Gtx3576R.

[Bomber]

On ‎9‎/‎14‎/‎2016 at 10:55 PM, Ralph Wiggum said:

where are you located?

 

Im running the gtx3576r/E85/ZF?Sticky tire combo and it's awesome. Still blows me away everytime I drive it.

Glad to see you finally got one my friend

[SilkG6ET]

I have been watching this topic for a long time and finally got everything fitted.

Gtx35/76r is a wicked street combo.

Can't wait to get the radials in and get to Hearhcote. 

Thanks to all who contributed.

e85 tune next 

 

Edited 25/09/16 12:16 AM by SilkG6ET

[SilkG6ET]

Upside down graph-weird 

[SilkG6ET]

Graph fixed.

 

[sixman]

demon, I sourced a efr9174 locally in the end. Could have saved a couple of hundred buying from overseas, but happy to work with the local guys who have always looked after me.

 

Initial impressions - this thing spools just as quick as the gtx3576 and then takes off!

[Ralph Wiggum]

what housing did you go for on the efr?

[sixman]

T3 0.83 IWG.

The IWG design and angle is much better than the garrett housing.

I dont understand the a/r ration and how it relates to size, because the BW 0.83 housing looks bigger than the stock ford garrett housing.

[Ralph Wiggum]

.83 is a tighter rear housing than the Gtx3567r (1.06) so would account for the Spool.  All the big hp number published from the 9174 are all t4 housing so hard to say if the t3 .83 would hurt top end power or not, especially without knowing the wheel trim.

[Ralph Wiggum]

Also very interesting comparing the comp maps between the two-

 

\

 

[sixman]

The tune is still in development, need to take it back to Autotech - Spiro wants to up the boost a bit.

At 19psi my car made 370rwkw with the gtx and 420rwkw with the efr (with timing pulled out) on pump98. Both runs were with R888's on the back, which from experience dont play nice on the dyno and read 10-15% lower than regular tyres.

 

Whats your take on the comp maps?