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Discussion Starter #1
Went to the dyno last night. Can't say I'm pleased with the results but considering all the problems, I can't complain. I last dyno'd at 563 rwhp at 23 psi. This time around with the SP intake manifold and HKS 272 cams I dyno'd 604 rwhp. The car however is missing slightly and the A/F fuel on that run was around 10.8-11.0 so it could still make a little more. Not too bad though, 40 rwhp gain with intake and cams. We then tried to shoot for 30 psi. For some reason the max we could hit was 27-28 and it would fall to 26 at redline. At that boost it made 647.3 rwhp and 601.0 torque. A/F was around 11.8 at redline. It did miss once on that run. We did one run on NOS but it's hardly worth mentioning, 688 rwhp and 625 torque. That was a 100 shot direct port. The bottle was cold since I don't have a bottle heater and pressure was only 825-850, so that would explain the lackluster result, was just running way rich, too much fuel and too little NOS pressure in the lines. By the end of the night it seems like one of my plugs took a crap, since I now have a constant miss at high RPM's. As for the boost I think it's just the crappy Profec-B that can't hold boost and can't boost very high. As for the miss, beside the fact that I think I lost a plug, it seems like my coils are on the way out as well, over 90,000 miles on stock coils making this kind of power can't be good. I'll probably re-dyno in a wekk or two with new plugs, coils, bottle warmer, and maybe new boost controller or I'm just going to tighten the screw on the wastegate and try to get more boost out of this thing. Hope this all makes sense to you all.
 

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Discussion Starter #4
turbosupra,
I have nowhere to host, but if you give me your e-mail I'll scan the sheet and e-mail it to you. If anyone wants to see them, e-mail me.
 

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are you using a s-afc or gcc also what clutch do you have in your car ??
 

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Super Moderator!!ON PATROL ALL OVER!!
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thanks !
SingledSupra said:
I'm using a S-AFC and a RPS stage 3 disc and act pressure plate.
 

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I would also like to see your dyno sheets, post them here or email me [email protected] thanks alot.

As for the Profec-B not holding the boost, your probably right, I have heard it has hard time holding anything more than 27-28psi of boost.

You have a fuel system too right? Thanks
SH
T78
 

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Discussion Starter #12
SH,
I do have a fuel system. HKS fuel rail, 720 injectors, lines, dual in-tank-pumps.
MADMKIV,
I've just sold my profec-B and ordered the HKS EVC EZ.
Also got a bottle warmer and new coils. Should be nack on the dyno late this month/early next month.
 
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Your cams are too big for your turbo. 264s are pushing it - 272s are much too large. You do not need 272s until you are knocking on 800 rwhp on boost alone. Get smaller cams and you will see quicker spooling, and more boost held to redline.
 

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I wonder when someone will try some 300's :eek:

Walser said:
Your cams are too big for your turbo. 264s are pushing it - 272s are much too large. You do not need 272s until you are knocking on 800 rwhp on boost alone. Get smaller cams and you will see quicker spooling, and more boost held to redline.
 

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Egbert,
Glad to see the car is back together!! I can't wait for another ride in your new set up. Sounds like post some tuning and other issues the car will be a real beast! You see that big bust they had down at Okochobee in December? 172 arrests! I hope we can all meet up again soon and go out, seems we have all been busy getting more power but it's time to get busy racing! Eddie's car dyno'd 777RWHP with that T62-1 and 150 shot direct as well. Very impressive! Hope all is well with life outside the car. Glad to hear you are back, and have no fear, the bugs will be worked out. See you soon

Adam

BTW, how do you like the ACT preassure plate with the RPS? Is the RPS sprung? Have the flywheel or no? How does it hold up to launches? I just got the Stage 3 sprung with RPS preassure plate and am just breaking it in. Talk to you soon.
 
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