turboing 86 fiero gt

umm..... you know how big the GT42R is compared to the 2.8? it would take forever to start making boost on it.

a T61 is very well suited from a 3100 to a 3900. i'm sure it would be a BIT too big on a street 2.8, but for something thats set up for all-out power, it should work out alright.

He's gonna need another engine bay for that thing. It's entirely to big for a 2.8L and the kind of power you would need to aim for to make it legitimate the 2.8L is probably not capable of enduring for more than a moment if it's even capable. A T3 .60/1.06 is good for about 360 hp on a 2.8L but the most you can be certain of with a GT40 bolted to it is getting smut on the turbine while spending most of the rpm range to the left of the compressor surge line.

If you're going to tubocharge it you would be much better off at least in my oppinion by getting rid of the 2.8L and starting with something stronger and less likely to throw a rod at you.

[robertisaar]

umm..... you know how big the GT42R is compared to the 2.8? it would take forever to start making boost on it.

a T61 is very well suited from a 3100 to a 3900. i'm sure it would be a BIT too big on a street 2.8, but for something thats set up for all-out power, it should work out alright.

[IsaacHayes]

Check out fiero.nl for ideas. People have swapped just about every engine into them. Joseph on here has swapped a 3900 with twin turbos even...

[kikinz24]

ok well i picked up a toy not too long ago its a 86 fiero gt fastback 4 spd manual. got a 2.8 in it. ive built a few v6's for power and boost before. anyhow. im going big time on this car want to see what it can do. i have a garrett gt42r its a t6 with a 72 a/r and 94 ex. my one issue ive ran into is where the hell im going to mount this thing at. beings i need to run an external gate. i have an idea on how i want run it on the cross over but im kinda worried that this turbo is too heavy and will make it bend. bein a t6 flange i got to customize the crossover anyhow stock piping is 1.5 and i gota make it aprox 3in at the flange. has anyone here ever put this big of a setup on such a little car. ? i know i can do it its just if anyone has any insight i would greatly apprecate.