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FP 71HTA / S2's / E85 / 459 & 402 @ 24PSI / RRE "Sam" Tuned

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Old Feb 9, 2018, 12:50 PM
  #61  
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What does this do and how do we do this?

I found this: https://www.evolutionm.net/forums/ev...ng-walbro.html

Originally Posted by e_kobz
Try punching the relief spring.....
Last edited by 2006EvoIXer; Feb 9, 2018 at 01:04 PM.
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Old Feb 9, 2018, 01:13 PM
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Originally Posted by 2006EvoIXer
What does this do and how do we do this?

I found this: https://www.evolutionm.net/forums/ev...ng-walbro.html
Tscomp has an info page about it on his website
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Old Feb 9, 2018, 01:21 PM
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Originally Posted by 2006EvoIXer
I have a HFC with a Perrin muffler and with MIVEC tuning, my car hits 420 ft-lbs of torque at 3,700 rpm. With 3" Straight pipe and dump tube, you should hit it earlier. Maybe 3500rpm?
Definitely not going for dumps. Trying to build the lightest possible exhaust while remaining as quiet as possible. The exhaust that is coming off my car now weighs close to 60lbs. Trying to get that down to around 20lbs or so with a couple resonators and an aluminum can out the back. I have someone who is doing it and told me they shouldn't have a problem.
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Old Feb 9, 2018, 01:26 PM
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Just a heads up for those who modified their Walbro 255 relief valve, see post #61:

https://www.evolutionm.net/forums/ev...272-e85-5.html


Originally Posted by e_kobz
Tscomp has an info page about it on his website
Found it! Thx!
https://www.evolutionm.net/forums/ev...s-272-e85.html
Last edited by 2006EvoIXer; Feb 9, 2018 at 04:00 PM.
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Old Feb 9, 2018, 08:13 PM
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Nice numbers
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Old Feb 10, 2018, 04:28 AM
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Dope numbers, i have mostly the same mods but i have cosworth m2s and the muse o2 dump. Gonna be on 93oct. Im being hopeful for 400whp. I think its very possible now. Thanks dor sharing
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Old Feb 10, 2018, 09:39 AM
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Originally Posted by MinusPrevious
By the way, did you also upgrade your head studs while your head was off? And HLA Pressure Regulator for insurance?

Yes, ARP's are in there. Ive seen that Kiggly part. RRE did not recommend, otherwise, I would likely have added that
Before getting tuned I added a Kiggly HLA and Sam thought it was a worth while piece. Is there something in your setup that negates the benefit of the HLA?
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Old Feb 10, 2018, 03:00 PM
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Originally Posted by iD33


Before getting tuned I added a Kiggly HLA and Sam thought it was a worth while piece. Is there something in your setup that negates the benefit of the HLA?
Really didnt get too much in the way of suggestions. Gus or Robert didnt mention it. Gus initially recommended the S1's but after talking w/Robert & searching the forum, I decided the S2's w/the stock turbo. Then, I decided to roll in w/the 71HTA

If Gus or Robert had suggested the HLA, I certainly would have done it. I took their advice on the head re-build (the springs, retainers, valve guides, seals etc)

in any event, im a bit pissed on a few details about the rework which I will discuss w/Gus on Monday

Today, I detailed the engine bay and reinstalled all the bits I removed (wing, interior pieces, harnesses etc.)

I buzzed it around the back roads & got on it. Certainly can feel that the rev range is much higher. I can still lean on it after 7K & it pulls hard
Last edited by MinusPrevious; Feb 10, 2018 at 03:10 PM.
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Old Feb 10, 2018, 03:13 PM
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Dude I can relate, goes from mild to wild so quickly. Best of luck getting the issues ironed out.
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Old Feb 10, 2018, 05:18 PM
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Good news is that it is super easy to install...

Just take off valve cover, and it is 3 bolts iirc
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Old Feb 11, 2018, 08:30 AM
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Put some seat time in yesterday & burned up some ethanol.

The 71HTA w/the S2's just rips & pulls hard into the 7K region

BTW, The S2 idle is just addicting
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Old Feb 11, 2018, 12:07 PM
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The idle is driving me nuts. I get every Civic SI, Accords (wtf?), 350Z/370Z/G35/G37, Scions, and FR-S/BRZs constantly cutting me off to get my attention. It was fun to tell them to buzz off (revving up to their windows and shift so they can hear turbo and BOV) for a while, but now, I just ignore them. Not worth my gas to shut them up.

Although, I still love it when Scat Packs pick on me

Originally Posted by MinusPrevious
Put some seat time in yesterday & burned up some ethanol.

The 71HTA w/the S2's just rips & pulls hard into the 7K region

BTW, The S2 idle is just addicting
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Old Feb 11, 2018, 12:11 PM
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What clutch do you have? Are you still on your stock clutch? With the 2-step, I smoked my stocker in 7 launches. I had 60k freeway miles with my engine mostly stock before making this much torque. This is too much power for stock clutch to handle.
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Old Feb 11, 2018, 12:36 PM
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Any need or is will to trade for a T4 borg Warner s366 turbo
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Old Feb 12, 2018, 08:40 AM
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This turbo isn't a twin scroll. I love how twin scroll works and won't trade that on my evo.

Originally Posted by _Logan2
Any need or is will to trade for a T4 borg Warner s366 turbo
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