Hi guys.
Pretty new here, although I've lurked for a while.

Building a Time Attack car 1.8VVT in a NA and trying to decide on a turbo. Either gonna be a GTX3071R or a EFR 7064.

Trying go get info on manifolds and after much searching on here and elsewhere, seems like not too many options for a twin scroll?

If anyone knows of one available, it would be a big help for me.

D

 

I know of a sweet little setup for sale...

If you want a twinscroll though, contact Turbo Tim. maybe his username is turbotim. Anyways him or ARTech will both design you a good twinscroll manifold. They are the go-to fabricators here.

Why GTX3071? If you look at the wheel sizes and compressor A/R you'll see that this is a completely different turbo than the GT3071. It's bigger everywhere. Also, what are your power goals? One thing to note with the EFR turbos- if you look at the compressor maps you have to be boosting like mad to stay within the map if you want to max it out- according to the compressor map for the 7064 it will take you around 35 psi to make 560hp with that turbo.

 

Depending on power goals, if you want 560 whp you're way better off with the 7670.

 

 

Go custom.
Pick between Absurdflow or ARtech.
End up with a kick *** manifold.
Profit

 

Been in touch with Tim already. That was the logical choice but his workload is prohibtive. Been in touch with lovefab also.

My power goals are 550 engine hp range.
Thought about the gtx3071 bc it spools sooner than the gt3076. Although, it must be said, the non X models are really coming down in price.
It would be really nice to A/B a twin scroll vs. A v band also, although i already know my answer i think......

I will contact the 2 leads you guys gave me and hope i can get this on the track soon....

Cheers

 

Been in touch with Tim already. That was the logical choice but his workload is prohibtive. Been in touch with lovefab also.

My power goals are 550 engine hp range.
Thought about the gtx3071 bc it spools sooner than the gt3076. Although, it must be said, the non X models are really coming down in price.
It would be really nice to A/B a twin scroll vs. A v band also, although i already know my answer i think......

I will contact the 2 leads you guys gave me and hope i can get this on the track soon....

Cheers

 

You may want to go with a little bit bigger turbo. 550 crank would be pushing a 3076 hard and you want to do some serious racing so you may want something a tad smaller to stay away from heat soak.

 

Did a quick search for you....this popped up, I'm thinking it might interest you.


https://www.miataturbo.net/diy-turbo-discussion-14/twin-scroll-t3-tial-v-band-manifolds-37832/

 

Yes. Saw that as well. Ill take one pls...