search roller rocker camshaft

[primera GT germany]

hi!

which producer have a camshaft for roller rocker??? i know about JWT...

-chris-

[enohand]

jwt s3r is the only option IIRC

[primera GT germany]

mmh thats not good...

[primera GT germany]

can i drive non-RR cams in my RR Head???

-chris-

[plastikcaktus]

tomei and piper make roller rocker cams. and no, you can't put non-rr cams in an rr head.

but those would probably be hard to get. jwt really is the best. I'm running s3r's and i love them.

[stracyznski]

Best best on a RR head S3R cams are the best way to go. And no you can't run non-RR cams in a RR head...

[markbuts3]

There's also Catcams in Belguim. Swiatek in Poland. Piper cams and Kent cams in the UK.

JWT are probably the biggest lift and duration though.

[primera GT germany]

@plastikcaktus: at which rpm the cams bring more power???

-chris-

[plastikcaktus]

the cams gave me power from 3500 to about 6500. They pull great in the midrange rpm's.

[*Knowledge*]

</- Looking for a mechanic to install S3R cams in SoCal. :-\

[plastikcaktus]

It's a seriously easy install. Took a few hours (and beers), and we were goin slow with it. You only have to worry about snapping the cam...but if you tighten it in the correct order it's no issue.

[*Knowledge*]

If I were being assisted by someone who has already performed the install I'd be game.
Otherwise...

[stracyznski]

I'm doing a cam swap this weekend. I looks pretty much straight forward from what I've read....

[*Knowledge*]

I'm doing a cam swap this weekend. I looks pretty much straight forward from what I've read....

Last week I searched 'Cam Install" on the site, The first page of threads were horror stories FTL. http://www.piranha-fury.com/pfury/style_emoticons/default/no.gif

[stracyznski]

Last week I searched 'Cam Install" on the site, The first page of threads were horror stories FTL. http://www.piranha-fury.com/pfury/style_emoticons/default/no.gif

LOL... Probably famous last words, but I don't see any issue except loosing the chain off the bottom sprocket...

[Uk-SRi]

well it took me 2 hours from bonnet up to bonnet down, and that was with some of the rocker cover nuts sticking and having the studs back out, if that happens you just have to go round and round the valve cover loosening each nut a bit at a time until you are free, then get them apart in the garage. you cant keep undoing a rocker cover stud all the way out as it will start binding if the one next to it is not undone enough too.
Take your time, watch for the cam not pulling down evenly, if need be just start going through the tightening sequence early and a turn at a time if you think it might be catching. It will take a bit longer, but the cam wont break.
Use the JWT cam change pdf as reference, print it off before you start.

Mike

[stracyznski]

Swaped over the exhaust cam today. Dead easy. Only problem I encountered was torquing the cam sprocket nut up as I didn't have the right sized spanner to hold the cam still.
Anyway, started on the intake cam and ran into a seezed bolt on one of the cam bearing caps. This one looks like it could be a bit of a twat to sort out....

[Uk-SRi]

Tighten a fraction of a turn first to break the seal.

Mike

[p10det]

im wanting some one on the east coast here to come to me to do their cams cuase i have yet to see the outcome of the s3r's

for first tim installers take your time and pay close attention of what you are doing and understand why you have to do it. this will help ya garrentee a good install.
and do not ver torkthe cams they do not requir that much tork

[stracyznski]

Cracked the bolt out this morning, but rounded off the head doing it. Apart from that, Absolutly no problem with the cam swap. Pretty much straight forward...

[markbuts3]

Cracked the bolt out this morning, but rounded off the head doing it.

Single hex sockets ftw! ;)

[stracyznski]

Thats the way I got it off, Mark... Just need to find a good bolt to put back? Don't suppose your got one on your engine...?

[markbuts3]

Doubt they'd be the same length etc on a non RR ???

[stracyznski]

VE is non RR mate...

[markbuts3]

VE is non RR mate...
I know it is. But checking the part numbers for those bolts against other Japanese models and UK models.

Which one is it ?? From the looks of it there are thin ones and thicker ones plus the two on the cap where the dizzy goes.

