Nitrous on High mileage engine

[greengrandam84]

Just wondering why I always hear its not the best thing to run N20 on an engine with high miles?(100k+) What would need to be done to make it safe or safer to run Nitrous?

[1988GTU]

There are many things wrong with using a motor not setup and/or with high miles.

The ring gap is wrong
Tune is off (fuel timing/spark)
Cam is not right for it
Everything is jsut not spec'd for it



With that aside, it's a cheap durable engine.... Spray it to death!

[greengrandam84]

Kinda confused?

Only looking to run 35-50 shot. What if one were to get an MSD ignition to control the spark/retard and run it a bit rich to prevent detonation?

[1988GTU]

Is this just a car to beat on at the track or will it have a life in the DD world?

[greengrandam84]

it is and will still be a D.D.

[1988GTU]

I would just get it dyno tuned for a 50 shot and call it done. Or you can pick up learning the curve of OBD1 and moates stuff (search google "moates")

[greengrandam84]

OBD1? its an 00' Grand Am isnt it OBDII?

[1988GTU]

How were we suppose to know???????????????????????????????????

Find out if you can get HPtuner or someone with a DHP to let you tune your car.

[3400-95-Modified]

DOOO IT!!!!!!!!!!

I ran a 100 wet shot on my stock 3400 daily... Granted it was a rebuit motor... BUT I still went through FelPro headgaskets pretty easily... This new motor in the project will always get GM headgaskets hopefully that holds up to nitrous better

[greengrandam84]

well I'm about to do the LIM gasket replacement. Should I used the felpro perma-dry gaskets or get the GM ones? or is there no difference for the LIM gasket. Im def. not gonna run 100 shot, hoping for 50 and maybe a 75 here and there.