sdr85

I have 97 Prelude SH w/170k miles on it. Is it safe to install a small turbo?

TrappedDarkness

If the engine is well mantained and you would have to define Small? I would recommend Main and rod bearings. But also don't forget to up your fuel with something like larger injectors. As long as you only to small amounts of boost maybe 5lbs or less i think you should be ok

Toyo/Jdm08

yea 5lbs with maybe a small t3/t4 would be good, no harm there. but i would recomend a rebuild.

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Toyota and Honda make the best quality vehicles over any other makes or models out there>even when they are more than 10years old, they still run hard!!!!!!!!!!

halfasss101

Best diagnostics would be leak-down to the head and cylinder compression check. But with that many miles, like already mentioned, main bearings and rod bearings would be smart too! also, arp head studs would help an old and worn out head gasket from blowing out. or replace the head gasket (stock is fine) as long as you have arp head studs. they do not stretch like factory head studs. But also as others have said, no more than 5 psi or so. Just to be safe Good luck

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Dear heavenly spirit, thank you for providing us with direct port nitrous injection, four core intercoolers, ball bearing turbos, and titanium valve springs Amen-The Fast and the Furious

loudestxlude

ya i would suggest rebuild also.. and get rid of that pesky ATTS.. that will limit the power u make.. that ATTS system cant take more than 300 HP.. so either unplug it and carry around 50 lbs of dead weight or just take it out completly..