ioneabee Posted April 19, 2015 Share Posted April 19, 2015 I think you should have side pipes like the Cobra Quote Link to comment Share on other sites More sharing options...
Adrian@TORQEN Posted April 19, 2015 Share Posted April 19, 2015 I think you should have side pipes like the Cobra That will he highly dangerous, you will get either sucked in or blown away like a leaf Quote Link to comment Share on other sites More sharing options...
GT4 Zed Posted April 19, 2015 Share Posted April 19, 2015 (edited) That's good news mate👠But 5" tail pipes are abit rice IMO. 4" will do the job and look good. Are you sure you don't want any muffing? It is going to be very very loud without🙀! You can get mufflers that donot reduce flow BTW. Edited April 19, 2015 by GT4 Zed 1 Quote Link to comment Share on other sites More sharing options...
Keyser Posted April 19, 2015 Share Posted April 19, 2015 (edited) That's good news mate������ But 5" tail pipes are abit rice IMO. 4" will do the job and look good. Are you sure you don't want any muffing? It is going to be very very loud without������! You can get mufflers that donot reduce flow BTW. What you basing that on Bennet? I ask as 4" was picked after research - in fact 4" is considered border line too big for an N/A LS engine - apparently the performance drops of dramatically if the pipes are to big. 4" was used as it's as big as you can go N/A but is also fine for first stage SC. This is because the engine was developed for the American market and has the CAT's and numerous silencers to keep it legal over there - this creates high back pressure that the designers took into account on the LS3 - This is just what we have been told by tuners and doing some research. If we are wrong the Zorst has not been built yet so we can easily upgrade to 5" now for very little cost - Best get it right now Edit: Ignore me Bennet - they pointed out below you were referring to tail pipes not system bore size - Couple of old dustbins will do that bit of the job Edited April 19, 2015 by Keyser 1 Quote Link to comment Share on other sites More sharing options...
gsexr Posted April 19, 2015 Share Posted April 19, 2015 Luv getting my build fix with this thread keep it coming 1 Quote Link to comment Share on other sites More sharing options...
Ian Posted April 19, 2015 Share Posted April 19, 2015 That's good news mate������ But 5" tail pipes are abit rice IMO. 4" will do the job and look good. Are you sure you don't want any muffing? It is going to be very very loud without������! You can get mufflers that donot reduce flow BTW. What you basing that on Bennet? I ask as 4" was picked after research - in fact 4" is considered border line too big for an N/A LS engine - apparently the performance drops of dramatically if the pipes are to big. 4" was used as it's as big as you can go N/A but is also fine for first stage SC. This is because the engine was developed for the American market and has the CAT's and numerous silencers to keep it legal over there - this creates high back pressure that the designers took into account on the LS3 - This is just what we have been told by tuners and doing some research. If we are wrong the Zorst has not been built yet so we can easily upgrade to 5" now for very little cost - Best get it right now I think Bennett means tail pipe size not exhaust size 4" is huge though! Mines only 3" Quote Link to comment Share on other sites More sharing options...
ioneabee Posted April 19, 2015 Share Posted April 19, 2015 size is not everything you know ............... so I'm told Quote Link to comment Share on other sites More sharing options...
Wasso Posted April 19, 2015 Author Share Posted April 19, 2015 I believe it's 2.5" from the headers. 3" entire system, but discussing 4" or 5" for just the tailpipes. Don't worry Bennett it won't be as loud as your "stealth" "no noise" supercharger the sound can be adjusted, we are working on at least two mufflers at the back with a poss view of a single X box in the middle. None of this flame spitting down the side Andy, no, just no. To be fair if it's too loud then we can always make adjustments. The tail pipes even if they were 5" would be no bigger than the Audi RS4 or TTRS, in anycase the exhaust will have a custom look which no other zed will have 1 Quote Link to comment Share on other sites More sharing options...
