aspec gt3540r
07-11-07, 05:52 PM
#26
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keep in mind that the correction factor was extremely high due to the high altitude. I think it was 1.23. The numbers seemed slightly inflated and I told Candice that it might be off a little. Uncorrected hp at 23psi was 414rwhp? I maxed out the flow on the turbo, it wasn't holding anymore boost and was slowly dropping to 21ish psi towards the higher rpm.
i thought he made those numbers at 15 psi, now its 23?
07-12-07, 12:22 AM
#28
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GOD ******* DAM. Great there goes my Sequential setup. All this time rx7 store had been preaching those numbers im thinking those are street ported motors. You just made 400+ on a stcok block?? Im sold. Thanks for the thread!
05-27-09, 04:58 PM
#37
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Just a little update
Steve Kan built me a street ported motor and came out to tune it again. Still using the aspec kit.
We made (corrected) :
423whp & 340tq @ 16psi
461whp & 384tq @ 16psi on c16
505whp & 446tq @ ~20psi on c16
The "high boost" setting we really just tried to get everything out of the turbo. It had compressor surge around 4500-5000rpm then made it's way up to 25psi and dropped very quickly and held at 20psi. It is definitely a stretch to make 500whp out of this turbo lol.
Steve Kan built me a street ported motor and came out to tune it again. Still using the aspec kit.
We made (corrected) :
423whp & 340tq @ 16psi
461whp & 384tq @ 16psi on c16
505whp & 446tq @ ~20psi on c16
The "high boost" setting we really just tried to get everything out of the turbo. It had compressor surge around 4500-5000rpm then made it's way up to 25psi and dropped very quickly and held at 20psi. It is definitely a stretch to make 500whp out of this turbo lol.
05-27-09, 07:14 PM
#38
Original Gangster/Rotary!
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Do you have dyno sheets or vids? Pretty strong numbers. 3 inch dp?
What kind of spool/response are you seeing on the street?
Btw, I recently turned the boost up to 20 psi on my 500R and the car feels strong and wants more......evidently the larger compressor wheel makes a big difference.
What kind of spool/response are you seeing on the street?
Btw, I recently turned the boost up to 20 psi on my 500R and the car feels strong and wants more......evidently the larger compressor wheel makes a big difference.
Last edited by GoodfellaFD3S; 05-27-09 at 07:23 PM.
05-27-09, 08:23 PM
#39
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Sure, here they are, and yes 3" dp.
On high boost the increase of 300whp over a 2000rpm span makes it really hard to hook up. It is very fun on low boost still.
On high boost the increase of 300whp over a 2000rpm span makes it really hard to hook up. It is very fun on low boost still.
05-27-09, 10:08 PM
#43
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Here is a video of the boost gauge during the high boost pull
http://www.flickr.com/photos/38863892@N04/3572266782/
http://www.flickr.com/photos/38863892@N04/3572266782/
05-28-09, 09:36 AM
#45
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If you look at the a/f on the dyno graph and what my gauge was saying in the video (during the 505whp pull) it does show that it leaned out a little on both, but steve was watching the a/f reading from the dyno not my gauge and I believe the dyno was only showing maybe 12.2 A little lean but relatively safe on c16.
05-28-09, 05:32 PM
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Just my .02, your a/f ratio is too lean up top. Whatever your tuning at, ie..12.5 on your video, when your on the street it will be .5 leaner. So you'll be running at 13.0, thats not good. You'll either detonate or warp your seals. Get a/i and run 50/50 on the same tune and you'll be safe.
05-29-09, 12:53 PM
#49
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Just my .02, your a/f ratio is too lean up top. Whatever your tuning at, ie..12.5 on your video, when your on the street it will be .5 leaner. So you'll be running at 13.0, thats not good. You'll either detonate or warp your seals. Get a/i and run 50/50 on the same tune and you'll be safe.
05-30-09, 07:25 PM
#50
Racing Rotary Since 1983
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first off congrats.
i just spent the day on the dyno... 23 4th gear pulls.
i run 93 octane pump gas and methanol AI.
i made 506 SAE at approx 20 psi. no knock. no drama. we were out of spring or i would have tuned out at 27 psi.
howard coleman
i just spent the day on the dyno... 23 4th gear pulls.
i run 93 octane pump gas and methanol AI.
i made 506 SAE at approx 20 psi. no knock. no drama. we were out of spring or i would have tuned out at 27 psi.
howard coleman