Single Turbo RX-7's Questions about all aspects of single turbo setups.

NEW DYNO NUMBERS ***603 whp @27psi Uncorrected***

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Old Feb 5, 2006 | 06:16 AM
  #26  
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Originally Posted by LUPE
Steve Kan tuned my car this morning. We tried to turn the boost up to 30+ psi but my Hallman boost controller wouldn't go any higher

This was done on a Dyna Pac dyno.

603 whp @ 27.5 psi. 500 rwtq.

I also weight the car on the scales today and it weighed in at 2,296 lbs.
which vacuum are you running ur psi from the boost controller off of. maybe u have a boost leak or pressure drop of 2.5 psi!

so the wastegate is reading the pressure right off the turbo, and so it opens before u want it to just a tad. Technically wouldnt u want the wastegate to open based on how much pressure the manifold is seeing right since thats whats goin into the motor and theres no way it wud leak any psi once its already in there. im probably wrong, since u are alreayd close to already almost maxing out the turbo right? so it wud end up blowing hot air when the manifold sees 30 psi cause the turbo could be blowing more then that.

I noticed when i switched my line going from the turbo (thanks to dubulup for clarifing my theory, and i trust what he thinks) to the manifold, i started boosting 9 psi! so that whole time i thot i had a 5-6 psi spring in there, i was wrong. it turns out i had a 10, and i just bought a 10 from hks, so good thing i didnt install it yet and tried that first, cause that saved me 50 bux. I sent it back and got a 1 bar spring. waiting til iget a wideband o2 to drop in the 14ner. Im pretty sure my leak is comin from the bov even tho i replaced the o-ring still.

i dunno its late im just jabering on
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Old Feb 5, 2006 | 07:47 AM
  #27  
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Originally Posted by crispeed
Congrats Eric.
I like your glowing red neon turbo lite!
I've hold it for a couple of minutes at full power and seen the mid pipe glowing red also
Damm that **** is light. Should do some good #'s at the track.
On some of the 570whp pulls, it was tuned at 12.8 That's when it was glowing the most.

Last pull 603whp it's right at 11.7 afr.
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Old Feb 5, 2006 | 07:50 AM
  #28  
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Originally Posted by LUPE
On some of the 570whp pulls, it was tuned at 12.8 That's when it was glowing the most.

Last pull 603whp it's right at 11.7 afr.
We wouldn't know. We don't have a DYNO SHEET to look at!! I think you made 503rwhp
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Old Feb 5, 2006 | 07:51 AM
  #29  
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Originally Posted by silvr94r2
Congrats Eric!!! Nice #'s! I really really really like the look of your car....i mean really really like Now you just need to put a good auto behind that biotch and go beat the hell outta some Supra's. With as light as you are it shouldn't be a problem with the auto. I'm hoping to be somewhere in the ballpark of your power and weight.
Hey thanks, I have no option other than switching to a auto

I'm light but I still have radio/door panels, carpet, headliner, dash, power windows and locks.

I'll post some more neat pictures and videos taken from yesterday.
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Old Feb 5, 2006 | 07:53 AM
  #30  
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Originally Posted by ErnieT
We wouldn't know. We don't have a DYNO SHEET to look at!! I think you made 503rwhp
We're going back to the dyno today (More cars to tune). I'm going to post the sheet from there. I'll just have him cut me a disk so I can post it up. No corrections factors or bs like last time.
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Old Feb 5, 2006 | 07:54 AM
  #31  
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Originally Posted by BNA_ELLIS
????? stock exhaust ports too ?
I have have a street port and exhaust ports. This was done on VP C16 of course.
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Old Feb 5, 2006 | 07:57 AM
  #32  
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Originally Posted by PhatManBUD
which vacuum are you running ur psi from the boost controller off of. maybe u have a boost leak or pressure drop of 2.5 psi!

so the wastegate is reading the pressure right off the turbo, and so it opens before u want it to just a tad. Technically wouldnt u want the wastegate to open based on how much pressure the manifold is seeing right since thats whats goin into the motor and theres no way it wud leak any psi once its already in there. im probably wrong, since u are alreayd close to already almost maxing out the turbo right? so it wud end up blowing hot air when the manifold sees 30 psi cause the turbo could be blowing more then that.