The thin one looks like it's the same as RR bolts. 13058-2J201-
The thicker one seems like it's only VE and GA engines. 13058-53Y03-

Ask Paul on CN to sort you one out. Maybe Mick has one...

[stracyznski]

I know it is. But checking the part numbers for those bolts against other Japanese models and UK models.

Which one is it ?? From the looks of it there are thin ones and thicker ones plus the two on the cap where the dizzy goes.

The thin one looks like it's the same as RR bolts. 13058-2J201-
The thicker one seems like it's only VE and GA engines. 13058-53Y03-

Ask Paul on CN to sort you one out. Maybe Mick has one...

Intake cam, second rear bolts from the left for the cap that have metal plate over the top...

http://img.photobucket.com/albums/v11/stracyznski/btcc2711.jpg

[p10det]

what brand and stage cams you put in ther

[stracyznski]

what brand and stage cams you put in ther
SR16VE cams...

[markbuts3]

Intake cam, second rear bolts from the left for the cap that have metal plate over the top...

http://img.photobucket.com/albums/v11/stracyznski/btcc2711.jpg
Still no idea. The FAST illustration only shows on cam cap and 2 bolts, one says 10 per car and the other says 8 per car, then the 2 bolts for the dizzy cap.

[stracyznski]

It's 13058+A. All fpur of the bolts along the rear of the engine are the same. Only exception is the bolt for the spray bar feed. That about 1/2" longer...

[G20 Dan]

if u belivethe camlist of piper then they have the highest lift and duration for the RR head!! I found that out after i got my JWT. I wrather would of got them if i would of know before.
http://www.pipercams.co.uk/NewPiperWeb/redesign/PiperCamFrames.html

Dan

[markbuts3]

Piper are almost $770 though. Also it's difficult to compare when they don't tell you what lift the duration is measured at. The lift is about the same as JWT S3Rs.

Swiatek do some cams with 7mm lift at the cam, the rocker ratio is approx 1.63 so 11.41mm and the duration is 274* measured at 0.15mm (0.006"). If they started and finished measuring the duration at 0.003" lift like JWT cams then the duration would be even bigger.....and they're only $450

Catcams make some huge cams. 12.05mm/11.6mm lift and almost 300* duration (at 0.1mm lift) but you'll need different springs. Their cams are about $660 from cast blanks and about $990 from steel billets. For non roller they do 12.75mm lift and 300* duration.

[G20 Dan]

As i asked JWT they didn't wanna tell me the durationmeasur.. don't know y but dosn't matter anymore.
the pipers are maybe 770$ but the shipping for the jwt's to germany +customs was about 200€ so the pipers would actually be cheaper for people outa europe cause they're outa UK right.?
never heard from the them swiatek from were are those. maybe i'll sell my jwt's and get them.

[markbuts3]

JWT measure duration at 0.003"

Yea Piper are in the UK.

Swiatek are in Poland. A couple of Polish guys have posted about them on here.
http://www.g20.net/forum/showthread.php?t=41359
http://www.g20.net/forum/showthread.php?t=43393
The Polish forum has an English section where you could ask about them.. http://www.nissanklub.pl/

Catcams are in Belgium btw.

[G20 Dan]

Thanks didn't kow all that.
I'll definetly talk to my work bro he's polish will maybe make it esyer fro me.
think it i'll be good to get springs though. don't have any yet but there not that pricy. if i sell my JWT's it ill be ok i gues.

[primera GT germany]

@plastikcaktus: which valvesprings you has installed???

-chris-

ps: i will order the S3R Cams in a month ;)

[plastikcaktus]

@plastikcaktus: which valvesprings you has installed???

-chris-

ps: i will order the S3R Cams in a month ;)

I'm running stock springs. The s3r's didn't need the upgrade.

[primera GT germany]

how much is the lift from the S3 cams in mm ???

-chris-

[G20 Dan]

how much is the lift from the S3 cams in mm ???

-chris-
11.43mm

[primera GT germany]

thx so i use my original valvesprings too... eventually adjustable cam gears...

-chris-

[G20 Dan]

thx so i use my original valvesprings too... eventually adjustable cam gears...

-chris-
yap, yap and yap
if u are thinkin of getting springs the RR and non RR are the same if u buy some.

