66mm turbo injector size question

[rattlebox93]

i have a 66mm garrett t3 .82 ar what size injector will i need? will 5x18's be too big? im thinking they will be pretty good

[peobryant]

What's the truck going to be used for?

That turbo is probably way to big. It would take a long time to spool, and the VE makes all it's power really low, so you'd have a pretty gutless truck.

The VE seems to like 6 hole injectors the best, so a set of 6X.018's would suit you better, in my opinion.

[JQmile]

Big. Probably 6x16, and you'd better be thinking of turning some RPM with that kind of turbo....a 4200 spring and valvesprings are a must. Also, you'd need to stick with the 12mm head. 14mm's have a hard time living at that RPM.

[dpuckett]

And the 66mm is probably a little small to use in the bottom of a set of twins, huh?

DP

[seeker1056]

hmm - i may beg to differ - my 6 x 18s fueled a pro street 66 at about 1800 rpm with no issues even on the street and my current 71mm pro52 is freakin amazing on 6 x 18's and starts makin boost at about 1600 rpm

I also beg to differ on the rpm necesary as I have run the 3200 rpm spring with both setups and the 4200 spring with both setups including in a stock 12mm pump as well as the built 14mm pump

[soggy]

my silver bullet 66/74/14 does pretty good, not instant boost but not terrible lag either, don't have a tach so i cant tell what rpm it lights at. This is with the fueling I have in my sig. So I would recommend a good lift pump and 6x16s.

[ford69557ci]

Right before I sold my old truck I rand an Aurora 5K and I think they are 71mm. It spooled hard between 1600-1800 and that was with 6x18 and a set of 6x20's. Some 6x18'sould probly be the best bet with a 66mm since the 5k would clear the smoke with them.

[fergavs]

Ya I agree that with the right set-up a 66mm is no big deal. Your gonna need some 6-18's and a ported head or cam would really help with the turbo spooling at lower rpm. A 3200rpm spring will be fine, just make sure your fuel system is up to the task of keeping up with big sticks at higher rpm. Also I would strongly consider a properly set-up 14mm pump. I ran a 64/71/14 on my current set-up and it spooled faster then my stock turbo with the truck in stock form. Get it put together and you will have a badass 1st gen!!