Just wondering how far you can go with performance mods before impacting engine reliabilty an/or an extended GMPP warranty.

Looking to do something to make the experience even more fun, but I don't to be in the repair shop frequently. No tracking and no really hard driving.

 

Intake, headers, and exhaust are all "external" mods that do not adversely affect reliability. (unless you overoil an aftermarket intake filter). Once you get into heads, cams, etc, then the skill of the "builder" is critical. I've heard of many problems resulting from improper builds.

 

ANY, I repeat ANY, performance mod will effect the reliablity to "some" extent. These cars are enginered to perform best as stock vehicles. Now before everyone goes postal on me, let me explain. Even changing you air induction can cause a few minor problems, like water getting where it's not suppose to go, or fooling the computer in your car to some extent. Not saying you will have more problems in every case. A good mechanic, the right parts, everything falls into the whole picture. But chances are.... A pure stock cars is more likely to be more reliable than a modded car when it comes to performance mods... But that has never stopped most people... The more you mod, the more problems you will have, every situation is different...

 

with stock block, suspension ect.. id say the limit is around 500HP before u start breakin stuff.

So yea adding a S/C or a turbo aint going to hurt

 

Doesnt any mod effect the GMPP warranty? Even a bad tune can ruin an engine. Anything but the basic bolt ons can effect reliability. I think the competence of the shop has the biggest impact on reliability.

 

Wish i had the money

 

Thanks guys.

I was looking at something like the Vette Doctor's Rx 450 which is:


Rx 450
This Vette Doctor prescription will produce approximately 450 horsepower at the engine and 400 rear wheel horsepower (380 lbs-ft of torque) on six speed cars. Horsepower will vary depending upon customer selection of camshaft and cylinders heads to produce from 360 to over 425 rear wheel horsepower. Horsepower for automatic transmission cars will be slightly lower due to additional drivetrain loss.
This prescription includes engine disassembly and inspection; custom porting and polishing of cylinder heads; high performance custom ground roller camshaft, valve springs, and chrome-moly push rods; titanium valve spring retainers; custom PCM; high performance air intake system; high performance exhaust system; engine assembly, performance dyno tuning, and chassis dyno testing.

Before and after chassis Dyno testing will be performed on your vehicle to ensure complete customer satisfaction.
The Vette Doctor limited engine warranty of one year or 12,000 miles, whichever comes first, to the original owner is included with this prescription. The warranty is limited to all parts installed by the Vette Doctors and does not cover damage to other engine or vehicle components.

Options:

High performance torque converter for A/T cars
2 year / 24,000 mile or 3 year / 36,000 mile warranty


Either that or the SC package, but I am sort of afraid of forced induction only cause I R a wimp and I don't want every jerk in a Cobra seeing the hood scoop and invading me peacefully communing with my vehicle.

I really do need to know if any of this will void the GMPP, but I suppose it would.

 

i am sure they do one hell of a tune on it too!

 

Unfortunately

but dang!! those mods are fun!

 

So that's it? All I can do is reach for 40 more HP without voiding the warranty?


I guess a blower is out of the question then.

Guess I'll just have to wait two more years when my GMPP runs out.


Will an LS7 fit in out cars? Maybe if I get one of those it will come with a warranty?

 

IMHO...Rather than getting the LS7, you would be better getting a 427 from one of the top tuners. They are built better and come with a warranty.

Any modification that causes a failure can result in GM denying that warranty item. I can tell you first hand...heads & cam will void the engine warranty...been there, done that.

 

You speak truth

You want to play, you have to pay. Simple.

 

I don't know about GMPP but with Warranty Direct you have to leave stock. Even changing the radio or exhaust will cancel your extended warranty.