they gotta be bullshitting me

[pche059]

hehehe
have you ever stripped your car down? try that and driving it around...
i found an extra 30whp by doing that

hahahahhahaha

i was redoing the entire car's audio installation..
changing new head units and eq, they were getting old.
but then i am holding back coz the money could only be used in either doing the engine or doing the ICE (all the way i mean)....

hey Sandy,
do you really think that Prestige's extractor can give 8-10% increase?
that's pretty close to HS's figure.

[T4 Primera]

It's certainly possible. The thing is, will it sacrifice any low end torque for a power peak in a narrow rpm band?

On a car with the cast iron exhaust manifold it is likely to see more gain than on a car with the factory tubular header like I have. (Found on the T4/TE).

In fact, fitting the T4/Te header might be a less expensive option although I don't know what gains it will provide, although I don't think Nissan would install a header that sacrifices low end torque.

You should have a look and compare them both.

[P10DET]

Originally posted by T4 Primera
I think P10DET built one based on Mike K's engine.

Yep, you'd have to be committed to N/A to commit to that kind of expense. For that kind of money there are other options out there returning more power. e.g. GTI-R engines for $2.5k - $3k.

Couldn't have said it better myself. You must be committed (or should be :right: ).

My engine was pretty much a copy of Mike's engine. I had a Swain coated header and he had an Extrude Honed intake manifold and larger TB (things that didn't do anything for power).

[pche059]

Hey Geo did you actually raise the compression ratio to 11:1 too?
how did you take care of the ignition and the fuel map? hard too?
And did you get the most gain from doing that that?

If I wanna build something close but maybe not as crazy as yous/mikes...
is there anypart that I can leave out (may be due to a low return in power)?

I was reading something about the valves were special designed and made....
how much does it help and how hard was it to get it right?

Can I still use Mike's page as a reference for my engine? keep in mind that i do have a roller rocker type engine.

[P10DET]

Originally posted by pche059
Hey Geo did you actually raise the compression ratio to 11:1 too?
how did you take care of the ignition and the fuel map? hard too?
And did you get the most gain from doing that that?

If I wanna build something close but maybe not as crazy as yous/mikes...
is there anypart that I can leave out (may be due to a low return in power)?

I was reading something about the valves were special designed and made....
how much does it help and how hard was it to get it right?

Can I still use Mike's page as a reference for my engine? keep in mind that i do have a roller rocker type engine.

Yes, I did raise the compression to 11:1. Fuel and ignition management was from a JWT ECU. The maps are somewhat similar to a turbo map from what I understand. Mike Pahls also built one a few months after me. We both had some detonation at around 3k rpm, but JWT has found the problem and fixed the maps.

Raising the compression doesn't add as much power as people think. Maybe 5-7 hp for the 11:1. It made sense to do when doing a rebuild, but I wouln't tear my engine down just to raise the compression.

You can get 11:1 CR by using NA Z32 pistons with stock combustion chambers. I would probably not get another head like I did with the cloverleaf combustion chambers. It's nice for detonation resistance, but probably not worth the money.

The valves were "tuliped" meaning the shafts were narrowed where they are in the air stream.

I don't think Mike has a page.

Most of the things you can do will be the same, but of course, you cannot use the same cams.