When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Max 630 bhp and probably 530-550 ftlb if you have inlet manifold twin scroll, cams, pistons, big enough exhaust and intercooler to suit. (Don’t know if head work is needed) Mark Shead can confirm and make it happen.
the key is that they spool up under 3900 rpm to over 7000 so you get a big spread.
Last edited by Caddyshack; Nov 4, 2018 at 06:57 PM.
i think you have drunk to much😂laggy full boost at 3800rpm and 600hp laggy.
Mark
Well the conversation we had when 7670 came up for-sale and I was going to buy you said not a great turbo on a yb as the response and lag was terrible and that was the reason 800bhp went from that turbo to a 7064 ?
I thought 800 bhp tried a 71...something thinking it was a newer and better version that did not turn out that well? 7064 has to be the best option if you do not need over 520 bhp though (on a YB)
Well the conversation we had when 7670 came up for-sale and I was going to buy you said not a great turbo on a yb as the response and lag was terrible and that was the reason 800bhp went from that turbo to a 7064 ?
what I would have said is the 7670 is 400rpm laggier and the 7064 is better suited to your engine spec.
The 7670 is the best 600hp turbo you can buy.
What’s the max power you’d get out a 2.0 yb with a 7064 with cams, bigger plenum, standard head ports and a built bottom end?
depends on total spec. The one we have on 800bhp engine with my new spec head work and cams is running 150k turbo speed with I am sure will be the first one I have seen will be in the 530hp range.
Assuming same sort of spec engine,where does the 8374 fit in?Power,spool,torque,rpm?
pits about 400rpm behind the 7670 but under delivers in it power output 650 to 680hp still a very good turbo but I go to the 9180 for the full beans. There is a 8474 coming soon that should make quite a difference in its power.
Would that differ much from say pulling away in first then spooling up as you change into second gear Mark?
Cheers Paul
Well obviously it won’t spool the same in the lowers gears as you don’t have the load on the engine but the gain you have in spool over the other type turbos do transfer in to the lower gears and this is where most people notice the big difference as the engine is so much crisper in the lower gears as well.
Well obviously it won’t spool the same in the lowers gears as you don’t have the load on the engine but the gain you have in spool over the other type turbos do transfer in to the lower gears and this is where most people notice the big difference as the engine is so much crisper in the lower gears as well.
Mark
that’s interesting, would a lighter car mean less load on the engine so lower spool?
is there much differance in spool and full boost revs between the 7064 0.92 and the 1.05 housings
Not tested the 1.05 as I find no need for it. I do have a car coming at some point in the future to have tested one but it’s not my engine spec it’s only in for mapping.
Is it the externally gated versions that have the 1.05 exh housings?
Cheers Paul
yes,externally gated in a 7064 is 1.05,
if the 7064 0.92 internally gated produces in the 500 region and has better driveability then this would be the obvious choice for most yb engines
