Turboing 20 Valve 4age ??

[Jared]

hey guys just wondering if the 20valve can handle say stock t28 boost 9psi with little mods?

[Jason]

there is loads of info about boosted 20v around

[Falken_KE30]

Haha

 

 

LMAO :P

[Mr Revhead[RL]]

yes they can

 

however u wont be happy with the reliability

 

as jason said..... heaps of info out there.

but basiclly:

rebuild with 4agze pistons and rings

fit 3sgte injectors

use aftermarket ecu

[Clown]

talk to "Speed Tech" in New Zealand. They have a turbo 20v putting out crazy numbers.

[Mr Revhead[RL]]

yes but its a pure drag engine

they also have some funny ideas like only using 8.0:1 pistons.

[beerhead]

When you add up the cost of an ecu, turbo and manifold, intercooler and piping. It makes you think, it would be worth spending the $700 bucks on forged 20V pistons? http://cgi.ebay.com.au/TOYOTA-TURBO-4AGE-2...1QQcmdZViewItem

 

I've heard GZE pistons ping like a bitch in a 20V unless alot of tuning is done. I'm in the process of getting a 4AGTE together, thought about going down the 20V road, but considering I want to run a megasquirt, I figured a Low K gze bottom end would be cheaper to kill than a turbo 20V item.

[beerhead]

Thing is though you might want to be able to tune the motor, I want the rings and bearings to be run in. If I got a 100kw bottom end I'd be inclined to get new gze pistons, bigends, mains and rings, which is the plan once I have a good map to play with.

[Mr Revhead[RL]]

've heard GZE pistons ping like a bitch in a 20V unless alot of tuning is done.

 

thats not true. and youll need tuning no matter how u go about it

 

yes 100kw bottem end is the better start.

 

for the cost of a ze you can buy and rebuild a 100kw bottem end with NEW ze pistons TRD bearings and new gaskets