Mitsu @14psi vs. Garrett @14psi

[Moof]

How much of a difference lies in between the 2? Is it a noticeable difference, or should I leave the mitsu on as I plan to not go over 14psi until my engine is rebuilt? The engine will not be rebuilt for a long while yet, and I'm wondering if I should swap the turbochargers to add to my summer budget-speeding fun.

BTW, the car is currently intercooled with a large NPR, and the Garrett is a super60. All this on an '89 Shadow ES

[Phreakish]

the mitsu hinders flow in the exhaust, is prone to overboosting with the 2.5, and is overall a worse choice - I'd stick with the garrett, I believe it offers better efficiency and less exhaust restriction, especially if you're running a 2.5.

[Moof]

so I should swap over ot the garrett? Are there only slight gains to be noticed?, or do I have to be in the higher psi range to start noticing?

[turbovanman]

Garrett wins, flows more air per pound, no boost creep but the mitsu has lesser lag, choice is yours!

[Moof]

So I take it I'll be expecting more HP?

[turbovanman]

Yes, I would go with the Garrett as your running a big intercooler, I just noticed you said Super60, then theres no issue, put it on!

[Moof]

I'm able to run the Super60 on stock fuel pump/injectors if I plan on only running 14psi, right?

And I KNOW i'll more than benefit from an ECU recal.

[turbovanman]

You should be able too, but I would start low and turn up the boost slowly, watching your egt's and air/fuel guage.

[Moof]

Excellent. Thanks a lot!

The sooner my engine goes, the sooner i realize I need a rebuild

[glht_omni]

i had a mini that had a mitsu @12 psi and then i put a 89 t2 garret on it @12 psi with no other changes besides the turbo, the boost came on stronger and would break the tires loose at 10-15mph.
the t2 lasted 24 hrs before the oil seals went in it and i switched back to a mitsu

so for having a mitsu, then a t2 for 24 hrs and back to a mitsu - i could definetly notice a difference and missed having the extra torque.
the rest of the setup was stock, so even with no mods a bigger turbo is a noticeable improvement.

[glht_omni]

oh yeah moof, DO NOT run 14psi on a stock fuel system without a intercooler, i blew 2 motors set at 12 degree timing that way and it wasnt pretty, luckily they were junkyard motors. even with an intercooler dont do it unless you at least have a air fuel guage.
start of at 12 psi and 12 degree timing, then work them up slowly to be safe, nothing sucks worse than blowing a motor due to 1 more psi than you should of.

[Moof]

Thanks. i do have an intercooler, though. that was my 1st mod.

[juxsa]

Oh man.... your going to be going from a mitsu to a S60.... I upgraded from a mitsu to a Garret and I tell you.... for every PSI that garret makes it takes the mitsu 2PSI to make the same kind of power.... I have a hard time deciding if upgrading to the 2.5in exhaust (my first mod) was a better or mod or going from the mitsu to the Garret....

[macncheese]

oh man, i can't wait to put my garret on!!!! i'm coming mike!!! maybe tuesday or wednesday, i'll call!
tony

[DarkWolf]

2nd trip to the 1/8 strip with the van
Something still isn't right with mine but you can see what I picked up with just the turbo. I was probably running a pound or two less boost this time aswell. I had to mess with my grainger spring when I did the swap and its been more spike prone since then.