ok i have a 97 jdm integra type r and i wanna upgrade the camshafts. a friend of mine suggested to use some marxworz cams. What do u guys think and what other camshafts out there should give me good gains. oh my setup is

2.5 " piping with spoon exhaust
b&m fuel pressure regulator
fields controller
msd 6al
power rev racing intake and throttle body gaskets
cold air intake
skunk 2 cam gears

 

It depends<LOL>

If the cams have over 12mm lift you will have to go to an upgraded valve train and that gets much more expensive with additional reliability problems.

If the cams are too zippy you lose effective compression due to increased overlap. If really zippy, the powerband will shift upwards and you may need to change gearing. Cams can make you slower if you get carried away.

If the primary lobes are much hotter than the ITR's, than it gets lumpy at an idle and depending upon your emissions testing, that could be a problem.

Real hot cams can be a temptation, but you have to make them part of a balanced system. You might want to consider adding a header and a bigger cat' and that will make a "feelable" difference with few downsides.

As an aside, I have a JUN II intake cam advanced 5 degrees and a stock ITR exhaust cam. Stock valve train. If I understand correctly(?) an intake upgrade usually gives about 85% of what you get from the pair. I first installed it straight up and it didn't work worth sh,,,,,,,,,,, until just before the redline. Advancing it 5 degrees brought the power band down where its real nice. SMSP header, free flow cat, 2.5" exhaust with Magnaflows is sweet.

Thoughts?

John

 

Listen i jus want 2 know if this brand cam will make a difference in my car dats all cos am on the verge of buying them

 

Yes they will.