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Old 09-25-2005, 07:44 PM   #1
Bud Brown
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Default Turbo on the leg....

I am boosting my car next summer, but until then, what mods should i do to my engine (bolts on and internal work) to prepare for the turbo? Also, aftermarket cams are fine for my engine after its boosted, correct?
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Old 09-25-2005, 08:00 PM   #2
Sko
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Don't screw around with cams, just do an STI shortblock for boost ^^.

Nice exhaust setup would be main thing for turbo... Then a lightweight crank pully and... well might as well start upgrading your clutch/tranny before you snap em with your turbo.

Good Luck!

Nick
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Old 09-25-2005, 08:23 PM   #3
Tats
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Be careful with cams. You'll need turbo specific grinds. (Less overlap)
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Old 09-25-2005, 08:50 PM   #4
leondal
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You can run boost on stock internals, but the better the engine is prepped
beforehand, the less likely you will have a surprise breakdown that'll
leave you without a car for a while.

If your car has not had it's headgaskets replaced during its lifetime, I
highly suggest replacing them. Same goes for the timing belt: if it
hasn't been replaced in a long time, now's the time.

A 2.5" exhaust, in my opinion, would be very important on this engine.

I would not personally do anything cam-related to the DOHC engine, unless
you really plan on building a race engine. Once the turbo is on, there are
countless things you can do to add further power besides cams. A cam switch
on this particular engine is very involved and time-consuming.

The one thing that I could also recommend is a set of forged pistons.
8.5:1 or 9:1 would seriously improve the durability of your engine.

I highly recommend some form of fuel controller. You will definitely
want to adjust your fuel once the turbo is on, and there is a lot of power
waiting to be made by doing so.

The possibilities for power-gains are endless once the turbo is on. $2 or $3 can sometimes add as much as 10 hp, where on an NA engine, it took $500+ to get those gains.
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Old 09-25-2005, 09:27 PM   #5
Bud Brown
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thx leondal!

yeah when she gets boosted i'm gonna be running a greddy e-manage, so that takes care of my fuel.
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Old 09-25-2005, 10:09 PM   #6
simple monkey
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it might not be in your greatest interest to build your car for low compression and drive it around without the turbo. I would suggest putting in all the low compression pieces right before you do the turbo installation. On my car, i unhooked the turbo and drove it around just to see what it is like, and it made about 50 hp . Maybe you should look into a megasquirt as well, thats what i'm saving up for.
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Old 09-25-2005, 10:12 PM   #7
Bud Brown
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Quote:
Originally Posted by simple monkey
Maybe you should look into a megasquirt as well, thats what i'm saving up for.
megasquirt?
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