I am about at the end of this turbo's power potential, so I am ready to upgrade.

My question is which will make more power, a 14cm non wg or a 16cm non wg? I dont really tow, just mostly play.

Also, I will be looking into a stage III compressor with 60mm wheel.

What should i do first? Exhaust upgrade first or Stage III compressor.

Thanks for the help........

 

With your power goals, I'd suggest keeping the 18.5 cm housing. You will have enough fuel to spool it as soon as you grind the AFC lever. Do the Stage III compressor.

A 14 non wastegated is too small unless you stick with stock injectors. It will be restrictive and can also spin the turbo too fast.

The 16 cm would be nice with the stock injectors, but once you go to POD's it's going to be pushing the high side of 40 psi. That's too fast if you want the turbo to stay together for a while.

 

The 14w/g seems to be the hot ticket for running a bunch of fuel with a single charger...it's also fairly pricy. The stage III compressor housing should be a very nice upgrade...it'll support plenty of fuel, but I'd look for bigger pipes soon cause us non intercooled guys heat up pretty quick and we need all the help we can get in cooling things off. Soo, the compressor will give you the ability to burn more fuel more effectively, and then the stock pipes will stop you from burning it for too long....it's never ending, as I'm sure you're well aware
g

 

I stand corrected on the 14w/g housing
g

 

POD's are in the future also. And 4" turbo back. Just waiting for reinlistment time.

 

Greg - You're right on the wastegated one. It is all that!

Remember to read the test questions carefully, class.

 

What kind of boost do i want to stay around? I thought stock head gaskets were good for 50psi and o-ringed for 85psi.

 

DOHT, long day at work...did NOT read the test question accurately Had to put a heater core in a '98 plymouth breeze at work today...it only paid two hours by the book, but even the master tech said dayum, glad I'm not you! guess my brain's toast for the day

g

 

''What kind of boost do i want to stay around? I thought stock head gaskets were good for 50psi and o-ringed for 85psi.''


I think Wanna was more refering to overspeeding the turbo to make that boost....but I've already been delinquent in class once today, so I'll just let him answer

g

 

It's not the head gasket you have to worry about with a single turbo, it's the turbo. If you spin a Holset turbo over 40 psi it is likely that the compressor wheel will explode. Not fun, especially if you don't have an intercooler to keep the big chunks out of the motor. The Schwitzer based turbos are much more robust and can stand 45 psi on a regular basis.

 

You've redeemed yourself, son!

 

hehe, thank you sir, may I have ano......nevermind

 

Oh, gotcha.

I do have an extra big turbo off a Volvo MD41, along with a Marine VE pump. I bet the marine VE will throw some fuel, and its got a high reving spring already in it.