Wasso Posted April 19, 2015 Author Share Posted April 19, 2015 That's good news mateí ½í± But 5" tail pipes are abit rice IMO. 4" will do the job and look good. Are you sure you don't want any muffing? It is going to be very very loud withoutí ½í¹€! You can get mufflers that donot reduce flow BTW. Oh and Bennett I'm quite happy get regular amounts of muffing Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted April 19, 2015 Share Posted April 19, 2015 Funny you say that Dave, I was considering the actual pipes from a Corvette, but I just don't think it works with the Zed styling. I also have another plan for the exhaust, which will require a totally custom bumper, themed on the CS rear but better, much better! That side of the project will be at the end, just want all the necessary "running" bits in place and working well before cosmetics. Quad pipes would look and sound awesome, all that popping and burbling Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Keyser Posted April 19, 2015 Share Posted April 19, 2015 That's good news mate������ But 5" tail pipes are abit rice IMO. 4" will do the job and look good. Are you sure you don't want any muffing? It is going to be very very loud without������! You can get mufflers that donot reduce flow BTW. What you basing that on Bennet? I ask as 4" was picked after research - in fact 4" is considered border line too big for an N/A LS engine - apparently the performance drops of dramatically if the pipes are to big. 4" was used as it's as big as you can go N/A but is also fine for first stage SC. This is because the engine was developed for the American market and has the CAT's and numerous silencers to keep it legal over there - this creates high back pressure that the designers took into account on the LS3 - This is just what we have been told by tuners and doing some research. If we are wrong the Zorst has not been built yet so we can easily upgrade to 5" now for very little cost - Best get it right now I think Bennett means tail pipe size not exhaust size 4" is huge though! Mines only 3" Yer Think I read that wrong first time - You only need 3 Wasso has a 6.3 - don't think you quite make that much displacement I only picked up on it as we were discussing Zorst size/bore yesterday and thought we may have missed something Quote Link to comment Share on other sites More sharing options...
Wasso Posted April 19, 2015 Author Share Posted April 19, 2015 Funny you say that Dave, I was considering the actual pipes from a Corvette, but I just don't think it works with the Zed styling. I also have another plan for the exhaust, which will require a totally custom bumper, themed on the CS rear but better, much better! That side of the project will be at the end, just want all the necessary "running" bits in place and working well before cosmetics. Quad pipes would look and sound awesome, all that popping and burbling Sent from my iPhone using Tapatalk Popping and burbling will happen with 2 or 4 pipes. I don't think 4 pipes suits the zed though. Quote Link to comment Share on other sites More sharing options...
Wasso Posted April 19, 2015 Author Share Posted April 19, 2015 That's good news mate������ But 5" tail pipes are abit rice IMO. 4" will do the job and look good. Are you sure you don't want any muffing? It is going to be very very loud without������! You can get mufflers that donot reduce flow BTW. What you basing that on Bennet? I ask as 4" was picked after research - in fact 4" is considered border line too big for an N/A LS engine - apparently the performance drops of dramatically if the pipes are to big. 4" was used as it's as big as you can go N/A but is also fine for first stage SC. This is because the engine was developed for the American market and has the CAT's and numerous silencers to keep it legal over there - this creates high back pressure that the designers took into account on the LS3 - This is just what we have been told by tuners and doing some research. If we are wrong the Zorst has not been built yet so we can easily upgrade to 5" now for very little cost - Best get it right now I think Bennett means tail pipe size not exhaust size 4" is huge though! Mines only 3" Yer Think I read that wrong first time - You only need 3 Wasso has a 6.3 - don't think you quite make that much displacement I only picked up on it as we were discussing Zorst size/bore yesterday and thought we may have missed something I know we missed out plans for a new bungalow Yup 3" bore front to back. It's also a 6.2 Chris but if you want to add 0.1 every so often I'll be more than happy. Quote Link to comment Share on other sites More sharing options...
Humpy Posted April 19, 2015 Share Posted April 19, 2015 Have to agree 4 pipes don't look right on a zed imo. Look forward to seeing what plans you have for this exhaust 1 Quote Link to comment Share on other sites More sharing options...
Bodyboarder81 Posted April 19, 2015 Share Posted April 19, 2015 This is all a great read and project !! What sort of bhp and ftlb will it be making when all mapped up ? Crazy ftlb I would have thought! Are you adding a LSD ? 1 Quote Link to comment Share on other sites More sharing options...
