Changed a few things up this summer, primarily switching to an URGE "boost velocity" built head and pulling my Fullblown dual in-tank pump setup in favor of the new Science of Speed dual pump surge tank.

548hp / 413tq @ 13.6psi on E85

Pretty happy with the power for such a low boost level....hopefully that will help with the longevity of my motor

Here's my Setup:

Motor:
URGE built bottom end
darton sleeves
lightened shaved crank
billet I-beam rods w/7/16" bolts
wiseco 10:1 pistons w/ceramic coated tops
ported oil pump
fluidampr crank pulley
URGE built head w/inconel exhaust valves
AP1 intake cam / AP2 exhaust cam
ARP studs

Turbo kit:
full race pro street (ramhorn)
Garrett GTX 3576R w/ 1.06 A/R housing

Fuel system:
Walbro 450 E85 pump in tank
SOS dual pump surge tank w/AEM 320 E85 pumps
SOS pump wiring kit & plumbing kit
-8AN feed line / -6AN return
Fullblown fuel rail
FID 1200 cc injectors

Tuned on Hondata KPro





Timing is around 14 degrees
Injector duty cycle is at 72%
VTEC crossover was set to ~4k rpms
Rev limiter set to 8600

We tried turning up the boost to 16psi. We did gain a bit of power (extra 20hp / 10tq in the midrange), but the graph started getting pretty choppy on the topend. I didn't think the little bit of power was worth the extra wear and tear.

Disclaimer:
This is not a drag or track car and will never see the strip or track. I wanted a fun street car with quick spool and a meaty powerband

Scott-

 

Looks fantastic. That's a lot of power and a great power band for such low boost. Will you also run it on pump gas?

Tim

 

VERY nice numbers

 

Thanks Tim!....I always appreciate your input

No plans for pump gas atm, I planned/built it to mainly run E85 from here on out....luckily an E85 station opened 2 miles from my house

 

Awesome numbers, especially that torque.

 

This is a 2.2? Or a 2.0? How's the spool of the turbo with such a large hotside?

 

Looks to be a 2.2

That powerband is amazing! Awesome figures, that would be an incredible street car, enjoy it!!

 

Awesome numbers...but are you saying the turbo was pretty much out of steam at 1 bar? Great setup...1.06 AR on T4 Twin Scroll isn't shit really, bigger is better...love the powerband.

What was your base FP???

I think you would max out the turbo around 20-22psi...in the 600whp range...goes to show how absolutely awesome the F20 motor is...it take 30psi to make that power on a 4G63.

 

With a Full Race ramhorn, tt's 1.06 a/r on a T3 undivided housing.

Tim

 

Very nice numbers. Was it a pain to fit that turbo on the ram horn? I have the the same manifold want to switch to gtx35r once my 6262 goes out.