1g cams in 2g?

[2GEEZEY]

Correct me if im wrong, but aren't 1g cams a little bit more aggressive than 2g cams?

 

[95burgundyesi]

Correct

 

[clownface]

pretty sure that what i remember is that the 1g cams are in fact an upgrade over the 2g cams

 

[2GEEZEY]

okay cool, thanks guys! thats all i needed!

 

[RamenPride]

Would there be any benefit to running just a 1G exhaust cam and 2G intake cam? Reason I ask is that I was planning on installing 1G cams that I had laying around, but the tap broke off flush and I can't get it out....

 

[Boosted98gsx]

You are better off running the cam selection that provides the largest duration and the most overlap (in a turbo car). This can only be measured and seen graphically. I do not know of anyone who has a duration / overlap graph for OEM camshafts.

 

[JEFFREYCASTGSX]

There a tiny wee bit more aggressive.

 

[dsm-onster]

The oem peak lift and the open close degrees (to calculate duration and total cam advance) are right in the Factory Service Manuals for these cars.

--1990-1992 turbo 5speed cams: 244 ex, 252 in
--1990-1994 turbo auto: 244 ex, 244 in
--1990-1994 n/t: 244 ex, 252 in; intake cam is advanced about 5 degrees vs. the 1990-1992 turbo 5speed, 1993-1994 turbo manual and 1995-1999
--1993-1994turbo 5pseed: 252 ex, 252 in; the intake cams have .05ish more total lift than all the other intake cams but the exhaust cam has the same lift as 1995-1999 cams
--1995-1999 all trannies: 252 ex, 252 in; same peak lift on both sides as 1990-1992 turbo 5speed, and all auto & n/t cams

All you need is a 1993-1994 intake cam to have the best dsm cam combination since you have a 2g. But you're only gaining a TINY bit more lift. You're not changing the timing or total duration even.

 

[lilbro717]

would there be any noticeable gains in doing this?

 

[Boosted98gsx]

would there be any noticeable gains in doing this?

You would gain some airflow theoretically, but for the effort, it's honestly not worth it. You're better off sourcing some aftermarket cams.

 

[debbie]

I heard that you can use the exhaust cam from an evo 6 as an intake cam but again as above said the benefits are minimal

 

[rtincher22085]

The oem peak lift and the open close degrees (to calculate duration and total cam advance) are right in the Factory Service Manuals for these cars.

--1990-1992 turbo 5speed cams: 244 ex, 252 in
--1990-1994 turbo auto: 244 ex, 244 in
--1990-1994 n/t: 244 ex, 252 in; intake cam is advanced about 5 degrees vs. the 1990-1992 turbo 5speed, 1993-1994 turbo manual and 1995-1999
--1993-1994turbo 5pseed: 252 ex, 252 in; the intake cams have .05ish more total lift than all the other intake cams but the exhaust cam has the same lift as 1995-1999 cams
--1995-1999 all trannies: 252 ex, 252 in; same peak lift on both sides as 1990-1992 turbo 5speed, and all auto & n/t cams

All you need is a 1993-1994 intake cam to have the best dsm cam combination since you have a 2g. But you're only gaining a TINY bit more lift. You're not changing the timing or total duration even.

So from my auto cams I'd benefit from the 95+ cams swap instead of 244 lift I'd have 252 lift more air flow correct? I have some 1g cams that are stamped with "F" and the end and "A" at the pulley side. i have both sets 2g and 1g what would be best thanks.