[primera GT germany]

what?! the non RR and the RR have the same valvesprings? when i upgrade them i must not care if they non RR or RR?!

-chris-

[ChickenWing]

theres another option for the us rocker rollers and thats the UK GT intake camshaft. supposedly good for 5-8hp.

[primera GT germany]

what??? i dont understand u... i ve spoken from the difference between RR valvesprings and non RR ;)

-chris-

[ChickenWing]

sorry i was just referring to a different camshaft. i know nothing about valve springs.

[biomimetic]

Thumbs up for Kent cams - of you get desperate enough you can always give them specs and they'll grind the cams to it. That's just how nuts they are. No one has ever posted dynos for the Tomei, Catcams or Piper. Why is that?

[DaMasterPNut]

Offtopic:

Is there a how-to or write up on how to change your cams?

[primera GT germany]

if anybody know the difference between valvesprings from non RR and RR let me know!!!

-chris-

[p10det]

if i hd roller rocker valve springs i would compare. but an edjucated guess not ever compreing them. tht they are either the same a bit unlikly or nissan changed the seat presure on them but they are still interchangable. my second sudgestion is what i feel nissan did based on knowing nissan. but i have not built up one rollr rocker engine yet. also i can bet that all lash adjusters can be switched. between years if you are budget and hve spare parts

[primera GT germany]

hey guys a lot of time is gone in the land...

JWT cant sell valvesprings, because they are out of sock :(

my question is, have anybody informations about TOMEI-cams they have the smallest lift and the smallest duration? but tomei makes so good parts why they have so "bad" cams?

plastickcaktus said the JWT comes between 3500-6500 but thats not soo good i think. pipercams "ultimateroad" comes between 2500-7400rpm thats much better and they have 11.61mm valvelift (JWT only 11.43)!

i must drive all this cams with stock springs because never i can buy other valvekits... can anybody sai me if i can buy rockerarmstopper for a RR? pipercam said that i need lashkilleror rockerarmstopper...

my prices for the cams in germany:

Tomei cams with pulleys 877,50€
JWT cams 679,00€
Pipercams ca. 550,00€

thx for help -chris-

[Uk-SRi]

Well with cams extra lift and duration means more power up top and less power at low revs, it is hard to escape from that, so I would question wether the piper cam really can give extra power *EVERYWHERE*, it just doesnt work like that. but as they are cheap, and have more lift get them and the +-4 degree camwheels from P@.

Mike

[primera GT germany]

soo, i think i take the pipercams + tomei rockerarmstopper + tomei valvesprings and take my rev limit to 7500rpm... (i get information that i can drive valvesprings from SR20DE non RR in my SR20DE RR)

here my actually prices for only the camsets:

JWT 679€
Tomei 519€
Piper 650€

prices for tomei:

valvesprings 329€
double valvesprings 889€
rockerarmstopper 139€

fine-tuning i make with my piggyback...

-chris-

ps: in germany the parts are very expensive i think i must work two months for the headparts ;)

[Uk-SRi]

rocker arm stoppers are controversial, it means that instead of spitting a rocker if you over-rev you are then guaranteed to break the valves and head.

Mike

[box]

does anyone have an approximate idea of what kind of gains you can expect from the s3r's?

[Loek]

Chris: just go with the cams and don't change the valve springs or buy teh stoppers. Most of the RR-guys have done this without problems. You will loose some low-end power, that is unavoidable. You will feel a big difference from 3500 rpm upwards, however.

[Uk-SRi]

soo, i think i take the pipercams + tomei rockerarmstopper + tomei valvesprings and take my rev limit to 7500rpm... (i get information that i can drive valvesprings from SR20DE non RR in my SR20DE RR)

here my actually prices for only the camsets:

JWT 679€
Tomei 519€
Piper 650€

prices for tomei:

valvesprings 329€
double valvesprings 889€
rockerarmstopper 139€

fine-tuning i make with my piggyback...

-chris-

ps: in germany the parts are very expensive i think i must work two months for the headparts ;)

The RR rocker is the reason for the lower rev limit, I believe the springs are the same, Nissan went for an RR head to lower the valve train losses, they also fitted thinner rings in the pistons at the same time for the same reason.



Mike