JUN GT SURGE TANK FOR FT86/BRZ

[prandelia]

Originally Posted by NoHaveMSG

Interested in how you like the new gearing as well. I am running 4.3 which I am pretty happy with.

Is that an APR GTC200 you are running?

Yeah, no lie, the 4.3 is damn near perfect from the standpoint of mph and shifting at all the tracks I race at (Mid-O, NCM, Road America, Autobahn, Barber, Gingerman, etc.), but to keep up with these torque monster, K24 K-swapped miatas and all the other detuned cars I race against, I don't have a choice but to put more torque to the ground this way. It will definitely cost me another shift at some places, that is unless I rev it higher. So I figure if I'm gonna rev higher, might as well make power doing it, or atleast flatten the power for the last few hundred RPM.

Plus, from the powerband point of view, I'm still a bit too low in RPM on alot of 3rd gear corners, and the 4.556 will help with that as well. 4.88 is too short, and I think 4.556 is honestly the sweet spot.

No, it's a wing setup from Europe. Similar foil width, ~48", but sits higher in clean air, and is perfect for when you don't run a front splitter. The balance is phenomenal.

[stevo_12v]

This was on my build thread ages ago. The pics were lost when tinypic hosting closed down

[captain awesome]

Originally Posted by stevo_12v

This was on my build thread ages ago. The pics were lost when tinypic hosting closed down

Any idea what the torque curve looks like? The 10ish hp bump around 4750 is awesome. Also what other mods were involved in this? What fuel?


Edit: I see you mentioned some of this earlier in the thread.

Photo of the dyno plot from my tuner. Didn't want to up the rev range to 8krpm obviously as the motor doesn't have the necessary mods for that.. yet.

Around a 12hp gain in N/A form, well for me at any rate. Previous dyno power run was ~190hp. Also I decided to get the exhaust changed out from the 2.5in dia HKS Spec-L to the 3in dia HKS Racing Single exit cat back.

I still retained the Crawford power blocks and the Torquesolution TAB spacers. TODA throttle body also.

Ran on pump gas also. I haven't had a chance to drive it yet as I'm at work. Just got the photo sent to me.

[prandelia]

Originally Posted by stevo_12v

This was on my build thread ages ago. The pics were lost when tinypic hosting closed down

That's the conclusive data I like seeing.
Expecting my new peak hp to be around 7600-7800rpm from 7150, on E85 spun to 8K for racing. Hoping it shows up in time as my Xmas present.....

[sato]

Originally Posted by prandelia

That's the conclusive data I like seeing.

Expecting my new peak hp to be around 7600-7800rpm from 7150, on E85 spun to 8K for racing. Hoping it shows up in time as my Xmas present.....

We wish you a merry Xmas!