report Share Posted May 2, 2010 Any lsx car this is going to go H/C will make more power with a 1 7/8 header over a 1 3/4. For any artical you find I'm sure I can't find twice as many people who either ET better with the larger exhaust or made more power on the dyno. go for it, i didn't say 1 3/4" anywhere so i'm sure you will find that. smaller headers make more torque than big headers. not the artical i was talking about but still a good read. Quote Link to comment Share on other sites More sharing options...
AJ Posted May 2, 2010 Report Share Posted May 2, 2010 http://www.carcraft.com/techarticles/ls1_engine_header_test/evaluation_dyno_numbers.html still not the one i was looking for. Quote Link to comment Share on other sites More sharing options...
Linn1647545492 Posted May 2, 2010 Report Share Posted May 2, 2010 go for it, i didn't say 1 3/4" anywhere so i'm sure you will find that. smaller headers make more torque than big headers. not the artical i was talking about but still a good read. Smaller headers will more torque down low but, will not make more power or torque in the mid to upper range. Quote Link to comment Share on other sites More sharing options...
Squale iii Posted May 2, 2010 Report Share Posted May 2, 2010 not reading thru, but if you're not doing LT's, don't bother swapping headers. Quote Link to comment Share on other sites More sharing options...
Linn1647545492 Posted May 2, 2010 Report Share Posted May 2, 2010 http://www.carcraft.com/techarticles/ls1_engine_header_test/evaluation_dyno_numbers.html still not the one i was looking for. Power under the curve 1 7/8 headers make more power not to mention that is a stock cammed car. Any one that wants to make big power will always make more with 1 7/8 Quote Link to comment Share on other sites More sharing options...
Squale iii Posted May 2, 2010 Report Share Posted May 2, 2010 If you want to get good power, good sound, and do it for $700 or less...Do my setup. Pacesetter Long tubes ($315), Pacesetter ORY ($200), magnaflow 1 chamber bullet muffler ($65), dumped before the axle. Sounds awesome, flows great, cheap as hell lol. Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 I tried thread searches and i cannot find a define answer. Bottom line is I HAVE BBK 1 7/8 headers with 2.5 ORY on the way. I currently have An All Stock a4 Z28. Should I keep the 2.5 ORY And Get my SLPLM? Or Sell the ORY And run A custom True Dual Exhaust? If i run true duals, what size piping should i go with? 2.5? 2.75? 3? 1.5? Lol I'm Going for the most performance on a factory motor with a lid. Maybe heads and cam later. I don't really care about drone or how loud itll be. I just want the best numbers dyno wise. Quote Link to comment Share on other sites More sharing options...
meatloaf169 Posted May 11, 2010 Report Share Posted May 11, 2010 true dual exhaust should sound pretty nice Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 I also picked up 2 3" flowmaster mufflers also Quote Link to comment Share on other sites More sharing options...
Linn1647545492 Posted May 11, 2010 Report Share Posted May 11, 2010 I also picked up 2 3" flowmaster mufflers also Are you sure the BBK headers you got are 1 7/8s? The only ones they sell on their website are 1 3/4. You want the Y to be atleast 3 inches and if you are looking for the best performance you should have listened to my first post in this thread. Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 Ok But I dont thing i like 2 exhausts running into 1 (y pipe) on a V8. Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 (edited) they are the bbk 1-3/4 Edited May 11, 2010 by Protection Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 http://www.bbkperformance.com/products/exhaust-headers/full-length-exhaust-headers/gm-full-length-headers/98-02-ls1-f-body-full-length-headers-and-25inch-y-pipe.html Quote Link to comment Share on other sites More sharing options...
gillbot Posted May 11, 2010 Report Share Posted May 11, 2010 Ok But I dont thing i like 2 exhausts running into 1 (y pipe) on a V8. Why keep asking for advice if you don't plan on listening to the suggestions then? Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 Well, rude boy. I want to see if anyone has done a custom tru dual exhaust and maybe has numbers from a switch from an ory. But it looks like two people have fbody's on here. But I know if I were going y pipe I'd want a 3 inch. But since I'm thinking duals three inch may not be the best. So anyone else. 2.5 inch or 2.75 on the duals? No y pipe. No x pipe. Just straight back with the flowmaSTer mufflers I have. Quote Link to comment Share on other sites More sharing options...
99ta Posted May 11, 2010 Report Share Posted May 11, 2010 TD will give you the most power. I would go with bigger the better, esp if you plan on h/c down the rd. Quote Link to comment Share on other sites More sharing options...
Protection Posted May 11, 2010 Author Report Share Posted May 11, 2010 thank you. I kinda figured that, but maybe i was thinking they made it a stock Y pipe for a reason instead of just clearance issues. Quote Link to comment Share on other sites More sharing options...
Linn1647545492 Posted May 13, 2010 Report Share Posted May 13, 2010 (edited) stock Y pipe for a reason, clearance issues. good luck fitting much else under the car. When people do the x pipe it dumps before the rear axle. This is the last time I'm going to say this to you. The cheapest way to make the most power is Longtubes, ORY and a cut out. Edited May 13, 2010 by Linn Quote Link to comment Share on other sites More sharing options...
2 Sweet Posted May 13, 2010 Report Share Posted May 13, 2010 This is the last time I'm going to say this to you. The cheapest way to make the most power is Longtubes, ORY and a cut out. +1, and if you still don't believe it, do some research on tech. Dyno sheets and track times do not lie Quote Link to comment Share on other sites More sharing options...
Squale iii Posted May 13, 2010 Report Share Posted May 13, 2010 Well, rude boy. I want to see if anyone has done a custom tru dual exhaust and maybe has numbers from a switch from an ory. But it looks like two people have fbody's on here. But I know if I were going y pipe I'd want a 3 inch. But since I'm thinking duals three inch may not be the best. So anyone else. 2.5 inch or 2.75 on the duals? No y pipe. No x pipe. Just straight back with the flowmaSTer mufflers I have. 1.) The dyno whp difference on your setup between an ORY and true duals are going to be negligible. 2.) You're adding more weight running two mufflers instead of one. 3.) If you want power and speed...why did you go with flowmaster mufflers? Those are barely a step up from stock! Quote Link to comment Share on other sites More sharing options...
Protection Posted May 13, 2010 Author Report Share Posted May 13, 2010 2.) You're adding more weight running two mufflers instead of one. 3.) If you want power and speed...why did you go with flowmaster mufflers? Those are barely a step up from stock! Good Point. And I Thought it was a "sorta" significant difference Switching. Quote Link to comment Share on other sites More sharing options...
Linn1647545492 Posted May 13, 2010 Report Share Posted May 13, 2010 Good Point. And I Thought it was a "sorta" significant difference Switching. Not at all. Your only significant differance will be with a CUTOUT there is a reason why so many people run them. Once you start to make over 400 wheel 1 7/8 longtubes are a must. When I upgrade from 1 3/4 to 2 inch I'll post the graph of me picking up 20 - 30 wheel. Like Squale said Flowmasters barley make more power than a stock muffler. Here is what my car did when it was a h/c car with the cut out open and closed. http://s165.photobucket.com/albums/u57/playwithlinn/?action=view¤t=LinnCutoutvsStockMuffler.jpg&newest=1 Quote Link to comment Share on other sites More sharing options...
STEVE-O Posted May 13, 2010 Report Share Posted May 13, 2010 This is the last time I'm going to say this to you. The cheapest way to make the most power is Longtubes, ORY and a cut out. I dont see how this thread lasted past this answer??? It is easy cheap sounds good and makes great power... Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted May 13, 2010 Report Share Posted May 13, 2010 article Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.