Turbo Recommendation
 

So I'm building a 1.8 motor and im going with forged internals and 8.8:1 compression .040" overbore pistons . and ARP studs on everything. what kind/size turbo would you guys recommend for a strip/steet car. (im new to turbos, still learning). Thanks for help

what are the power and torque curve goals

A big one.






But seriously that's not enough info. Goals? Budget? You'll get better results if you read through some build threads and see what others experienced than if you just ask us questions.

Id like to be around 275-300 Hp with 220-240 torque. budget about $3500-$4000. 3" exhaust.. MS..

Ive been checking some different builds out.

Then you use the same turbo as everyone else in existence, in 90% of those build threads you've been checking out.


2560.

Yeah I've seen them. its seems like a relatively small turbo tho. i mean I'd like to go with more power but Im not sure what these tansmissions can handle.

Do you want to go with more power, or do you want the 275-300hp you just told us you wanted?

Make up your mind.

I know I know, honestly I would like to get as much power as the motor can handle but still be drivable on the street.

2871R, 0.64a/r

5spd, 6spd, TII, what rear end?

5spd, torsen 3:90 rear

2560.


And a very empathetic right foot.

Here's a chart Soviet made that might help you figure out what your goals are:
https://www.miataturbo.net/attachmen...ine=1408123346
If you want as much power as the engine can handle (assuming you do a few upgrades) you gon break shit on the street.

^Troof.

Motor in our car isn't the most insane thing in the world, but if i did the work to push it, nothing else in the car would hold together. Nothing.

Know what i would do, OP?

Ever been in a 250whp Miata?

I'd shoot for 250whp. Get an FM2 kit with the 2560, run it on stock motor. Transmission will survive, it'll last forever with a good tune, and it'll be cheaper. Still fast.

Because... and stay with me here... you won't get a built motor, turbo kit, clutch, standalone, fueling, etc etc etc all for your $4k budget. $4k gets you a turbo setup.


Spending another couple thousand just to make another 25-50hp is dumb.

Why do you care how small it is? It gets it done and nicely. To be honest I wouldnt mind if it was a little smaller and still get the same gains. For me Id rather run the smallest turbo possible to reach my goals within reason. Why? Well there are several reasons including spool. Remember, are little motors have to spin the turbo.

Fair enough. haha and i like the chart. thats what i was worried about. "everything else" so ill stick to my original goals and run a 2560.

IMO you should check out the FAQs

Yeah Im following ya.. and yeah a buddy of mine has about 270 whp in his NA and that thing is a rocket (on stock internals).