New Dyno Number 426rwhp @ 13.5pounds
05-18-2006, 06:34 PM
#11
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Your 2nd dyno chart is weird. It's almost like you lost compression in the middle of that run...... it looks like Ray tunes it pretty aggressive with the a/f. was it on pump gas or race gas?
Steve I don't know for certain but I assume my peak on that 430hp run was at 16psi. From what I do know the boost control was set for 15psi. Ray said it spiked to 16. So I just say it's 16psi.
So here is that one dyno.
Then this other at 424hp we did about three weeks later. This dyno run was made after the car was found to have low compression on the rear and now the engine is out.
Originally Posted by Fd3BOOST' post='819738' date='May 17 2006, 12:30 PM
Steve I don't know for certain but I assume my peak on that 430hp run was at 16psi. From what I do know the boost control was set for 15psi. Ray said it spiked to 16. So I just say it's 16psi.
So here is that one dyno.
Then this other at 424hp we did about three weeks later. This dyno run was made after the car was found to have low compression on the rear and now the engine is out.
05-19-2006, 02:55 PM
#12
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Yea like I said the motor was broke so I am not surprised it looks that way. I am surprised it held to gether so long and made that kind of power with two broken corner seals and a broken apex seal.
I don't know. You called showoff's 11.2:1 A/F conservative but you call Rays 11.5:1 aggressive. Seems like pretty close to the same thing to me but I'm no expert.
I don't know. You called showoff's 11.2:1 A/F conservative but you call Rays 11.5:1 aggressive. Seems like pretty close to the same thing to me but I'm no expert.
05-21-2006, 05:09 AM
#15
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Originally Posted by pianoprodigy' post='820182' date='May 20 2006, 11:37 AM
AFRs @ peak power are almost 12:1 which is pretty lean, IMO.
I don't know which one your talking about for sure but if it is the 430hp dyno i posted the a/f reading was off. A/F's on that were in the mid 11's.
Glad to hear you got your car back btw.
05-22-2006, 04:44 PM
#16
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the first dyno chart was around 11.5-11.6:1. That's fine but I would consider that at the edge of pump gas tuning(about .3-.5 a/f margin). 12.0:1 is definately at the edge of detonation on pump gas. However, you might be able to get away with it since you guys run 94 octane fuel.
I do think that the a/f numbers seem correct on the 2nd chart since it does go all the way down to 11:1 at mid range and level off to 12:1 once it hits max boost.
Don't get me wrong, I'm not questioning Ray's tuning ability but from looking at the 2nd dyno chart, I think that the engine was hurt during the pull (which is why I thought it was kinda strange).
I don't know which one your talking about for sure but if it is the 430hp dyno i posted the a/f reading was off. A/F's on that were in the mid 11's.
Glad to hear you got your car back btw.
I do think that the a/f numbers seem correct on the 2nd chart since it does go all the way down to 11:1 at mid range and level off to 12:1 once it hits max boost.
Don't get me wrong, I'm not questioning Ray's tuning ability but from looking at the 2nd dyno chart, I think that the engine was hurt during the pull (which is why I thought it was kinda strange).
Originally Posted by Fd3BOOST' post='820266' date='May 21 2006, 02:09 AM
I don't know which one your talking about for sure but if it is the 430hp dyno i posted the a/f reading was off. A/F's on that were in the mid 11's.
Glad to hear you got your car back btw.
05-26-2006, 01:05 PM
#17
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Originally Posted by vosko' post='820219' date='May 20 2006, 09:37 PM
treceb has my old T78 on his stock engine FD and it spools pretty damn quick, i think the tuning had alot to do with it. when it was on my old FD it was laggy as hell
05-27-2006, 05:42 AM
#18
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Originally Posted by pluto' post='820541' date='May 22 2006, 01:44 PM
tDon't get me wrong, I'm not questioning Ray's tuning ability but from looking at the 2nd dyno chart, I think that the engine was hurt during the pull (which is why I thought it was kinda strange).
Well, yes you are. Your insinuating that Ray broke my engine on the dyno. Which is false. It was broke prior.
Ray and I both compression tested the engine right before strapping in onto the dyno and the compression was low before the pull. Like I said it was my fault for crossing my coil harness connectors and driving that way for a month or better. All well before getting my car up to PFSupercars to have the kinks worked out.
I still drove the car over three weeks even after that second dyno sheet before finally getting off my *** to pull the engine out. With the way in which the internals looked and some driving experiences I had with it. It does not surprise me that it would lead you to believe that. It was a strange motor after it broke. Sometimes would show signs of damage other times it would run its *** off and you would never know it was broke.
and I never said we were running pump gas.
05-28-2006, 07:06 PM
#19
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Posts: 98
No, I would say that it was tuning related if I think it was from his tuning. However, maybe your engine was very weak to begin with and somehow gotten worse in that pull is what I was referring to. I don't have any reason to talk bad about Ray and his ability in tuning cars. I have seen his ET at the track and talked to him in person a few times. I feel that He's a very standup and nice person.
There're so many methods in tuning and target A/F ratio and timing to go by. Some likes to tune lean a/f with less timing while others tune rich a/f and more timing.
Like I said, take it as you wish but my comment wasn't directed against Ray.
Maybe if you didn't post the 2nd plot, I wouldn't have asked the question. As for your comment on not running race gas, I could only assume that it was done on pump gas since 15-16psi is low enough to run pump w/o any worries.
Well, yes you are. Your insinuating that Ray broke my engine on the dyno. Which is false. It was broke prior.
Ray and I both compression tested the engine right before strapping in onto the dyno and the compression was low before the pull. Like I said it was my fault for crossing my coil harness connectors and driving that way for a month or better. All well before getting my car up to PFSupercars to have the kinks worked out.
I still drove the car over three weeks even after that second dyno sheet before finally getting off my *** to pull the engine out. With the way in which the internals looked and some driving experiences I had with it. It does not surprise me that it would lead you to believe that. It was a strange motor after it broke. Sometimes would show signs of damage other times it would run its *** off and you would never know it was broke.
and I never said we were running pump gas.
There're so many methods in tuning and target A/F ratio and timing to go by. Some likes to tune lean a/f with less timing while others tune rich a/f and more timing.
Like I said, take it as you wish but my comment wasn't directed against Ray.
Maybe if you didn't post the 2nd plot, I wouldn't have asked the question. As for your comment on not running race gas, I could only assume that it was done on pump gas since 15-16psi is low enough to run pump w/o any worries.
Originally Posted by Fd3BOOST' post='821333' date='May 27 2006, 02:42 AM
Well, yes you are. Your insinuating that Ray broke my engine on the dyno. Which is false. It was broke prior.
Ray and I both compression tested the engine right before strapping in onto the dyno and the compression was low before the pull. Like I said it was my fault for crossing my coil harness connectors and driving that way for a month or better. All well before getting my car up to PFSupercars to have the kinks worked out.
I still drove the car over three weeks even after that second dyno sheet before finally getting off my *** to pull the engine out. With the way in which the internals looked and some driving experiences I had with it. It does not surprise me that it would lead you to believe that. It was a strange motor after it broke. Sometimes would show signs of damage other times it would run its *** off and you would never know it was broke.
and I never said we were running pump gas.
05-30-2006, 08:51 PM
#20
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It's all good Steve. We are all one big happy disfunctional grease monkey family. Your comment about it being hurt before hand is right on the money. I also did not mean to imply that you had a beef with Ray or anything like that. I am sorry if my post came off that way. I only read it that you thought my engine was somehow damaged by Ray's tuning. I only wanted to make it perfectly clear that it was damaged before Ray got involved. That's all.