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Thread: think tank - vqman's N/A Big Cam SR23DE Build 92x86

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Posts: 91-100 of 193
2011-01-18 22:43:08
#91
Originally Posted by SR20GTi-R
The low lobe on a 184c is not that small.

There are threads discussing all of this.


S3, S4, S5 cam comparison - SR20 Forum

yeah I usually go to this thread for cam info, and I tried digging up info on the Kelfords, but I couldn't read their data in the format they had it.

Originally Posted by Keo
high low
Inlet Exhaust Inlet Exhaust Inlet Exhaust Inlet Exhaust
314 313 266 258 12.50mm 11.50mm 104 106
thanks

Here is one of my posts that thread I linked above:
Originally Posted by vqman

Originally Posted by SLEEPIN-SR-2@
Jim Wolf cams
S3 cams-.442" LIFT / 260 DEG.DUR.
S4 cams- .464" LIFT / 266 DEG.DUR.
S5 cams- .503" LIFT / 281 DEG. DUR

C1 cams- .476" LIFT / 264 DEG. DUR.
C2 cams- .500" LIFT / 275DEG.DUR.
C3 cams- .526" LIFT / 285 DEG.DUR.

BrianCrower cams
BC stg 2- .475 LIFT / 264 DEG.DUR.
BC stg 3- .495 LIFT / 272 DEG.DUR.

Nissan (stock)

Stock low port (95-up)-
IN- .341 LIFT / 232 DEG.DUR. - EXH- .362 LIFT / 240 DEG.DUR

Stock high port (91-93)
IN- .394 LIFT / 248 DEG.DUR - EXH- .362 LIFT / 240 DEG.DUR

Stock GTI-R cams-
.394 LIFT / 248 DEG.DUR

Roller Rocker SR20-
IN- .394 LIFT / 232 DEG.DUR - EXH- .362 LIFT / 240 DEG.DUR

SR20VE-
Low lobe IN-.331 LIFT /220 DEG.DUR - Low lobe EXH-.260 LIFT/244DEG.DUR
High lobe IN-.421 LIFT /264 DEG.DUR - High lobe EXH-.407 LIFT/268DEG.DUR

SR16VE N1-
Low lobe IN-.331 LIFT/ 220 DEG.DUR - Low lobe EXH-.313 LIFT/ 244DEG.DUR
High lobe IN-.472 LIFT/288 DEG.DUR - High lobe EXH-.469 LIFT/ 288DEG.DUR



http://www.part-box.com/kelford-314-camshafts-for-sr16ve-or-sr20ve-p-20164.html

http://www.kelfordcams.com/applications.aspx

someone help a brother out

Kelford 184-C cams for SR20VE
Low lobe IN- ???? LIFT/ ???? DEG. DUR - Low lobe EXH - ???? LIFT/ ???? DEG.DUR
High Lobe IN -12.5mm LIFT/ 314 DEG.DUR - High lobe EXH - 11.5mm LIFT/ 313 DEG.DUR



now here's your data..

Duration @ 0.1 mm Valve Lift

high
Inlet Exhaust
314 313

low
Inlet Exhaust
266 258

Valve Lift @ 1.55 Rocker Ratio
Inlet Exhaus
12.50mm 11.50mm

Centerline @ Full Lift
Inlet Exhaust
104 106

let me try and format it like the other cams so I can compare easier..
2011-01-18 22:43:15
#92
Originally Posted by Keo
wait, if Robchaos made 181 on a 86x86 DE with , the 92x92 DE should yeld 248whp correct(per Andreas calculation if 15hp per .1 liter)?


No its not that easy.

Changing stroke changes a lot. Easiest way for me to sum it up.
2011-01-18 22:51:34
#93
all i did was googled "kelford 184c cams"

first link was this
Kelford Cams Applications

second with the video of it at idle. makes my S4 sounds like stock!

http://www.youtube.com/watch?v=48WSyGA380M
2011-01-18 22:59:41
#94
Kelford 184-C cams for SR20VE
Low lobe IN- ???? LIFT/ ???? DEG. DUR - Low lobe EXH - ???? LIFT/ ????DEG.DUR
High Lobe IN - .492" LIFT/ 314 DEG.DUR @ 0.1 mm Vlve Lft - High lobe EXH - .452" LIFT/ 313 DEG.DUR
High Lobe IN - .492" LIFT/ 266 DEG.DUR @ 1.0 mm Vlve Lft - High lobe EXH - .452" LIFT/ 258 DEG.DUR

i don't see where your stats show the lift of the low lobe..
2011-01-18 23:02:00
#95
Originally Posted by Keo
all i did was googled "kelford 184c cams"

first link was this
Kelford Cams Applications


yeah as you can see I found that back in September... see two posts above.. from the link on sr20forum... I couldn't find the lift for the low lobe..
2011-01-18 23:02:03
#96
jamie does the kelfords lope like that in the 2.4 motors "?

stratton.
2011-01-18 23:02:40
#97
sorry, i just realize it says "Duration @ 1.0 mm Valve Lift" and not low lobe.
2011-01-18 23:06:37
#98
Like I've said before... yea shoul atleast build this w a ve block so you can have the oil squirters.. then do whatever you want with the head which I still don't understand... u really want the lope 184cs do have some lope..

But either way, id build it on a ve bottom throw a de head on. And then when you see the light, you can do the head swap and be all good.
2011-01-18 23:44:39
#99
Originally Posted by cory

But either way, id build it on a ve bottom throw a de head on. And then when you see the light, you can do the head swap and be all good.


+1 good point
2011-01-19 00:35:59
#100
kelfords site doesn't tell me their low lobe "lift" data... but they do provide duration, and its between an S3 & S4 cam in duration... (depending on intake or exhaust cam)

the Kelford big lobe's duration far exceeds even the JWT C3 cams...
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