Was offered a good price to put on the Nitrous Express "N-Ter" cooler kit

[OrangeSpeed]

Well there is a good chance I will buy it from you but im still just not sure if I should do it or not, this thread has basically gone back and forth about it so we will see. Thanks

 

[big_ben]

I can give you some insight on it. The car they were talking about was an RX7 which is a rotary and also runs like 20psi of boost. The car you are talking about putting it on is a reciprocating piston engine and only runs up to 8psi. They are comparing apples to oranges. There is NO comparison that can be done between a rotary and a piston motor. One detonation on a rotary motor and the apex seals are gone. ZERO FORGIVENESS. Piston motors are more forgiving. Anyway, at the low psi you are running, there is no danger. Don't expect to see 50hp with it though. I'd say you could easily expect 10hp gain at the wheels. But witht he current intercooler, you can't use it. You need a larger front mount.

 

[OrangeSpeed]

I asked the guy at the shop about that, whether i could use it on the stock intercooler or not and he said thinks he can mount it right in front of the stock intercooler. I believe thats what he did on the 1.8T is mount on the stock intercooler, not totally sure on that one though. Thanks

 

[big_ben]

He may be able to do it, it might look funny, but I'm sure it would work.

 

[OrangeSpeed]

Should I turn up the boost first? Or do you think it would be affective with the stock boost as well...... can you over intercool a turbo? Im not sure how that would work, i know too big of an intercooler willl slow you down on lower boost but never really heard of anyone overintercooling, just curious. Thanks

 

[big_ben]

There is no such thing as over intercooling. All an intercooler does is cool down the compressed air.

When any fluid(air) is comressed, it gains some heat. When a fluid is heated, it expands and becoms less dense. Thnk of boiling a pot of water. When it starts to boil, it seems like the water level is higher than when you first started, that's because the fluid has expanded. Or when you put an empty water bottle in the freezer, in about 5 minutes, the bottle will partially collapse on itself. That's because the fluid(air) inside it has contracted and become more dense.

The cooler you get the air, the more air you will get inside the motor. Trust me, you will not cool it so much that you will need extra fuel to compensate for it. This is what the other people were stating. That is simply not true. It may be true if you were running 20psi like some RX7's, but not for a low psi setup like the MSP.

Actually, if you use the N-tercooler, you may not need to turn up to boost. It may give you enough of a dense charge that you will notice the same power gains as if you turned up the boost 1 to 2psi.

As for what you were talking about with pressure drop, the small intercooler that is on the MSP will have hardly no pressure drop. Pressure drop is caused by having too big of an intercooler with too little psi going through it. There is no need for a huge front mount if you are only running 5 to 9psi. You will actually lose some hp because the air will be cooled so much that it loses some of it's compressivness. Remember, when air is cooled, it contracts and becomes dense. When air is heated, it expands and becomes less dense. The trick is to find the middle ground and match the right size intercooler to the amount of psi you are running. But that's a lot of math that you have to do. It's really not that hard though.