He may be talking about on an 8. The mivec on the 9 spools a turbo much better as evidence of the graph he posted.

 

That was in 4th and on E85, this was pumpgas and 3rd Also Evo VIII here vs an Evo IX.

 

Here is a comparison of last night vs this morning.

The only reason power fell some in the 5K-6K range was because it moved into another load cell that had 1deg less timing. I confirmed it in the logs. It likes 9deg there and it only got 8. Potentially it could be from a ham-fisted move on my part after advancing it to 10 only to find the car didn't like that, and then thinking I was putting back to 9deg My dyno road is not secluded and after 3-4 pulls it attracts the wrong kind of attention so I get outta there after 3 regardless of outcome.

 

got ja. didnt see the 4th gear part.

Btw great numbers Drifto, really amazing.Top i did on 2.0 with 3076 on pump was 498.

 

One of the most impressive graph i had seen in awhile
More than 3000rpm of usable powerband,closer to 3500rpm which is excellent

 

This is pretty lame, but you get the idea. I was sorting a lock out issue so I was sifting a little slow just to make sure 2nd and 3rd found their way home. I rolled in it @ 3K

 

nice vid. for 93 that car def. rips!!!

 

Here I am trying to crack 500whp on a mustang dyno with meth with a ams 3076, can you explain how yours differs aside from the 1.03 and the twin scroll?

My setup is built 2L ported stm intake manifold/buscher 65mm/gsc 1 cams/ams tubular manifold, best I could get was 355mustang on 91 octane.
Never thought ppl would want to step it up to a 280 cam or so for a non gtx 3076..

 

Do you have the exact specs of your 2L 3076 build?

 

the 498 was on a dynojet.
It was a stock 2.0, with all the normal bolt on's. Including a ported head and S3 cams (prob the biggest reason) and Magnus V5. It was very laggy but loved to rev.

 

Thanks dude!

All the specs are in the first post. I'm using the high lift 276Kelfords to take advantage of the CNC ported head's additional airflow. The turbo is an HTA3076 so it moves a similar amount of air to the GTX3076.

 

03whitegsr is correct about the higher heat conduction per unit thickness of cast iron vs 300 series stainless. I do agree with you that a cast EM will retain more exhaust heat because of the lesser surface area, but I'm not sure how much advantage it provides. I've tried two thickwalled tubulars and the GTSpec on my Evo, and none gave up any spool that over stock that I could detect. Perhaps offset by the better flow? Maybe a cast high flow EM is the sweet spot?

 

So again this was with a standard bb 3076 not a gtx or hta? You were able to make 498 on 93 octane?

 

This was 92 oct, and yes BB standard 3076 (no gtx or hta)

 

What were the ambient temps when you made 570WHP on the 3076? That's pretty high for a GT3076R.