Wasso Posted April 19, 2015 Author Share Posted April 19, 2015 This is all a great read and project !! What sort of bhp and ftlb will it be making when all mapped up ? Crazy ftlb I would have thought! Are you adding a LSD ? Well stage one is get everything running and get a base dyno tune, incorporating improved headers and exhaust over that of the restrictive original 2.5" Corvette exhaust and full of cats and mufflers. I've also upgraded the Air Intake for the LS, allowing for huge volumes of air. Stock is 436 bhp @ 5,900 RPM and 428 Ib-ft @ 4,600 RPM. The important factor even stock is that you get 300 Ib-ft of torque at 2,000 RPM which continuously increasing to 4,600 RPM Whatever the first dyno delivers I'll be happy for anything above the stock figures. The benefit is that whacking a Air Intake on a LS3 over that of a Zed, you WILL be rewarding with positive gains. Once the engine and car is done, she will go in for stage 2 CAMS, where I'm looking to reach anything above 500bhp and 470 Ib-ft of torque. Once I'm thirsty for more power (I may be satisfied) then for the total cost of £7k a SC or Rear Mount turbo will go on. Regions of 650-700 are achievable. Anything above that and it's forging the engine time. Already purchased a Kazz 1.5 way LSD glad you've enjoyed the read..... (I might read it one day lol) 5 Quote Link to comment Share on other sites More sharing options...
ChrisB Posted April 19, 2015 Share Posted April 19, 2015 ^^ drool... Quote Link to comment Share on other sites More sharing options...
glrnet Posted April 19, 2015 Share Posted April 19, 2015 Great to see some progress Ian, it's a good job you are a patient soul, I'd be fuming by now. Can't wait for the next installment. Quote Link to comment Share on other sites More sharing options...
gsexr Posted April 19, 2015 Share Posted April 19, 2015 Stock is 436 bhp @ 5,900 RPM and 428 Ib-ft @ 4,600 RPM Nuff Said Quote Link to comment Share on other sites More sharing options...
BulletMagnet Posted April 19, 2015 Share Posted April 19, 2015 Have the custom exhaust end where the vents are in the CS rear bumper, with the tips matched to the cut-outs Quote Link to comment Share on other sites More sharing options...
Bodyboarder81 Posted April 19, 2015 Share Posted April 19, 2015 This is all a great read and project !! What sort of bhp and ftlb will it be making when all mapped up ? Crazy ftlb I would have thought! Are you adding a LSD ? Well stage one is get everything running and get a base dyno tune, incorporating improved headers and exhaust over that of the restrictive original 2.5" Corvette exhaust and full of cats and mufflers. I've also upgraded the Air Intake for the LS, allowing for huge volumes of air. Stock is 436 bhp @ 5,900 RPM and 428 Ib-ft @ 4,600 RPM. The important factor even stock is that you get 300 Ib-ft of torque at 2,000 RPM which continuously increasing to 4,600 RPM Whatever the first dyno delivers I'll be happy for anything above the stock figures. The benefit is that whacking a Air Intake on a LS3 over that of a Zed, you WILL be rewarding with positive gains. Once the engine and car is done, she will go in for stage 2 CAMS, where I'm looking to reach anything above 500bhp and 470 Ib-ft of torque. Once I'm thirsty for more power (I may be satisfied) then for the total cost of £7k a SC or Rear Mount turbo will go on. Regions of 650-700 are achievable. Anything above that and it's forging the engine time. Already purchased a Kazz 1.5 way LSD glad you've enjoyed the read..... (I might read it one day lol) And it will sound like the devil doing a growl !! Can't wait to see / hear it . Quote Link to comment Share on other sites More sharing options...
Wasso Posted April 19, 2015 Author Share Posted April 19, 2015 I like that ha ha Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted April 19, 2015 Share Posted April 19, 2015 Have to agree 4 pipes don't look right on a zed imo. Look forward to seeing what plans you have for this exhaust Quads look great on a GTR, looks meatier and would suit a big engined V8 too that was my logic... Quote Link to comment Share on other sites More sharing options...
ioneabee Posted April 19, 2015 Share Posted April 19, 2015 your photoshop skills will help here Dave Quote Link to comment Share on other sites More sharing options...
Humpy Posted April 19, 2015 Share Posted April 19, 2015 Have to agree 4 pipes don't look right on a zed imo. Look forward to seeing what plans you have for this exhaust Quads look great on a GTR, looks meatier and would suit a big engined V8 too that was my logic... one man's meat is another man's poison. It is still a zed and not a Gtr though, guess that I am just used to seeing two pipes on the zed. Quote Link to comment Share on other sites More sharing options...
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