wewsupra Posted September 27, 2008 Share Posted September 27, 2008 i have a supra na/tt 318bhp but ive got no cats on it,i got apexi induction kit,bov,hks fd should i be kickin more power. plus i got boost gauge and every gear from 2 upwards the boost controller gets up to 0.5-0.6 bar but in first the boost gauge dont even move much,should it ? plus i keep gettin black smoke out of exhaust and its doing my head makes car look old {if you get me} Quote Link to comment Share on other sites More sharing options...
Deacon2k Posted September 27, 2008 Share Posted September 27, 2008 i ain't too good at this stuff but i'm sure with both cats removed the car would over boost at around 1.6bar unless it had a re-stricter ring or a boost control fitted. Quote Link to comment Share on other sites More sharing options...
dannysupratt Posted September 27, 2008 Share Posted September 27, 2008 Your boost controller is more than likely wrong as standard boost is more than that, is it a cheap one? You should be pulling more power than that but as said if you havent got a restrictor ring fitted you will be boosting way more than that and probably fitting fuel cut. As for the black smoke thats not normally a problem it might just need a good blast, how long has the engine been fitted? Does the car pull strong? Have you got anything controlling the boost? Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted September 27, 2008 Share Posted September 27, 2008 Where was the car dyno'd? Quote Link to comment Share on other sites More sharing options...
dan4 Posted September 27, 2008 Share Posted September 27, 2008 is it an na or a tt? do you have a boost leak? Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 Your boost controller is more than likely wrong as standard boost is more than that, is it a cheap one? You should be pulling more power than that but as said if you havent got a restrictor ring fitted you will be boosting way more than that and probably fitting fuel cut. As for the black smoke thats not normally a problem it might just need a good blast, how long has the engine been fitted? Does the car pull strong? Have you got anything controlling the boost? i have not got a boost controller just a gauge black smoke a pain lol and i do give it a good blast{but only on weekends cars not driven in week} engine has been in around 2-3 months car pulls strong , i put my foot down and boost gauge goes up to 0.5{no more than that} plus i might be daft saying this but whats a restrictor ring Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 Where was the car dyno'd? it was at a car show {modified nats } guy who did rolling road said my car was hitting a rev limiter Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 is it an na or a tt? do you have a boost leak? my car was a none turbo but i had a conversion to twin turbo i was wanting 350bhp plus but 318bhp is not good as im below standard 320bhp:( some mates think it might be fuel cut fault some think spark plugs, Quote Link to comment Share on other sites More sharing options...
JustGav Posted September 28, 2008 Share Posted September 28, 2008 Is it a manual or auto... The only way to REALLY tell what the true power is, is to put it on an engine dyno. Yes some rolling roads are accurate however it is also down to the operator's knowledge on gearbox drag and that sort of thing. Hence most people in the know only quote RWHP and not imaginary FWHP. Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 its a manaul maybe a uprated fuel pump will help ? Quote Link to comment Share on other sites More sharing options...
MrRalphMan Posted September 28, 2008 Share Posted September 28, 2008 Was that quoted as FWHP (Flywheel HP) or RWHP (Rear Wheel HP)? Makes a big difference as JG said. Quote Link to comment Share on other sites More sharing options...
JustGav Posted September 28, 2008 Share Posted September 28, 2008 its a manaul maybe a uprated fuel pump will help ? How? a fuel pump shouldn't make any difference WHATSOEVER provided it is up to the correct pressure. Remember your fuel pressure regulator will restrict the flow anyway, provided the pump is up to it, the rest just goes down the return pipe. Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 ok bad news cant find paper for rolling road {just looking} found other bits engine data,dynamic firing kv,dynamic kv comparison,dynamic spark duratio, Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 How? a fuel pump shouldn't make any difference WHATSOEVER provided it is up to the correct pressure. Remember your fuel pressure regulator will restrict the flow anyway, provided the pump is up to it, the rest just goes down the return pipe. cool ok Quote Link to comment Share on other sites More sharing options...
wewsupra Posted September 28, 2008 Author Share Posted September 28, 2008 (edited) just took supra for spin gear ---boost 1st --- 0.0 2nd --- 0.5 3rd --- 0.6ish {one time up road car made me change gear at 6thous revs it redlined} 4th ---0.6 ish {maybe 0.7ish} 5th run out of road tried to do 0-60 on a stop watch but kept forgeting to stop the bloody think plus had to watch what i was doing lol i gave up to wet and dangerous did get a time of 7.25 lol Edited September 28, 2008 by wewsupra (see edit history) Quote Link to comment Share on other sites More sharing options...
supradriver Posted September 28, 2008 Share Posted September 28, 2008 i didnt know you was having problems mate:( Quote Link to comment Share on other sites More sharing options...
supradriver Posted September 28, 2008 Share Posted September 28, 2008 i have not got a boost controller just a gauge black smoke a pain lol and i do give it a good blast{but only on weekends cars not driven in week} engine has been in around 2-3 months car pulls strong , i put my foot down and boost gauge goes up to 0.5{no more than that} plus i might be daft saying this but whats a restrictor ring a restrictor ring mate puts back pressure on ya turbo. stops it over spooling. Quote Link to comment Share on other sites More sharing options...
supradriver Posted September 28, 2008 Share Posted September 28, 2008 i thought the j-spec tt's were 280bhp ish and the uk tt's 325bhp??? i could be wrong Quote Link to comment Share on other sites More sharing options...
Deacon2k Posted September 29, 2008 Share Posted September 29, 2008 are you 100% sure both cats have been removed and not just the one? Quote Link to comment Share on other sites More sharing options...
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