I’m working on
adding a new section for other assorted valve train components, mostly for
valve springs and retainers. Some
manufacturers have specs for their valve springs listed, some don’t, so it may
be a little spotty, but it should at least cover all the part numbers. I’ll also include other miscellaneous items
like cam gears, rocker arm stopper kits, etc.
Wanted: I’m still looking for the following specs, I
know some of you probably know them.
Stock 94 intake cam
Old JWT S2 cams
JWT S3 GTi-R cams
-Thanks, Calum
Note: Cam makers
are never the most honest people. Its
not that they lie straight out, its all in what exactly they are
measuring. The problem is even larger
here, with most of the cam makers being Japanese. For instance JWT’s advertised duration is from .003” open to
.003” closed. You can probably take it
to the bank that no Japanese cam maker’s advertised duration is measured
exactly like that. Also, a cam is more
than just duration and lift. I have
assembled these numbers to help provide a baseline, but the amount of faith you
put in them is up to you. Hopefully
what they can do (and what I went to all the trouble to get them for in the
first place) is provide a flavor of what the cam has been designed for.
I compiled this
list with FWD sr20s in mind (namely SE-Rs).
However, I tried to note when a manufacturer had either GTi-R or
roller-rocker grinds available. I did
not note if they had S14 or S15 grinds.
I compiled this
list for my own personal curiosity only.
I included only cams made from fresh billets; no re-grinds were
listed. There are still other cam
makers out there, if I run across their specs or if someone who knows is kind
enough to e-mail me (cjj6558@tntech.edu),
I’ll add them to the list. Also I’m
sure I’ve made many mistakes. If you
spot one, I’d be happy if you told me.
If you buy cams based on this list, don’t blame me when they suck!
-Calum
Cam Manufacturer |
Type |
Duration [°] |
Lift [mm] |
Part Number |
Street Price |
Notes |
Nissan (Stock) |
IN |
232 |
8.66 |
N/A |
Stock low-port (95-up) |
|
|
248 |
10.0 |
Stock high-port (91-93) |
||||
|
EX |
240 |
9.2 |
||||
|
IN |
248 |
10.0 |
Stock GTi-r |
|||
|
EX |
248 |
10.0 |
Stock GTi-r |
|||
|
IN |
232 |
10.0 |
Stock roller rocker |
|||
|
EX |
240 |
9.2 |
Stock roller rocker |
|||
JWT Damn, those are some huge ass lifts. |
IN |
260 |
11.3 |
|
$560
retail |
S3 – All
S-series cams work with stock valve train.
There is also a S3 grind for the GTi-R. |
|
EX |
260 |
11.3 |
||||
|
IN |
262 |
11.43 |
|
$560 retail |
S3 roller grind, for late-model roller-rocker heads only |
|
|
EX |
262 |
11.43 |
||||
|
IN |
266 |
11.8 |
|
$560 retail |
S4 |
|
|
EX |
266 |
11.8 |
||||
|
IN |
264 |
12.1 |
|
$560
retail |
C1 – All C-series cams require upgraded valve springs and
retainers |
|
|
EX |
264 |
12.1 |
||||
|
IN |
275 |
12.7 |
|
$560
retail |
C2 |
|
|
EX |
275 |
12.7 |
||||
|
IN |
285 |
13.36 |
|
$560
retail |
C3 |
|
|
EX |
285 |
13.36 |
||||
HKS Prices: www.horsepowerfreaks.com (search: hks+cams) cams, www.projectsilvia.com (under engine:mechanical) valve springs & lash killer kit. |
IN |
256 |
10.5 |
2202-RN085 |
$173.25 |
Step 1 – works with stock valve train |
|
264 |
10.5 |
2202-RN086 |
$173.25 |
|||
|
EX |
256 |
10.0 |
2202-RN088 |
$173.25 |
||
|
264 |
10.0 |
2202-RN089 |
$173.25 |
|||
|
IN |
256 |
11.5 |
2202-RN090 |
$216.56 |
Step 2 – needs valve springs (pn: 2201-RN011 / Price:
$272) |
|
|
264 |
12.0 |
2202-RN091 |
$165.38 |
|||
|
272 |
12.0 |
2202-RN092 |
$165.38 |
|||
|
EX |
264 |
11.5 |
2202-RN094 |
$244.13 |
||
|
272 |
11.5 |
2202-RN095 |
$173.25 |
|||
|
IN |
264 |
12.0 |
2202-RN096 |
$145.69 |
Step 3 |
|
|
272 |
12.0 |
2202-RN097 |
$216.56 |
|||
|
EX |
264 |
11.5 |
2202-RN099 |
$173.25 |
||
|
272 |
11.5 |
2202-RN100 |
$173.25 |
|||
|
IN |
264 |
11.0 |
2202-EX001 |
??? |
For GTi-R
motor only, I don’t think these need to be shimmed. YMMV. |
|
|
EX |
264 |
10.5 |
2202-EX002 |
|||
Toda All prices from www.todaracing.com (aka AKH Trading). |
IN |
248 |
11.0 |
SR20-IN002 |
$280 |
For use
with stock valve train |
|
256 |
10.5 |
SR20-IN001 |
$280 |
|||
|
264 |
10.5 |
SR20-IN011 |
$280 |
|||
|
272 |
10.5 |
SR20-IN021 |
$280 |
|||
|
EX |
248 |
11.0 |
SR20-EX002 |
$280 |
||
|
256 |
10.5 |
SR20-EX001 |
$280 |
|||
|
264 |
10.5 |
SR20-EX011 |
$280 |
|||
|
272 |
10.5 |
SR20-EX021 |
$280 |
|||
|
IN |
296 |
13.0 |
SR20-INR01 |
$750 |
Requires
Nismo N2 valve train (no information on this) |
|
|
304 |
13.0 |
SR20-INR11 |
$750 |
|||
|
EX |
288 |
12.8 |
SR20-EXR01 |
$750 |
||
|
296 |
12.8 |
SR20-EXR11 |
$750 |
|||
|
304 |
12.8 |
SR20-EXR21 |
$750 |
|||
Tomei Prices from splparts.com |
IN |
256 |
11.5 |
143043 |
$426
a pair |
Poncam – for use with stock valve train. Roller-rocker versions available in
260/11.2 only (pn: 143039 for a pair). |
|
260 |
11.2 |
143E260112 |
||||
|
EX |
256 |
11.5 |
143043 |
|||
|
260 |
11.2 |
143j260112 |
||||
|
IN |
260 |
12.0 |
1431260120 |
$426
a pair |
Procam – for use with upgraded valve springs ($206
standard, $375 GTi-R) |
|
|
270 |
12.5 |
1431270125 |
||||
|
EX |
260 |
12.0 |
1432260120 |
|||
|
270 |
12.5 |
1432270125 |
||||
|
IN |
260 |
|||||