How far (hp wise) can a stock ECU safely handle?

[vas85]

Hi All,

Out of curiousity, how much HP can you crank out of a stock ECU with say.. LEX AFM, Fuel Cut Defender and provided all the other goodies are in place... larger injectors, and so on.

Reason I ask this is as there is the guy with his 93 toyota pickup (7m) on GTEPowered.com claiming he's still on stock engine management.

Linky:
http://www.gtepowered.com/index.php?page=html/dconsentino/profile.php

What are drawbacks of sticking with your existing stock ECU if you're shooting for say 400rwhp+ as opposed to a piggyback ECU, or a standalone MOTEC and such?

 

[LilMissMkIII]

Electronics:
I run straight off the wastegate which will run the car at roughly 29-30psi. VPC/AFC, MSD DIS-4 running off a custom Reg Reimer ECU. It has other odds and ends like an FJO wideband MSD window switch, autometer gauges, etc.

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Doesn't look like he is running a STOCK ecu

 

[figgie]

Reg Reimer ECU = the now defunct techtom (think I spelled that right).

stock ECU. Even with piggy backs I would not go above 500hp. To much ignition unknowns when it comes to timing and fueling.

 

[IJ.]

232hp

 

[foreverpsycotic]

IIRC, one of the heavy hitting MKIIIs in vegas was running on a stock ecu.

 

[92TealSupra]

232hp

230 for 87 and 88 ?

 

[vas85]

232hp

How could I miss that! lol...:biglaugh:

 

[Who]

232hp

All my dreams have been crushed. :cry:

 

[Muzy]

I'm no expert but he is running 11-1 with 14psi of boost. Somehow that sounds incorrect
But I did not note what he was running for fuel? muzy