How does it feel compared to your setup?

 

Can't find my 601whp one but mivec 2.0 3071 g2 .83 TS
Mid point dip has been fixed car doesn't go up and down in power on the street.

 

It feels really good. My car matches up with the dyno sheet pretty well. This car spools faster than the dyno sheet, and transient on shifts is faster than my red. Also mine has mivec, so it cheats a bit. Aaron would expect mivec to spool the G30 500rpm faster.

 

Hard to believe it comes up harder then both our cars but times do change.

Nice to know there are other options out there that perform this good.

Great job on building that engine /setup Sean.

One big downside for me would be the exhaust note change if I went the Garrett direction. Going away from the Stock location manifold tends to sound more Honda.

 

Thanks Tim. A decent amount of thought went into the approach on this one to make sure we didn't sacrifice spool up for small top end gains since it has no mivec. Mainly S2's instead of R2's, keeping the stock intake manifold, and doing a pocket port instead of a full port.

Worth noting, the "final" number of 615whp is only 15* of timing at 7800 and up. We left it soft because the motor had 37 miles on it, and injectors were at 92% already. More fuel system, more boost, and 1-2* more timing and this is easily a 650whp+ setup

And not sure I mentioned this here already, but Aaron thinks mivec would spool this turbo an easy 400-500rpm faster as well.

 

Nice results, what boost do you think it can hold to 7800 or 8k without tons of backpreesure and really ramping up the gate?

 

Would need emap sensors for that, but based on how it was picking up boost it would probably be fine getting 35-37psi out of it. To hold 29psi from bottom to top, we only need to bump wgdc cycle an additional 10% past 6500. So below 6500, it was 50%, above that it was 60%.

 

That is a damn nice graph! Any plans on upgrading the fueling and going back at it?

 

No, this is already way more than he needs out of the car right now. It will likely spend most of its life around 500whp at the track.

 

Gotcha. Thanks for posting the results man!

 

There's definitely more there down low as well. But we were more interested in keep the torque curve flat for drivability on track. Could easily make it hit hard with 530-550wtq if you wanted to.

 

Letsgetthisdone - do you have the ability to do any data logging?
I'd be really interested to see the boost curves from 1500rpm in 1st, 2nd, 3rd and 4th gears.
Just from 1500rpm, go to 100% throttle and back off once you're at max boost.

Should look something like this:

 

I can try to do 1st-3rd from 2500 4th may be hard to do. I'm not going to lug it down to 1500, theres absolutely no point in that.

 

That's no problem.
Just whichever RPM you choose to start on - do that across all of your gears so it's consistent.
2500rpm start - 1st, 2nd, 3rd and 4th.

 

We also have WGDC turned down in first and second to act as sort of passive traction control so it doesn't just blow the tires off. But you'll still get a good idea of what it's doing