Klasik olucak ama en az Gtx 30 takın derim.
Doldurma olayı dert değil , Nos ile de desteklerseniz çok memnun kalırsınız.
Arkadan itişli olduğu için dragda da çok güzel süreler elde edilebilir.
Klasik olucak ama en az Gtx 30 takın derim.
Doldurma olayı dert değil , Nos ile de desteklerseniz çok memnun kalırsınız.
Arkadan itişli olduğu için dragda da çok güzel süreler elde edilebilir.
brain crower stage 2 var.
ama 5557s gtx3071 ve 3076 beni çok dusundurmekte biraz daha bekleyip vet kapak mi yapsak diye dusunmuyor değilimvet biraz yabancı millet sr20vet diye bakbilirsiniz kısaca 9 k dönüp bildigimiz vtec açan tipi
sr20det kapak yerine sr16 veya sr20ve kapağı değişim sonucu elde edilmesi
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gtx3071 in seni memnun edeceğine inanıyorum. ayrıca gt serisine göre daha verimli. gt alıp sonra gtx alsaydım keşke dememek için gtx iyi tercih olur.
It’s better to walk alone, than with a crowd going in the wrong direction... (Grant)
bc yi alirken denk geldi aldım 1 senedirde kullanmaktayim degiştirebilirim dert sorun degil dönecegim devir 7500 7600 civari bu devirlerde sr20det icin kırılan duymadım ama başka tip araclarda kırılmış catlamış olabilir
şuan en popüler sr20det egzantrigi
Jim Wolf Technology website
S3 diye geciyor ama high lift degerli S3 HL alabilirim
ama s4 egzantrik te alınıp takabilirim
Uyarılarınız icin teşşekür ederim dikkat e alacagim sonucta şuana kadar sorun yaşamamış olmam sorun yaşanmamış anlamına gelmez
egzantrik listesinide sunayım ve konuşulanlar
Quotes heard on the ‘net – take these with a grain of salt.
From Jay Whitley (excerpt from a post on www.sr20deforum.com):
”The RWD and FWD cams are exactly the same and they are interchangeable, no problem. The only thing that is different from an OEM FWD cam and an OEM RWD cam is the length of the dowel pin on the exhaust cam.
The FWD OEM cams (intake and exhaust) both use short dowel pins). The RWD OEM intake cam uses a short dowel pin and the exhaust cam uses a long dowel pin. This long pin is there to engage the crank angle sensor/distributor drive gear.
So, all you need to do use FWD cams in a RWD SR20 is to remove the long dowel pin from the OEM exhaust cam and install it into the FWD exhaust cam. Done.
Any machine shop that resurfaces flywheels can do this. It requires the same tool that they use to remove the dowel pins from flywheels. It is a slide hammer.
I installed a set of JWT S3 cams in my customer's RWD S13 Silvia red top just recently."
From Andreas (excerpts from posts on www.sr20deforum.com):
“As far as cams go they do not work the same NA as they do on turbo. All I will say is this: the S4 works better than the C1 in the racecar. Also if you are going to rev a car high the better combo is more duration and less lift S4 verses higher lift and less duration. The more lift you have the quicker the valve will float. As far as cams go the turbo dictates more than the cam. T78 with S4 is still making power at 8400 and goes linear to 8900 before we start to see any power loss.”
“In my travels of SE-R I have seen to bone stock SE-Rs that have gone up to 9000 RPMs. I was so baffled by this I had to put a NISSAN Consult Comp on it just to make sure my eyes were not fooling me.
It is possible for a JWT comp to go past 8000 RPMs, just have them program it with no rev limiter. It’s that easy. Here is what happens when you go past 8000 RPMS the comp just keeps on thinking it is at 8000 RPMs and can not make any more adjustments, so the higher you go in the RPMs past 8000 your fuel map and timing map will progressively wonder off from where it should be.
I always get my comps for my personal car with no Rev limiter because having the rev limiter kicking at full throttle cause a whiplash effect in the motor that causes the rocker arms to get thrown out. What happens when this happens at high RPMs: broken pistons, bent valves and broken rockers. So as long as you have [aftermarket] valve springs and retainers I would advise you to go for the no rev limiter option. Very useful on High HP Turbo and NOS cars when coming out of the blocks because this avoids power loss and damage to the motor if you run into the rev limiter.”
“You do not need a solid lifter kit to go to 9000 RPMS. The racecar I built is still Hydraulic and the power does not start to drop off until 8700 RPMS. My street car revs to 8500 RPMS I do have C3 cams and if you want a comp to go past 8000 RPMs I can get you one. There are some very simple mods to make your valve train stand up to 8500-9000 RPMS but I will not get into that right now.
S4s work better than C1 cams, that’s not an opinion that’s a fact. S4 cams will give you a much wider power band. For all who say that S4 cam do not work good with a T25 just look at Dougnosser's SE-R in the turbo section. Check out his dyno curve and come up with your own opinion. If you do not know how to tune a car and do not know how these parts can work together then leave the repeated comments alone. All you need to do is know how to match you parts together to make them work together.
As far as cams and valve float goes, the C cams have a lot of lift compared to duration. This causes the valves to open and close at a greater speed. C cams are more likely even with springs and retainers to float valves and toss rockers they will also cause valve float to occur quicker. Easier said the C cams will bounce on the seat. The S4 cam with about the same lift as a C3 but with more duration will hold up better than a C1.
If you are NA use S4, C2 or C3.
If you are turbo I swear by S4 cams. The best all around cam there is.”
“As far as which C cam I would recommend, that depends on what compression ratio you are running. 9.5-10 to 1 I would run C1s. If you have a 11 to1 compression motor that is stroked or bored out I would run C3 cams.”
“Well here we go, I have know idea who started this crap that you have to run JWT springs and retainers with JWT cams, that is silly. Cams are all made the same, they just differ in lift, duration and the actual open and closing points, that’s it. I have run JUN, TODA, FERREA, and also one with JWT cams with no problems. I have had 2 different sets of springs in the 9 sec racecar, JUN and FERREA, while running JWT cams and these springs ran up to 9000 RPMs with no problems. We have two motors for the racecar: one’s a backup motor and we built them just a little different when it cam to parts and they both worked great. This harmonic tuning bullshit that is supposed to be in the JWT springs is all shit. [It’s] just JWT and others trying to sell a product. I ** a great JWT fan but I do know when the shit is laid on too thick.”
From Rob Cadle (excerpts from posts on www.sr20deforum.com):
“I wouldn't run C1's on an NA car unless your prime objective was drivability with no loss of low-end power.
They cost a lot for the power they produce. I think that they are the ultimate smaller-turbo cam, though (a GREAT T-28 cam).
If you stay NA, get C2's. They lope, but they are livable, and they gain 25 whp over the stock cams.”
“Andreas is right: the bigger the turbo, the bigger the cams you can run (as a very rough generalization).
Overlap only hurts you if you are back-pressuring the engine. If the engine is in cross-over, or has very little negative delta P, you can run huge cams without mercy... the overlap will work even better on a turbo car than it will on an NA car as long as you are in crossover.
I think that C3's would be badass on a turbo car with a *very* large turbo. This is drag-race only kind of stuff. Take exhaust manifold pressure data if you want some guidance on the kind of cams you should use. If your exhaust manifold pressure (*BEFORE THE TURBO*) is less than or equal to intake manifold pressure throughout the engine's operating range (hard to achieve), then big cams are no problem.”
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