An open t3 .70 hotside 60mm hx40 spooling before 4500 sounds extremly early, most t3 .70 hx40 seem to full spool around 4700-4900rpms. But I agree, the .55 bolt on hotside is inferior to the t3.

It will all be in the tune, and using E85 as the fuel will make it easier/possible to hit 400whp with your hardware, although most seem to average around 350-380whp with a evo 3 16g on e85 with supporting mods. Being FWD, traction will be your main concern well before 400whp.

28 psi from a something like a 6466 will create alot more cylinder pressure than 28 psi from say a hta68. Its not the boost psi, its the cylinder pressure in the many thousands of psi from combustion.

For what its worth, Its available with Turbo, and AWD. lol

Most likely better spool but less top end on the bolt on gt3076. I have ran a gt10 version of the bolt on gt3076 which is smaller on compressor and turbine and flowed 45lb/min at 26 psi, full boost at 3800 rpm.

I will order a standard 2.5" flange to make an o2. I was just wondering because the FP vband flange clamping edge looks really low compared to what I see elsewhere listed as 2.5. Thanks for reply

I have a fp30 style housing on the way, does anyone know if standard 2.5 inch v band flanges work with the fp30's 2.5 outlet or is the flange a forced performance specific size? Thanks

Looks like the v2 hta68 turbine is close in size to a TD06 turbine wheel, a good amount larger than TD05

Nice, I like how well it is holding power up top. I notice your hta68 has the larger compressor housing, and looks like you reach peak boost around 4300-4400rpm with your setup?

Very nice, great power on stock block, car looks good too!

Nice! Is the billet compressor a 60mm? or did you go for one of the larger ones?

That kid has also trapped 138 on that setup.

Hell yea, nice power

Yup, Cylinder pressures reach 3000+ psi.

To get some good data you really need to do a WOT pull in 3rd gear from 2.5-3k rpm up to about 8k, if you can do this while staying safe! Watch your wideband afr's, they are a good bit off of your requested DA values at WOT. You are moving some serious air and making power though!