Just wanted to know, how many miles do you think is too many for a supercharger? What about NOS?

Do a compression test, do a complete servicing (even if you don't really need it and then BOOST away. I personally would be hesitant to do it on a car over about 180,000 miles, but then again, these are some strong engines.

LoL, wow 180,000? I was thinking 80,000 was too many.

I agree with Medicsonic if the engine runs good and passes the compression test then why not?

I would not reccomend installing a supercharger in your car when it succeeds 100,000 miles. The reason I say this is that by that time, the supercharger overrides the value of the vehicle. N.O.S., however, is a whole other case. I would install this at any mileage, if the engine is in good condition. However, were the engine old I would not count on 100hp+ shots. Let me put it this way: You can install either at any time if the engine is in good condition (cleaning the exterior has nothing to do with it). Just trying to help .

Check the compression, all cars are different, especially with high milage. A lot depends on driving style, maitnace, etc. My max has 120,00 and runs great, but I have seen others that are similarbut perform poorly.

I would say 140,000... get a compression test...

Hey man, there are no engines with "too many" miles..

- Mike

ZWW21 is getting a SC installed today on his 97 GXE and he has 130K miles on it. He had a certified Nissan Mechanic do test on the engine and he gave him the thumbs up to do it. Nissans have great engines, but like everyone else has said get a test done before doing anything. Take Care

Will a dealer do this compession test? Do I jsut ask for them to do a compression test on it or do I also tell them Im thinking of running NO2 on it? Thanks

K

Yes, the dealer can and will, but expect to pay a bit for it.

I just went down there and they said $70 for that test. They also said I "should" have them upgrade some things since they will have the engine mostly opened up to do the test. Are they just trying to get some $$$ or should I upgrade some things while it is already apart? Thanks.

K

The compression test doesn't involve 'taking the engine apart'. It involves taking out the spark plugs and disconnecting the fuel pump and putting a guage into where all the plugs go, then cranking the engine. Ask him what 'needs to be replaced'.