Thread: WTF are JWT S3/S4 HL cams????

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2011-03-05 07:15:31

#31

blusteelsr20 Online/offline status of blusteelsr20 is unknown

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HLs have been around for a while. Not too many peeps knew they existed but the specs for these cams have been out for years. I remember hearing about them as early as '02-03.

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2011-03-18 20:29:21

#32

Wolf_SER

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Originally Posted by blusteelsr20

HLs have been around for a while. Not too many peeps knew they existed but the specs for these cams have been out for years. I remember hearing about them as early as '02-03.

Yes, you are totally right. They have been around for a while

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1988 Nissan Sentra (B12)

Engine
Engine Code: SR20DET
Type: 1998cc in-line four, DOHC, aluminum block and head

Internal Modifications: Jim Wolf Technology S3 HLcamshafts

I still don't get the reason why would a C1 cam requires JWT springs compare to a S4 HL? Just look at the specs:

Jim Wolf cams
S3 cams-.442" LIFT / 260 DEG.DUR.
S3HL cams -.457" LIFT / 260 DEG.DUR.
S4 cams- .464" LIFT / 266 DEG.DUR.

These 3 are still below the C series cams

C1 cams- .476" LIFT / 264 DEG. DUR. Requires JWT SPRINGS

S4HL cams -.484" LIFT / 266 DEG. DUR.

C2 cams- .500" LIFT / 275DEG.DUR. Requires JWT SPRINGS

S5 cams- .503" LIFT / 281 DEG. DUR.

C3 cams- .526" LIFT / 285 DEG.DUR. Requires JWT SPRINGS

Does anyone know why C cams requires springs and why the HL don't?

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2011-03-18 20:57:05

#33

MR-4Door-SR20DET Online/offline status of MR-4Door-SR20DET is unknown

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^Good post Wolf. +Rep.

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Originally Posted by SR20GTi-R

NA is a thinking man's game, alot of people dont have the stomach to play NA.

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2011-03-18 21:13:54

#34

SR20-AUTECH Online/offline status of SR20-AUTECH is unknown

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You'll probably find the C1's have steeper ramps and hold peak lift for a longer duration.

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2011-03-18 23:34:02

#35

totaled200ser Online/offline status of totaled200ser is unknown

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Originally Posted by SR20-AUTECH

You'll probably find the C1's have steeper ramps and hold peak lift for a longer duration.

This

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2011-03-19 03:30:35

#36

Kyle

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Why do BC stage 2 cams not require springs and retainers but JWT C1 call for springs and retainers?

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2011-03-19 04:35:40

#37

Will

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Originally Posted by Viprdude

Why do BC stage 2 cams not require springs and retainers but JWT C1 call for springs and retainers?

post up the specs and i'll try to figure it out, i'm too lazy to find it myself

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Originally Posted by wnwright
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2011-03-19 06:05:30

#38

Kyle

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C1 cams- .476" LIFT / 264 DEG. DUR.

BC Stg. 2 cams- .475" LIFT / 264 DEG. DUR.

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2011-03-19 08:49:40

#39

happynole

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Originally Posted by SR20-AUTECH

You'll probably find the C1's have steeper ramps and hold peak lift for a longer duration.

This is indeed the correct answer. As for the bc stuff, I have no idea. If I had to make a guess it would have to do with the ramps as well

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