Well like I have posted b4 im about to order my new setup. gt35r and later add the 2.3l. I was wondering how much reliability goes with that. My driveing habbits are pretty basic. I run my car hard maybe once a month, and on the once a month I dont think im running it half as hard as alot of other people. I truly baby my car and make sure she is always topped off with oil and other fuilds. I never launch my car, when I do get on it, its from a roll or im at a circuit track. *Circuit track only happens once a year*

With this in mind what kind of reliability of an ams built car with 35r and later built motor with 2.3 stroker and head work?

Thanks gents
B

 

A built motor done correctly would be just as reliable as a stock motor. Its just designed to take a bit more abuse.

Eric

 

It depends on how much you push it. Just like anything if you push it to it's limits it will break. I personally subscribe to the overbuild it and run it conservatively train of thought.

 

Out of curiosity for circuit racing why not just build the motor and head as a 2.0 so you would have the very high revs rather then needing to shift more?

 

so we can get over 100,000 miles on one if run fairly conservatively? (i.e. 400whp)

 

Having had 'built' engines in several of my cars, three things play a factor. One, the reliability of the vendor doing the work, two, the tune of the engine, and three, the way the car is driven.

The first two go without question, AMS can tune and build an engine, as good as, if not better than stock. Again, in my opinion, they will be more detailed oriented than the folks 'mass' producing the engines overseas. So, I wouldn't loose too much sleep over the build. I know in One Lap, they ran/raced one with a compromised head gasket and had no issues. Granted they tuned and drove with common sense, which is why the engine completed the circuit. Sounds like you understand that, so I would have no issues telling you there should be no problems with a built engine.

 

Another thing I have noticed about having an engine built like that and tuned like that..

An engine built for HP is also one that is effecient.. with the ability to load up maps for different driving, you can have a drivearound map that doesn't have "400 HP" and isn't taxing the car.

On One lap, we were driving around out of boost, getting 25-26mpg on the highway, and had the blown head gasket.. driving it like that, I am quite sure we could have gotten 100k (well, minus the blown head gasket probably)

Then when its time to go play like you said.. you load up the 400 HP or whatever you want.. and go play. Is it shortening the life.. sure.. but so does pushing a stock engine every once in a while.

Jon K
www.seat-time.com

 

Sooo umm yeah, why you stroking it instead of making it a fully built head and block 2.0 for 9k+ revs?

 

Going for both, but I think head work will be done b4 stroker kit (though im not sure).

 

My AMS spec bottom end(2.0) has seen 10,000 rpm, I Normally shift it at 9500 or so with race gas and 8500 with pump gas. I doubt I could get away with it on a stock bottom end.