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-   -   400hp on pump gas (https://www.ft86club.com/forums/showthread.php?t=59784)

woode 03-03-2014 09:37 PM

400hp on pump gas
 
:burnrubber:
[ame="https://www.youtube.com/watch?v=BQYd4abTsq4"]Subaru BRZ Turbo 412hp Dyno - YouTube[/ame]

I was making 366hp/278tq at 16psi prior using a manual boost controller. I felt like I was getting some inconsistent boost sometimes, so I switched to a COBB 3 port electric boost solenoid. This allows for the ECU to control the boost, and in turn allowing for different levels of boost on different maps. The boost also builds a little quicker now.

Currently,
Map 1: ~7psi, 267hp / 204tq
Map 2: ~21psi, 412hp / 308tq

Garrett T3/T4 .60 trim
UEL manifold
2.5" exhaust

It starts building boost around 3-3.5k. It hits 10psi by 4k, 20psi by 5k.

R/T Tuning (vendor here) in PA has done all the tuning and worked out a lot of the hiccups associated with this setup. I can't say enough good things about these guys. They kick ass.

The weather isn't letting me really drive it hard since the pavement is so cold. I made a couple pulls in 5th gear (where I had some traction) and to say it is fast would be an understatement..

I am building a shortblock this summer so that I can run more boost more safely. Hopefully some well tested cams will be out by then so I can play with them as well.
Obviously this is pushing it with these motors. (21psi, pump gas, 400hp, stock internals...)

johnnyb305mia 03-03-2014 09:40 PM

:eyebulge: enjoy sir!

Frs300 03-03-2014 09:40 PM

Impressive is all i can say

Jesse@JDLAutodesign 03-03-2014 09:41 PM

Awesome!

mrk1 03-03-2014 09:43 PM

Sweet, I don't have e85 here so it's great to see someone else staying on pump! What compression are you going with on the built block?

woode 03-03-2014 09:48 PM

Quote:

Originally Posted by mrk1 (Post 1572195)
Sweet, I don't have e85 here so it's great to see someone else staying on pump! What compression are you going with on the built block?

I haven't made my mind up. To be honest, I want to stay as high of compression as possible. I will probably just bump it down a little bit, maybe 11.5. The bigger reason for building it is the switch to forged pistons/rods.

My "goal" is to have a powerband of somewhere in the range of 5-8k rpm and hit at least 500hp on pump gas. Obviously lots of changes will be happening to her for that to happen.

pixel67 03-03-2014 09:55 PM

Impressive!

Sent from my Nexus 7 using Tapatalk

slicktop 03-03-2014 10:12 PM

Occam's Razor if I may say so.

DriftEightSix 03-03-2014 10:36 PM

Quote:

Originally Posted by woode (Post 1572183)
:burnrubber:

Map 2: ~21psi, 412hp / 308tq

How long will the block last with 21psi on 98(RON) 93(AKI)?

woode 03-03-2014 10:53 PM

Quote:

Originally Posted by DriftEightSix (Post 1572298)
How long will the block last with 21psi on 98(RON) 93(AKI)?

No idea. There hasn't been a lot of testing at high boost on these stock motors with pump gas.

The direct infection helps with keeping things cool inside. No knock at 21psi at 12.5:1 is pretty good I think. As far as how the stock cast pistons hold up...:iono:

JerryMichaels7 03-03-2014 11:00 PM

this is 93??

Zach3794 03-03-2014 11:01 PM

You know, JE makes 13.5:1 pistons in any size you need. No need to lower the compression. If anything you can slap those suckers in, dial down boost, and still make more power.

woode 03-03-2014 11:02 PM

Quote:

Originally Posted by JerryMichaels7 (Post 1572348)
this is 93??

Yes

nelsmar 03-03-2014 11:08 PM

http://media2.giphy.com/media/dOJt6XZlQw8qQ/giphy.gif


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