Thread: Rev limit, Tomei Procams and oil burning (check #1 and #3)

JWT S3R are better than Poncams. Bigger lift and duration.

jer_760: My point was, its not good for bottom end to rev to 8k with 4cw, lightweight pulley and flywheel. This been discussed before.

Use the RR HLA's dude and you'll be fine.
Lift is not that essential after a certain extent for N/A Motors.. Think about it, when the valve's open .500" say, having it open at that level for longer, has more effect than having it open more for a short duration.
When choosing a cam the duration is vital.
I wouldn't personally bother with S3R's again.. Or Poncams (even though they have produced ridiculous dyno figures over on AOC). Those kind of cams are for all bolt-on motors really, don't get me wrong I had fun in mine with all bolt ons, intake, header, exhaust, flywheel, pulleys, FPR and JWT S3R's, it was pretty good.. But going back to stock, wasn't a big downgrade TBH...
Also this shit about revving a 4cw high with Fly & Pulley being bad.. Well we'll see about that.. Mine's been knife edged & properly balanced, and I'm using the highport mains girdle for strength, I'm confident the 4cw could be good for high revs if the proper precautions are taken.
Joe

Sh*t? Are you serious? Im done here...

Well whats the problem.. if its properly balanced why would there be an issue?
The 4cw is balanced just as well as the 8cw from the factory.
Joe

I know it's been discussed many of times, and my opinion on the matter will never change. I have had my ve with a lightweight flywheel and pulleys revving to 8k-9k for almost 5 years and over 120,000 miles, plus the 40k-60k miles it had on it when it was pulled for the importer. Bearings still look great.

Don't go off of what you "hear", go off of actual experience....hands on experience.

Precisely.... Cheers dude.
Joe

I'm going to buy the Catcams 1600516 (or 518, lol) influenced by you, so let's hope they will be good

I know retainers are not needed, but would you change them once you change the springs? (I read you asking in AOC, did you install the BC retainers finally? DE or VE ones?).

Best price I got for the cams+springs is 814 usd shipped, any online uk shop a bit cheaper?

Looking for dynos of "extreme" cams in a DE, I found a thread in the AU Pulsar group (Vumnoo's N/A sr20de build up (on the cheap) PICS) where a Pulsar with jwt c2 cams and very slight mods did good numbers (150whp):

Do you have anybody who know how to (re)build the SR20 engine? How to set cam gears? How to tune it? I hope you will not end up like a lot of guys who started with big projects that cant handle them.
If you make easy setup with boltons, you can always upgrade plus you will learn something. It does not work well backwards.

SR20DE RR 175HP (~150whp)

- JWT S3R cams
- SSAC header
- 2.25" exhaust
- K&N filter
- stock ECU, flywheel, pullies, etc.

I'm using BC +.5mm Valves, BC Valve Springs and Titanium Retainers yeah dude.. Not taking any risks really as I'm going to 9000 RPM hopefully.

On the cams.... I know for a fact I can get Catcams for around £400 delivered to my door.. It might be slightly more, say £450 max, here in the UK.. If you want me to order them and ship them out to you to save you some money, I don't mind doing that at all dude.. PM me yeah?
Joe

Yes, thanks for worrying about me

Although he is more focused on modifying PSA rally cars, my mechanic also knows well the SR20 engine.

My "project" is not specially ambitious, so let's all hope I can handle it




You said 350 pounds! Lol, will PM you later, thanks a lot