ba ha ha ha

Good stater information... here is a more specific question: is it worth stepping up from S3s to S4s on a IHEP + ECU upgraded highport?

Yes, it is.

ba ha ha haWhy did you do this?

C

Chris you do realize this was two years ago.

Also just for anyone that wants to know I have had all 3 sets of cams.
S3s are great cams. They are awesome for a mild daily driver.
S4s are great cams. They work great in turbo cars and great in N/A cars.
No springs and retainers needed. And they are the best bolt-on for the SR20 motor.
S5s are JUNK. Dont buy them they break the factry springs. I wouldnt take a free set.

I know, but he edited it last month. I was prompted by a PM from a member asking what happened.

C

what about s5's with springs and retainers?

i wouldn't run after market cams without em' but thats just my personal choice.

well this sucks, here I have S3 cams, and I was thinking about going with something else maybe, as i will probably only see 155 hp at the wheels..

maybe I'll just stick with the S3 cams.. 155 on a 2500 lbs car should be plenty fun for me.

How long have you run the S4's with factory springs and retainers? Im looking for cams at the moment and am wondering whether or not to upgrade the S's and R's.

I ran s4's on stock s/r for almost 2 years. Never had a problem. Before that I had S3's for about a year. IMO here is the difference between 3's and 4's on a non boosted car:

S3 cams will be stronger than S4's below about 5000 rpm. Above that S3's will be better than stock, but not as strong as the S4's will be. S4 cams will be about the same as stock to maybe 4000 and then they will pull away. S4's make the most power in the 5-7k range.

So if this is a daily driver and you only occasionally really romp on it, you might be better off with S3's. If you are always running up to 6000+, you'll be happier with S4's. If you want the best of everything, save your money and get a VE.

Hope this helps

And on a boosted car.....

Jim Wolf cams
S3 cams-.442" LIFT / 260 DEG.DUR.
S4 cams- .464" LIFT / 266 DEG.DUR.
S5 cams- .503" LIFT / 281 DEG. DUR

C1 cams- .476" LIFT / 264 DEG. DUR.
C2 cams- .500" LIFT / 275DEG.DUR.
C3 cams- .526" LIFT / 285 DEG.DUR.

BrianCrower cams
BC stg 2- .475 LIFT / 264 DEG.DUR.
BC stg 3- .495 LIFT / 272 DEG.DUR.

Nissan (stock)

Stock low port (95-up)-
IN- .341 LIFT / 232 DEG.DUR. - EXH- .362 LIFT / 240 DEG.DUR

Stock high port (91-93)
IN- .394 LIFT / 248 DEG.DUR - EXH- .362 LIFT / 240 DEG.DUR

Stock GTI-R cams-
.394 LIFT / 248 DEG.DUR

Roller Rocker SR20-
IN- .394 LIFT / 232 DEG.DUR - EXH- .362 LIFT / 240 DEG.DUR

SR20VE-
Low lobe IN-.331 LIFT /220 DEG.DUR - Low lobe EXH-.260 LIFT/244DEG.DUR
High lobe IN-.421 LIFT /264 DEG.DUR - High lobe EXH-.407 LIFT/268DEG.DUR

SR16VE N1-
Low lobe IN-.331 LIFT/ 220 DEG.DUR- Low lobe EXH-.313 LIFT/ 244DEG.DUR
High lobe IN-.472 LIFT/288 DEG.DUR - High lobe EXH-.469 LIFT/ 288DEG.DUR

Yea what about their performance on a boosted car? Which is best for a det?

Yea what about their performance on a boosted car? Which is best for a det?

I think it's going to depend on your turbo size and how many PSI you're running, and what results you're looking for.... low end torque? linear torque curve with high rpm power? all top end?

Jim Wolf cams
S3 cams-.442" LIFT / 260 DEG.DUR.
S4 cams- .464" LIFT / 266 DEG.DUR.
S5 cams- .503" LIFT / 281 DEG. DUR

C1 cams- .476" LIFT / 264 DEG. DUR.
C2 cams- .500" LIFT / 275DEG.DUR.
C3 cams- .526" LIFT / 285 DEG.DUR.

BrianCrower cams
BC stg 2- .475 LIFT / 264 DEG.DUR.
BC stg 3- .495 LIFT / 272 DEG.DUR.

this would be really cool if you also included all OE cams for the car too.. and doesn't Toda make cams for our cars?

The setup would b a de+t with a t/28 and my hp goal is 280ish with no more than 12psi of boost.

this would be really cool if you also included all OE cams for the car too.. and doesn't Toda make cams for our cars?
Those are all dealt with in Calums Cams thread.

http://www.sr20forum.com/sr20de-technical-corner/44420-cams-cams-more-cams.html?highlight=cams

Those are all dealt with in Calums Cams thread and here is the archive'd link of the Great Sr20 Cam List - V 1.03.

http://web.archive.org/web/20050910184245/http://web.utk.edu/~cjohns32/camlist.htm

corrected for you. :)

but thanks sir!

corrected for you. :)

but thanks sir!

Ha as long as we get there in the end.

I have always wondered about the Japanese cams vs JWT and BC's. There is so much less experience with the Japanese Cams.

Ha as long as we get there in the end.

I have always wondered about the Japanese cams vs JWT and BC's. There is so much less experience with the Japanese Cams.

yeah the JWT cams are so easy to come by used.. I have a set of S3's but I'm thinking of upgrading to S5's while I wait to build another motor

I have a RR motor and B15 transmission sitting in a garage in KC waiting for me to do something with it.