Highest Horsepower dynos for SC Turbo and nitrous - post them here
08-31-2009, 07:14 PM
#201
Just about every dyno run where someone is pushing their turbo I hear the words "boost controller was not doing what it should" "boost dropped off after x rpm etc etc "
You may have put the information out there but nobody seems to be utilising it at this time .
Last edited by Brettus; 08-31-2009 at 07:51 PM.
09-06-2009, 06:10 PM
#212
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333, dayum!
nice job Brettus
nice job Brettus
09-06-2009, 11:06 PM
#219
OK - here it is
See red line at bottom of dyno chart for various psi levels - seems I was at a much lower psi than i thought at high rpm . Trying to watch the guage and drive does not work obviously . Note that as the boost climbs it suddenly drops away - this is caused by the boost controller "overboost" function kicking in .
Runnig with :
Upgraded greddy turbo
Hymee protuner
stock coils (dwell increased by 10%)
Stock Greddy intercooler
Auto exe leads
Custom cold air intake
Stock gutted midpipe
Trust Ti catback
New rx7 plugs
Blue 480cc injectors in P2 position
Some things wot i learned :
1/ Chicken - no way could your dyno have been at only 13.5psi . I ran at 13psi up till 5500rpm and could not get anywhere near your torque numbers .
2/ My intercooler is a definate restriction at this power level . I took out my 2 stage controller gadget and lost 3psi at the turbo and only 0.5 psi at the manifold while losing 6hp peak at the wheels. With a better intercooler 350whp is definately within reach .
Could this turbo make over 300 lb/ft of torque ? I believe that would not be a problem . I was unwilling to wind the boost up anymore than it was because I was at 200% load and that is as far as my tuning table goes at the moment .
See red line at bottom of dyno chart for various psi levels - seems I was at a much lower psi than i thought at high rpm . Trying to watch the guage and drive does not work obviously . Note that as the boost climbs it suddenly drops away - this is caused by the boost controller "overboost" function kicking in .
Runnig with :
Upgraded greddy turbo
Hymee protuner
stock coils (dwell increased by 10%)
Stock Greddy intercooler
Auto exe leads
Custom cold air intake
Stock gutted midpipe
Trust Ti catback
New rx7 plugs
Blue 480cc injectors in P2 position
Some things wot i learned :
1/ Chicken - no way could your dyno have been at only 13.5psi . I ran at 13psi up till 5500rpm and could not get anywhere near your torque numbers .
2/ My intercooler is a definate restriction at this power level . I took out my 2 stage controller gadget and lost 3psi at the turbo and only 0.5 psi at the manifold while losing 6hp peak at the wheels. With a better intercooler 350whp is definately within reach .
Could this turbo make over 300 lb/ft of torque ? I believe that would not be a problem . I was unwilling to wind the boost up anymore than it was because I was at 200% load and that is as far as my tuning table goes at the moment .
Last edited by Brettus; 09-06-2009 at 11:49 PM.
09-06-2009, 11:18 PM
#220
That torque curve is flat as hell man, very nice
LOL what can I say about the boost- as you said watching boost and driving/tuning etc is difficult. I just know my ebc recalls peak boost and it never saved anything over 13.8psi. I really wish the dyno had their pressure sensor working...
I made significantly more torque but you did make 3-rwhp more than me, and our turbos are vastly different.
LOL what can I say about the boost- as you said watching boost and driving/tuning etc is difficult. I just know my ebc recalls peak boost and it never saved anything over 13.8psi. I really wish the dyno had their pressure sensor working...
I made significantly more torque but you did make 3-rwhp more than me, and our turbos are vastly different.
09-06-2009, 11:37 PM
#221
/\ All the other pulls were around 325whp but I chose this one to post for some reason LOL
New chart is up on first page .
Thanks for all the encouraging comments above (Sorry I don't know how to do the multiquote thing )
New chart is up on first page .
