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stussyrich
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« on: July 15, 2012, 22:27:24 pm » |
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Ok guys whats your opinions on the best cam for an aspirated motor.
some specs.
2387
scat case with centre thrust.
86 scat flange crank
5.5 rods
wiseco teflon coated pistons with valve pockets.
tool steel lifters
ultra wedgeport heads 47x38 titanium valves Ls1 springs 33cc chambers.
berg 1.4 rockers
51.5 italians
berg 1" 7/8 stepped header
around 13.5 compression..
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Lil Stink Hound.. 2332 IDA. 11.78 @ 112mph.
Turbo Notch.. 2332 Turbo 10.2 @ 137mph.
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Erlend / bug66
Global Moderator
Hero Member
Posts: 958
SCC Event
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« Reply #1 on: July 15, 2012, 22:34:48 pm » |
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Ask JPM!
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018
The '59:
Not yet..
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dannyboy
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« Reply #2 on: July 15, 2012, 22:39:49 pm » |
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/\/\/\/\/\/\ thats where my next cam will come from only heard good things  |
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richie
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« Reply #3 on: July 16, 2012, 08:48:45 am » |
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FK48 on 108 lobe centers or FK89 for less maintenance on valve train
cheers richie
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Cars are supposed to be driven, not just talked about!!! Good parts might be expensive but good advice is priceless  |
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jamiep_jamiep
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« Reply #4 on: July 16, 2012, 15:55:29 pm » |
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I'd stick a 110 in there rich  hahaha how else am I going to get in front of you?!  |
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Fast Bug
Newbie
Posts: 22
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« Reply #5 on: July 16, 2012, 19:13:23 pm » |
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JPM Raptor and alu pushrods |
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« Last Edit: July 16, 2012, 19:17:42 pm by Fast Bug »
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JS
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« Reply #6 on: July 17, 2012, 22:46:41 pm » |
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Ask JPM!
Nope, he would get the correct answer - not an opinion. |
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Signature.
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Erlend / bug66
Global Moderator
Hero Member
Posts: 958
SCC Event
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« Reply #7 on: July 17, 2012, 22:54:37 pm » |
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My opinion is to ask JPM |
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018
The '59:
Not yet..
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stussyrich
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« Reply #8 on: July 17, 2012, 23:48:19 pm » |
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this was a suggestion.. custom grind .613 lift 320 duration on a 105 lobe center..
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Lil Stink Hound.. 2332 IDA. 11.78 @ 112mph.
Turbo Notch.. 2332 Turbo 10.2 @ 137mph.
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Zach Gomulka
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« Reply #9 on: July 18, 2012, 02:57:07 am » |
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I was under the impression that the 86c was the next best thing behind the Raptor cams?
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Born in the '80s, stuck in the '70s.
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SuperTrigger
Newbie
Posts: 41
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« Reply #10 on: July 18, 2012, 10:42:08 am » |
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FK46. Almost same engine that you have exept lower compression (11.x:1) and 44 intake valves it made 195whp@6700rpm and 230NM (234hp/266Nm at engine). -Puide- |
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Jon
Administrator
Hero Member
Posts: 3214
12,3@174km/t at Gardermoen 2008
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« Reply #11 on: July 18, 2012, 13:31:32 pm » |
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I was under the impression that the 86c was the next best thing behind the Raptor cams?
Whats "best"? ...more power or long life/silent valve train? Many cams are designed the modern way, but usually the power is lacking... JPM's cams have both... |
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Grumpy old men have signatures like this.
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stussyrich
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« Reply #12 on: July 18, 2012, 13:56:53 pm » |
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should have said it's for drag only so not bothered about long life or quiet valve train.
The lifter bores have bronze bushings and i'll be using tool steel lifters..
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Lil Stink Hound.. 2332 IDA. 11.78 @ 112mph.
Turbo Notch.. 2332 Turbo 10.2 @ 137mph.
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TexasTom
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« Reply #13 on: July 18, 2012, 14:50:52 pm » |
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JPM Raptor and alu pushrods Don't forget SINGLE springs! TxT |
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Work, work, WORK!
Modesty accepted here ...
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Torben Alstrup
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« Reply #14 on: July 18, 2012, 18:20:22 pm » |
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I was under the impression that the 86c was the next best thing behind the Raptor cams?
The 86C is a killer cam. But in an engine like that with 13+ - 1 CR better choices can be made. You dont build an engine like that an want to drive it on the street much... IŽd also say FK89 or the new 2290 (I think) from CB. if you are ready to step up to a Ratptor, that would most likely give you most HP, and definitely the lesser need for valve spring tension. T |
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Zach Gomulka
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« Reply #15 on: July 19, 2012, 02:02:53 am » |
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Thanks for the clarification, Torben. I've got a 2332 longblock that I hope to stab that cam in someday...
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Born in the '80s, stuck in the '70s.
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Shag55
Full Member
Posts: 220
Shag Leone, SL-1racing
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« Reply #16 on: July 19, 2012, 04:12:16 am » |
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Re: best aspirated cam
I have a xr328 on a 106 and TP tool steel lifters. It was made for a Super Stock motor. It was on a 106 to help get out of the hole with such a big cam on a smaller motor. 240-250hp.
With a big motor say 280 really no need for a tight lobe center.
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Lids
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« Reply #17 on: August 07, 2012, 22:39:00 pm » |
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I had an 86C then went to the dark side and now have JPM
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Frallan
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« Reply #18 on: August 08, 2012, 01:40:35 am » |
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I had an 86C then went to the dark side and now have JPM
Me too. ...and single springs from Crower. |
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bedjo78
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« Reply #19 on: August 08, 2012, 03:14:34 am » |
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in tropical weather fk47 with 1:5 rocker worked well.
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BeetleBug
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« Reply #20 on: August 08, 2012, 07:37:09 am » |
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in tropical weather fk47 with 1:5 rocker worked well.
Did you ask your engine case? |
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10.41 - 100ci - 1641ccm - 400hp
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Erlend / bug66
Global Moderator
Hero Member
Posts: 958
SCC Event
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« Reply #21 on: August 08, 2012, 07:45:30 am » |
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in tropical weather fk47 with 1:5 rocker worked well.
Did you ask your engine case?  I've seen a engine block with a split-cam with FK4x on the lobes.. Lifter bores did not look to happy |
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018
The '59:
Not yet..
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Jon
Administrator
Hero Member
Posts: 3214
12,3@174km/t at Gardermoen 2008
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« Reply #22 on: August 08, 2012, 08:00:51 am » |
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I had an 86C then went to the dark side and now have JPM
I think you mean you stepped out of the dark ages. |
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Grumpy old men have signatures like this.
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bedjo78
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« Reply #23 on: August 08, 2012, 08:29:51 am » |
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in tropical weather fk47 with 1:5 rocker worked well.
Did you ask your engine case? I've seen a engine block with a split-cam with FK4x on the lobes.. Lifter bores did not look to happy the lifter bores sleeved . the power come early and pull strong up 7500 rpm |
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BeetleBug
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« Reply #24 on: August 08, 2012, 10:34:15 am » |
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the lifter bores sleeved . the power come early and pull strong up 7500 rpm
I know, I used one myselves in a alu case but luckily I got it out before it did any damages. |
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10.41 - 100ci - 1641ccm - 400hp
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