I noticed when i switched my line going from the turbo (thanks to dubulup for clarifing my theory, and i trust what he thinks) to the manifold, i started boosting 9 psi! so that whole time i thot i had a 5-6 psi spring in there, i was wrong. it turns out i had a 10, and i just bought a 10 from hks, so good thing i didnt install it yet and tried that first, cause that saved me 50 bux. I sent it back and got a 1 bar spring. waiting til iget a wideband o2 to drop in the 14ner. Im pretty sure my leak is comin from the bov even tho i replaced the o-ring still.

i dunno its late im just jabering on
The spring in my boost controller was too soft. We tried using a spring some a transmission and it was just too soft. Boost shot up to 35-37psi 5-6 times.

We then took the spring that came in the boost controller and stretched the hell out of it and even made a spacer for it so I can could get a few more psi. We were desperate.
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Old Feb 5, 2006 | 08:28 AM
  #33  
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congrats
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Old Feb 5, 2006 | 09:36 AM
  #34  
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Going back to the dyno now,

hopefully this won't be locked down before I get back
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Old Feb 5, 2006 | 09:52 AM
  #35  
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Very nice #s, that is a boatload of hp.

I'd be curious to see what you make on a dynojet----my sig #s were on a dynapac as well, so I wondering about the correction factor.
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Old Feb 5, 2006 | 10:01 AM
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Originally Posted by LUPE
We're going back to the dyno today (More cars to tune). I'm going to post the sheet from there. I'll just have him cut me a disk so I can post it up. No corrections factors or bs like last time.
Im just bustin your *****. Good luck on that next 43rwhp LOL...
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Old Feb 5, 2006 | 11:32 AM
  #37  
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Originally Posted by LUPE
No corrections factors or bs like last time.
All that does not matter. That's just for bragging rights.
The only # that matters is the one at the end of the 1/4.
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Old Feb 5, 2006 | 01:22 PM
  #38  
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nice numbers! and yeah post up the dyno
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Old Feb 5, 2006 | 01:38 PM
  #39  
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Congrats Eric! Glad to see such great numbers. Are you guys putting your car back on the dyno today? Can't wait to see your dyno sheets and videos.

Zach
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Old Feb 5, 2006 | 02:07 PM
  #40  
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Hey Eric, when/if you sell that mani and turbo... I got dibs if someone else already hasn't asked for it.

=)
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Old Feb 5, 2006 | 04:41 PM
  #41  
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603 whp and 500 wheel torque



Last edited by LUPE; Feb 5, 2006 at 04:43 PM.
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Old Feb 5, 2006 | 05:04 PM
  #42  
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no ****...! nice!
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Old Feb 5, 2006 | 05:10 PM
  #43  
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Originally Posted by crispeed
All that does not matter. That's just for bragging rights.
The only # that matters is the one at the end of the 1/4.
You're exactly right but numbers are always fun to toss around....
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Old Feb 5, 2006 | 05:22 PM
  #44  
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i think those numbers do matter cause if ur not at a drag strip, and from a roll with that hp and weight its hands down you win!
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Old Feb 5, 2006 | 05:29 PM
  #45  
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and yes, why dont u share what u did to get the weight down that low, its secret information that shudnt be kept from other 7 owners! nothing u need to worry about, we all must help each other with advice to defeat other cars. that way the 7 will never lose!
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Old Feb 5, 2006 | 08:53 PM
  #46  
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Congrats!

I remember seeing your car at the rotary revolution. Nice! Spool sounded awesome. Must be fun to drive
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Old Feb 5, 2006 | 10:57 PM
  #47  
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Congrats, Nice pictures and very nice numbers.

Would you want to street port that thing some time? I would like to see the jump in dyno numbers with street porting at those boost levels.

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Old Feb 5, 2006 | 11:08 PM
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hot ****
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Old Feb 5, 2006 | 11:40 PM
  #49  
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Originally Posted by CowsniperRX7
hot ****
Hey, oyur car is no slouch now either!
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Old Feb 6, 2006 | 12:39 AM
  #50  
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Originally Posted by LUPE
603 whp and 500 wheel torque


Why does the dyno sheet you're showing say FLYWHEEL Horsepower and not RWHP? Does this dyno estimate drivetrain loss and figure it into the calculation? I just want to be sure.
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