Thanks for all the encouraging comments above (Sorry I don't know how to do the multiquote thing )
Last edited by Brettus; 09-07-2009 at 12:44 AM.
09-07-2009, 04:22 AM
#222
You Dumbass!!!
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If the turbos are different (thought you both had MM upgrade?) then that explains a lot.
I am trying to determine the reason for that myself.
Im thinking Gearing, trans or diff (trans in particular)
Chicken? have you changed any gearing in your car?
(Disclaimer: I am about to mention something I know little about lol).
Back-pressure: I've often heard that this affects torque. True or not, I don't know, and tbh I doubt it. but I do notice he is running a fairly straight HKS Hi Power Single exhaust while most are running Duals. Didn't notice if he had any special headers but if he does, that and the exhaust might have something to do with it, but someone with more knowledge on the subject can answer that.
Supporting mods: Wafer has a lot of them
https://www.rx8club.com/rx-8-multimedia-photo-gallery-6/finally-chickenwafers-rx-8-a-162059/
This list was written almost a year ago, so I'm sure there is more by now.
Lastly, the tune. Kane just might be that good.
I am trying to determine the reason for that myself.
Im thinking Gearing, trans or diff (trans in particular)
Chicken? have you changed any gearing in your car?
(Disclaimer: I am about to mention something I know little about lol).
Back-pressure: I've often heard that this affects torque. True or not, I don't know, and tbh I doubt it. but I do notice he is running a fairly straight HKS Hi Power Single exhaust while most are running Duals. Didn't notice if he had any special headers but if he does, that and the exhaust might have something to do with it, but someone with more knowledge on the subject can answer that.
Supporting mods: Wafer has a lot of them
https://www.rx8club.com/rx-8-multimedia-photo-gallery-6/finally-chickenwafers-rx-8-a-162059/
This list was written almost a year ago, so I'm sure there is more by now.
Lastly, the tune. Kane just might be that good.
09-07-2009, 05:21 AM
#223
none of the above . Chicken turned his boost controller up further than I was game to do - simple as that .
A better question would be : how come I made more power at either end of the rev range ?
A better question would be : how come I made more power at either end of the rev range ?
Last edited by Brettus; 09-07-2009 at 05:27 AM.
09-07-2009, 11:56 AM
#225
If the turbos are different (thought you both had MM upgrade?) then that explains a lot.
I am trying to determine the reason for that myself.
Im thinking Gearing, trans or diff (trans in particular)
Chicken? have you changed any gearing in your car?
(Disclaimer: I am about to mention something I know little about lol).
Back-pressure: I've often heard that this affects torque. True or not, I don't know, and tbh I doubt it. but I do notice he is running a fairly straight HKS Hi Power Single exhaust while most are running Duals. Didn't notice if he had any special headers but if he does, that and the exhaust might have something to do with it, but someone with more knowledge on the subject can answer that.
Supporting mods: Wafer has a lot of them
https://www.rx8club.com/showthread.php?t=162059
This list was written almost a year ago, so I'm sure there is more by now.
Lastly, the tune. Kane just might be that good.
I am trying to determine the reason for that myself.
Im thinking Gearing, trans or diff (trans in particular)
Chicken? have you changed any gearing in your car?
(Disclaimer: I am about to mention something I know little about lol).
Back-pressure: I've often heard that this affects torque. True or not, I don't know, and tbh I doubt it. but I do notice he is running a fairly straight HKS Hi Power Single exhaust while most are running Duals. Didn't notice if he had any special headers but if he does, that and the exhaust might have something to do with it, but someone with more knowledge on the subject can answer that.
Supporting mods: Wafer has a lot of them
https://www.rx8club.com/showthread.php?t=162059
This list was written almost a year ago, so I'm sure there is more by now.
Lastly, the tune. Kane just might be that good.
they both have the same turbo manifolds if that is what you are talking about.
the only other difference like you said is dual or single exhaust and also different midpipes.
sorry to sound like a dick, but that wasn't really my intention.