Ok I did a search and couldnt find any info. If I were to get some of the sr20det cams to put into my b13 or is it just the exhaust cam that I need what kind of hp would I be looking at when putting this cam into my car. Is this a half ass upgrade? Im gonna be rebuilding my sr20 in September well atleast starting on it and Im trying to find some info.

This was a discussion of topic many years ago when there were not many choices for cams in the SR20's.

Someone else with more knowledge will hopefully chime in on this, but the DET cams are too aggressive for a NA engine. They are high RPM cams and do not set well on the lifters of NA engines. Your car will lobe like a crazy V-8 and not be very streetable. And your idle will have to be set very high to just keep the engine from stalling.

You should be able to pick up some JWT cams for about the same price and they were designed specifically for NA SR20's.

There is talk lately about HKS cams also. They have a lot of varieties to choose from and there will be a group buy on them soon. Oh and they are a lot cheaper than JWT or NISMO

Brent

nissan motorsports now sells the s3 JWT cams too. part number 13020-sr20s3. don't know the price, but hey....

The cams are not that expensive any like 170.00 buks per cam and I only need the one right? besides after September when my pickup gets here I will not be driving my SE-R every day like Im doing now. Im trying to rebuild my engine on a budget but I dont know if that is possible?

You are all wrong about the Nissan Motorsports Cams. These cams are Pulsar GTIR cams. The cams do make HP but they do not alow the valves to close properly, which is due to the design of the cam which was originaly made for a solid lifter head. They tend to be a little weak on the bottom end but when they get rolling they work ok. Most all other option of camshaft are better than these cams. These cams were only offered in the early days because there were no other options at the time. I also think soemone in the Motorsports Dept over looked the cam as beeing a solid lifter cam and all they did was look at lift and duration and figure all the SR20DE motors are the same.

Originally posted by Andreas Miko
You are all wrong about the Nissan Motorsports Cams.

Hmm? Andreas, I know you have a great deal of knowledge and have proven to be one of the best SR20 tuner around but it appears that I stated the same thing you did, just not with the detailed info you provided.

Anyhow, thanks for chiming in with the details. It was appreciated. ;)

So this is my question is it even worth the money to buy this cam for my car? That is all I really want to know. Well other than how many hp it has proven to make in the sr20de? Can anybody answer that?

Originally posted by ringgold
So this is my question is it even worth the money to buy this cam for my car? That is all I really want to know. Well other than how many hp it has proven to make in the sr20de? Can anybody answer that?

Well, between my reply and Andreas' reply, I would have figured you would not what it since it is not designed for a NA motor.

Not worth it. Go with the JWT or HKS. Proven HP and designed specifically for the NA engines.

The main difference for the Gtir cams isn't NA vs Turbo.
It is hydraulic lifters vs solid lifters. Like Andreas said, the cam profile of the Gtir cams is not designed for hydraulic lifter valve trains. Ringgold has HVLAs on his engine.
You are right in stating the profile was designed for a turbo engine, and not a NA one. But that in itself wouldn't rule out using them.
FWIW, I agree, why use a turbo profile on a NA.

Are there any dynocharts for HKS cams? I know they have a good brandname, but what are the gains?
I am always interested in another viable choice, competition is good.

Ringgold-
Don't get the nismo cams. You won't be happy with them.
If you are going to really build up your engine in September, you could always just save up for some C3s w/valve springs. Rob Cadle got some ungodly numbers on his highport with these, and with a stock ecu IIRC.
Price is comparable between C3s w/ springs and other cams w/a new ecu.

If you want to spend less, try Tomei or Comp cams.
Still good gains, just not the highest. Have you read the cam shootout comparo from SCC? Good info. The link has been floating around lately on the lists/boards.

I had been planning on the Tomei's but always changing my mind. Has anyone ever used Web Cam custom grinds? I know alot of people disagree with regrinds but if the car isnt gonna be driven every day then I dont think they will be a big problem. I know that they can make some good power but Im not sure on the Sentra SE-R. I called them today to see if they had ever made any for the sr20de and they had for a car that made about 560 hp and another set for some other sr20 that didnt make that much power. I wander who that was that made that much power?

I'm betting those high horse power engines were not NA SR20DEs. If that is the case, then the cams can't be given the credit, it would be the turbo.
Give it enough boost and HP would be high even with crap cams.

Regrinds can be good, BUT they would NOT be drop in and go. The time and cost of re-shimming all your rockers usually isn't worth it. It certainly would cost more than the difference between a regrind and a new billet/ oem base circle grind.
If you didn't reshim then your are not going to get the performance you expected and may even cause valve train problems down the road.
You could do it, but why?

Both Jun and Greddy have high HP SRs in sylvias.
I think Greddy's was 780-830HP. Of course the engines cost more than the cars.:)

So all the sr n/a motor have hydraulic lifters and all the turbo ones have solids? I have the Nismo Exhaust Cam and it works great. You need new rocker arms with these, they are like $19.something each and you need 8 of them, atleast that's what the Nissan Motorsport catalog says. I have a nice lope at idle, but nothing bad.

The GTIR DET is solid lifter, but the Bluebird DET is hydraulic, IIRC. Go figure.
All US sr20 n/a are hydraulic, I have not heard of any JDM sr20 n/a that are not hydraulic but don't know for sure.
You say you only have the Nismo exhaust cam, the intake cam is stock? Have you dynoed?
I don't doubt the lope, I like mine too.:)

Did you all know that the HVLA (Hydrolic Valve Lash Adjusters) and Rocker Arms have been revised. As I was taking my cams out of my W10 Avenir SR20DET to bleed the HVLA I noticed something was different about the HVLA as the small allen I use to bleed the HVLA would not fit, they made the hole on top of the HVLA pivot smaller and the hole that sits in the bore bigger. Also the Rocker Arm appears to look healthier in the rear where it sits on the HVLA pivot ball.


Part #

HVLA or Rocker Arm Pivot OLD# 13234-53J00
Revised NEW# 13234-53J01

Rocker Arm OLD# 13257-53J02
Revised NEW# 13257-53J03

I wonder when the change took place? In my 96 SE-R, the rockers are the 53J03s. When I swapped out a few, the 03s I put in were an exact match to factory.

How do you bleed your HVLAs or even know they need it? I need to go back in to replace an oil tube and while I'm in there...

Originally posted by peter96
I wonder when the change took place? In my 96 SE-R, the rockers are the 53J03s. When I swapped out a few, the 03s I put in were an exact match to factory.

How do you bleed your HVLAs or even know they need it? I need to go back in to replace an oil tube and while I'm in there...

Well W10 SR20DET is a 96 and it has the 53J03s and my 91 Sentra SE-R SR20DE has the old style 53J02s, they look the same from a distance but if you look closely you can see were they made changes.

When they are compressable by hand or what ever measure meant the factory recommends.

Also noticed a difference in the oil tubes on my Avenir vs USDM SR20DE.