how does this cam look?
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,714
Likes: 20
From: Ontario
how does this cam look?
on an '86E L98 with LT1 intake manifold, SVO injectors, true dual exhaust with no cats and magnaflow mufflers..?
http://www.compcams.com/Technical/Se...umber=12-246-3
Gross Valve Lift 0.487 0.49
Duration At 0.05 230 236
Lobe Separation 110
(will obviously be chip tuned)
http://www.compcams.com/Technical/Se...umber=12-246-3
Gross Valve Lift 0.487 0.49
Duration At 0.05 230 236
Lobe Separation 110
(will obviously be chip tuned)
Racer
Joined: Dec 2007
Posts: 312
Likes: 0
From: San Antonio Texas
Personally......If your valvetrain and heads can only accept .500" lift or so, then I'd guess it's OK
.Personally, though......If I were doing a cam swap with that much duration, I'd give it some heads that could take more lift and make the swap worthwhile!
Since you asked.............
KW
Last edited by Kevin Woods; Jan 22, 2008 at 11:55 PM.
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,714
Likes: 20
From: Ontario
hmm thanks, but since it is an '86E I'm on flat tappets, lift is hard to come by (or so I've been led to believe).
As for heads I'm a uni student so my budget ain't that big and decent head ringing up 1400$+ before install? I'll need to wait on that on.
if I had the money I'd be revving to 7000+ (replace most bottom end and get nicer heads) but with my current setup I'm hoping for a 6000
As for heads I'm a uni student so my budget ain't that big and decent head ringing up 1400$+ before install? I'll need to wait on that on.
if I had the money I'd be revving to 7000+ (replace most bottom end and get nicer heads) but with my current setup I'm hoping for a 6000
Pro
Joined: Mar 2005
Posts: 746
Likes: 0
From: Rochester PA
6000 RPM should be no problem. I have a CC flat tappet Extreme Energy cam in a motor from a '72 Nova SS that I totaled (sob), that had 224*/230* duration and .477"/.480" lift on a 110 LSA that would pull to 6000 all day. Made great power in a blueprinted 353 with puny World Products SR Torqer heads and 750 AFB style Edelbrock carb on an alum., dual plane manifold. Still have it and intend on finding out what it will do in the 1/4 in a '70 Nova my son is prepping for race only. Good luck w/your plans.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
That lift would be Ok with stock heads, youre only gonna get so much air through them anyway.
Dont know about tuning and the 110 LC, maybe a tuner could tell you more.
Dont know about tuning and the 110 LC, maybe a tuner could tell you more.
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Race Director
Joined: Jan 2008
Posts: 16,028
Likes: 170
From: oregon
I have a comp xr276 hyd roller on a 114lsa that is just a screaming cam, idle is great, so is the power and it's passable. You would need to upgrade springs but i would suggest a heads and cam package if i were you. Buy some AFR 180's and turn the cam up.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
on an '86E L98 with LT1 intake manifold, SVO injectors, true dual exhaust with no cats and magnaflow mufflers..?
http://www.compcams.com/Technical/Se...umber=12-246-3
Gross Valve Lift 0.487 0.49
Duration At 0.05 230 236
Lobe Separation 110
(will obviously be chip tuned)
http://www.compcams.com/Technical/Se...umber=12-246-3
Gross Valve Lift 0.487 0.49
Duration At 0.05 230 236
Lobe Separation 110
(will obviously be chip tuned)
-- Joe
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,714
Likes: 20
From: Ontario
some mixed responses, The lobe separation worries me but from what I read lower LSA creates a peakier torque curve that comes earlier. If it comes too early for me I guess I can degree the cam and retard it a bit.
I wish I had the money for heads
I'll see what I can do in the summer time in that case, but until then I just need a cam for the stock heads, thanks.
as for stock cam here is one from '87 (they have roller cams so their lift is probably set higher than '86)
202/207
.404/.415
114.5
Just ordered the comp cams one so we'll see how well it does in real life.
I wish I had the money for heads
I'll see what I can do in the summer time in that case, but until then I just need a cam for the stock heads, thanks.as for stock cam here is one from '87 (they have roller cams so their lift is probably set higher than '86)
202/207
.404/.415
114.5
Just ordered the comp cams one so we'll see how well it does in real life.
Melting Slicks
Joined: Aug 2003
Posts: 3,399
Likes: 394
From: Lakeville MI
With only 60 degrees of overlap, its only slightly larger (overlap-wise) than the popular hydraulic rollers cc 305 (55 degrees) and cc 503 (54 degrees).
It is quite a bit smaller than the cc 306 (74 degrees)
I think it is milder than the 0.050" duration numbers suggest.
It appears to be a reasonable choice and a mild one at that.
It is quite a bit smaller than the cc 306 (74 degrees)
I think it is milder than the 0.050" duration numbers suggest.
It appears to be a reasonable choice and a mild one at that.
Last edited by tequilaboy; Jan 23, 2008 at 01:05 PM.
Team Owner
Joined: Sep 2001
Posts: 62,154
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
the stock 86 flat tappet specs are on my site, but its very close to the 87s roller specs
I'd go for more lift with the cam choice, but I understand budget issues. Later on after you pick some better heads, you might want to consider tougher springs and go to 1.7RR.
I'd go for more lift with the cam choice, but I understand budget issues. Later on after you pick some better heads, you might want to consider tougher springs and go to 1.7RR.
Melting Slicks
Joined: Jul 2004
Posts: 2,695
Likes: 0
From: Chicago Illinois
You will absolutly love a cam on a 110lsa. You are right, it gets you in the power curve faster. Talk to a tuner first to find a guy whos confident in tunning it. I have a cam 215/224 on a 110lsa. Lift is .333 Multiply that by 1.6 for the roller rockers and you get .532. Small cam but pulls hard to 6300 rpms. Go to the track and youll see all the high powered muscle cars are using even tighter lsa. Not to mention the note you get from a 110 cam. Listen to mine in signature. Mine idles at 800 and there is no surging at all.
Melting Slicks
Joined: Jul 2004
Posts: 2,695
Likes: 0
From: Chicago Illinois
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Anyway. to the OP:
I think that, rather than taking advice from folks who have not used that exact cam, folks should talk to people who have. (which isn't me, but I almost bought one a few years ago). Search on TGO. Lot of guys have used that cam. I know one guy who liked it on his 400. I know another guy (traxion) who did not like it on his 350. The rest you'll have to pick apart.
It does seem to have some pretty quick ramps for a flat tappet cam.
With a only a 6 degree spread and junk heads, I'm not sure it would be the cam I'd chose for your setup.
-- Joe