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Discussion Starter #1
Had a customer come in, 2007 Renegade, home made turbo setup, had all sorts piggyback injector drivers, extra injectors, stock ecu, wires everywhere, a big mess. Customer had bought the machine, as is, running, had some kinda boogered up 912 kit, dome pistons (!) stock heads, ran it one time, broke a timing chain, on front cylinder. Our job was to figure out what was up, & fix.
We installed a turbo 840 kit, his crank & rods were good, new G2 MRRPM turbo cams, stock atv heads, 9:1 compression, left in tact his homemade turbo setup, Rage three/G1 secondary clutch setup, reflash stock ecu, big injectors, got rid of all piggyback B/S, tuned with PC3, made 114RWHP, @12psi, I'm sure there's more in it, with a good/different turbo, as this one looks like some kinda diesel turbo or something. Anyway, 20mph wheelies are easy, cheap & powerful easy to tune setup now.

This machine was built years ago, when there were no options as far as engine controls, nowadays, if you want a turbo, simply reflash stock ecu to turbo tune, install a different map sensor, tune with Powercommander. Super easy, cranks right up as stock does, fuel & timing are super easy to tune, only two injectors, use all stock wiring, no splicing.
 

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Build us a bolt on turbo kit and we will buy! :)
 

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How much does something like cost?
 

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Discussion Starter #6
There have been a few companies making turbo kits over the years, they all seem to suffer from ecu/tuning issues. This ecu/tuning setup does away with these problems, no need for an aftermarket ecu, or piggyback injectors.

So many guys see that a turbo is less than $1000, and think that is all there is to it, that can't be further from the truth. If I were to make a turbo setup, it would not be cheap, as the way to do one, is to use stainless castings, and heavy wall stainless tubing for the headers. This is the only way it will work dependably for any amount of time. This is the worst problem with turbo setups are headers cracking, from vibration, on these odd-fire motors.
Other problem is lack of a good clutch, which can be easily fixed with an STM, but again, price is the problem.
Another issue is compression, running pump gas, compression must be reduced to make it dependable, & easy to tune, so as not to detonate, and break pistons. Aftermarket pistons can be added, but again, cost rears it's ugly head.
 

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How much boost and HP could be gained on the stock internals? As in the stock compression ratio….?
Just curious, because most of us are just looking to run low boost and gain some power, but we don't need 50hp or anything crazy that needs major internal changes.

I'm just thinking out loud here…..
 

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Discussion Starter #8
How much boost and HP could be gained on the stock internals? As in the stock compression ratio….?
Just curious, because most of us are just looking to run low boost and gain some power, but we don't need 50hp or anything crazy that needs major internal changes.

I'm just thinking out loud here…..
As far as boost, what are you considering low? Maybe 5psi?
If so, 5psi isn't worth doing, imo, as 5psi would only be around a 16rwhp increase, as you can get more than that, with a bbk, cams, exhaust, & tuning, and not have turbo lag.
 

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Registered
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5,240 Posts
How much boost and HP could be gained on the stock internals? As in the stock compression ratio….?
Just curious, because most of us are just looking to run low boost and gain some power, but we don't need 50hp or anything crazy that needs major internal changes.

I'm just thinking out loud here…..
As far as boost, what are you considering low? Maybe 5psi?
If so, 5psi isn't worth doing, imo, as 5psi would only be around a 16rwhp increase, as you can get more than that, with a bbk, cams, exhaust, & tuning, and not have turbo lag.
That answers it! :)
 
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