GIBBS
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Registered: 22nd Feb 01
Location: Kent, Jap Car Importer :)
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The RX7 is not a SUPRA!!!!
the wastegate just cannot handle the higher performance and more exhaust gases, just by fitting a restrictor plate and boost controller will NOT stop creep! again i say.. this is NOT a supra or a Skyline, i have a mate with a supra running at 500bhp now.. he has full three flowing and no boost creep at all. Totally different to rx7.
to totally stop boost creep u need a different turbo setup with a large external wastegate.
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GIBBS
Member
Registered: 22nd Feb 01
Location: Kent, Jap Car Importer :)
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Yup they normally run TO4E's on their single turbo set ups.. theres a bloke down my way with gullwing doors full kit, 7k motec ecu ported everything done etc.. even got his fuel tank remade so he can have a exhaust out the otherside.. he's running... wiat for it... wait for it.... 2x TO4E's!! ONE FOR EACH ROTOR!!! MAD!!
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GIBBS
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Registered: 22nd Feb 01
Location: Kent, Jap Car Importer :)
User status: Offline
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NISMO.. can u measure the hks hiper pipe diameter (not tailpipe) please, i have 4" piping on mine at mo and want something with the same width pipe.
ta
matt
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Blazer
Member
Registered: 31st Aug 02
Location: Devon - Drives: frost blue 1.4L 8V
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get a bodykit on it
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Welsh Dan
Member
Registered: 23rd Mar 00
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On the RX7's you aren't really supposed to run more than a cat back exhaust and air filters without changing the ecu. As gibbs said, the rx7's run lean with the cat taken out and a down pipe, so an ecu is essential. Ask anyone who knows anything about tuning an rx7
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vibrio
Banned
Registered: 28th Feb 01
Location: POAH
User status: Offline
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I would have thought a turbo was a turbo. boost creep is because the actuator is slowly opening the wastegate.
if you remove back pressure your boost goes up which is why he is running 1 bar rather than 0.68bar. if you fit an intercooler the charge temp will go down and make the car safe to run.
best to get both ECU and intercooler at the same time
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Nismo
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Registered: 12th Sep 02
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quote:
Originally posted by GIBBS
NISMO.. can u measure the hks hiper pipe diameter (not tailpipe) please, i have 4" piping on mine at mo and want something with the same width pipe.
ta
matt
it is 4" bore
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GIBBS
Member
Registered: 22nd Feb 01
Location: Kent, Jap Car Importer :)
User status: Offline
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quote:
Originally posted by vibrio
I would have thought a turbo was a turbo. boost creep is because the actuator is slowly opening the wastegate.
if you remove back pressure your boost goes up which is why he is running 1 bar rather than 0.68bar. if you fit an intercooler the charge temp will go down and make the car safe to run.
best to get both ECU and intercooler at the same time
the problem with the rx7's vib is that the wastegate cannot open enough for the exhasut gases.. it cannot get rid of it all and thus not being able to control the amount of gases going to the turbo thus spinning more then it shud thus boost creep 
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GIBBS
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Registered: 22nd Feb 01
Location: Kent, Jap Car Importer :)
User status: Offline
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quote:
Originally posted by Nismo
quote:
Originally posted by GIBBS
NISMO.. can u measure the hks hiper pipe diameter (not tailpipe) please, i have 4" piping on mine at mo and want something with the same width pipe.
ta
matt
it is 4" bore
u 100% mate? hav u measured it for me? just need to be 100% sure befoe i buy one 
get a sound file of it idling revving and driving
Matt
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Grim Reaper
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Registered: 8th Aug 03
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Nice car mate, love RX-7's.
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GIBBS
Member
Registered: 22nd Feb 01
Location: Kent, Jap Car Importer :)
User status: Offline
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where u from nismo? u shoudl come bluewater with me , nick, andy, and a mate wit s2k and pose ya car next to mine 
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Nismo
Member
Registered: 12th Sep 02
User status: Offline
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quote:
Originally posted by GIBBS
quote:
Originally posted by Nismo
quote:
Originally posted by GIBBS
NISMO.. can u measure the hks hiper pipe diameter (not tailpipe) please, i have 4" piping on mine at mo and want something with the same width pipe.
ta
matt
it is 4" bore
u 100% mate? hav u measured it for me? just need to be 100% sure befoe i buy one
get a sound file of it idling revving and driving
Matt
ill measure it after work , but the guy working on it said hes put a 4" system all the way back to downpipe.
im from Bristol way South west.
[Edited on 08-08-2003 by Nismo]
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kinkycorsa
Member
Registered: 19th Feb 03
Location: Bristol
User status: Offline
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Lookin gd nath 
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Nismo
Member
Registered: 12th Sep 02
User status: Offline
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cheers
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