Power falls off bad around 720 HP
Oct 5, 2011, 09:42 AM
#48
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Ya the problem with the 1.15 is that it's too close to the turbo housing and the bolts and such were too hard ot get in. I know it's crazy and doesn't seem right. But that's what we tried for hours on end.
I called FP and they said nobody has done the 3794HTA in TS configuration yet and I was the first and they really had no tech support for the issues. They also sent wrong fittings thinking they would fit. This was such a pain in the *** to get to work.
I called FP and they said nobody has done the 3794HTA in TS configuration yet and I was the first and they really had no tech support for the issues. They also sent wrong fittings thinking they would fit. This was such a pain in the *** to get to work.
Last edited by Joshs EVO; Oct 5, 2011 at 11:46 AM.
Oct 5, 2011, 09:49 AM
#49
Ever since I got the head. That's what we first thought maybe we are getting some kind of weird spring issue or maybe valve float. Maybe mike at AWD can chime in if he sees this and could answer it. I'm no mechanic.
It has the standard springs that come with the BR Stage III head. So whatever come with them is what I've had on there for a while. I got the head in Feb 2009.
What I can tell you is that my sweet driving skills has made the car rap put and bounce off the rev limiter a few times so maybe it damaged them then. Again this is due to my awesome (see crappy) driving skills.
It has the standard springs that come with the BR Stage III head. So whatever come with them is what I've had on there for a while. I got the head in Feb 2009.
What I can tell you is that my sweet driving skills has made the car rap put and bounce off the rev limiter a few times so maybe it damaged them then. Again this is due to my awesome (see crappy) driving skills.
I'm pretty sure Buschur heads come with Supertech Duals standard which should be plenty of spring, unless they are just worn out due to fatigue.
Oct 5, 2011, 02:21 PM
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sounds like a valve float issue, have you tried to dyno on less boost to see if the power drops off yet. but if you want help from the pros you should really post a dyno graph it will keep everyone from guessing. and you will find your answer quick.
Oct 5, 2011, 05:54 PM
#52
I have used: Crowers, HKS, Manley, Kiggly's, Supertech, Ferrea and I am sure others I can't recall. Supertech duals have changed rates, unknown to use multiple times. It has, in the past, left me in some pretty **** poor situations. They offer MULTIPLE sets of dual springs, even today. With all that said, the customer service from them has been exceptional AND we currently use Supertech's.
Without a dyno chart/ignition map it's hard for me to actually help. Valve float is for sure an issue in EVO's and is fixed with a good quality spring. Since that is our head on the car and I believe it's been said it's from 2009, I'd say there is a good chance it's springs, I'd replace them with the new Supertech duals we are using, I believe their current spring is the BEST ON THE MARKET.
I have nothing else to give to this thread.
Without a dyno chart/ignition map it's hard for me to actually help. Valve float is for sure an issue in EVO's and is fixed with a good quality spring. Since that is our head on the car and I believe it's been said it's from 2009, I'd say there is a good chance it's springs, I'd replace them with the new Supertech duals we are using, I believe their current spring is the BEST ON THE MARKET.
I have nothing else to give to this thread.
Oct 5, 2011, 08:29 PM
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<- Has a set of Kiggly Springs in stock& located in Lakewood in case you forgot.
Shawn's Evo had the same problem before we installed our CNC head with Kiggly's & Kelford 280's.
Shawn's Evo had the same problem before we installed our CNC head with Kiggly's & Kelford 280's.
Oct 5, 2011, 09:04 PM
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Thanks Lucas. I will talk to Tobz to see what he wants to do and I will keep you in mind and the offer you gave me. It would be nice to have them local for a quick turn around.
Oct 6, 2011, 07:24 AM
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Here is a graph from Shawn's car last year. Only changes we made was our CNC head, kiggly springs, kiggly hla, +1mm ferrea valves, kelford cams, 3" upper I/C & ETS 4" core.
Hope this helps
Hope this helps
Oct 6, 2011, 11:23 AM
#59
You added lots of power changing parts. And to be honest as little as josh's car has spent actually running and driving the last few years I highly doubt his springs are already worn out. But if the supertech duels have been redesigned or changed in 2 years already maybe its the cheapest thing to try first.
Oct 6, 2011, 11:29 AM
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Only changes? You added lots of power changing parts.
And to be honest as little as josh's car has spent actually running and driving the last few years I highly doubt his springs are already worn out. But if the supertech duels have been redesigned or changed in 2 years already maybe its the cheapest thing to try first.
You added lots of power changing parts. And to be honest as little as josh's car has spent actually running and driving the last few years I highly doubt his springs are already worn out. But if the supertech duels have been redesigned or changed in 2 years already maybe its the cheapest thing to try first.