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two89w
Gearhead

Posts: 299
From: sydney australia
Registered: Sep 2002

posted 11-06-2004 03:36 AM     Click Here to See the Profile for two89w   Click Here to Email two89w     Edit/Delete Message   Reply w/Quote
Will this cam have a lopey idle, very lopey very very lopey?
Solid flat tappet
adv 275/285
[email protected],238/248
lift at cam 320/334
lobe sep108
intake centre line 106
intake open 31 close 64
exh open 34 close 71

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Toronado3800
Gearhead

Posts: 851
From: St. Louis, MO
Registered: Jul 2001

posted 11-06-2004 03:43 AM     Click Here to See the Profile for Toronado3800     Edit/Delete Message   Reply w/Quote
Lopey to me may not be the same as it is to you. I've only owned comp cam's 110 sep. cams. I'd guess quite lopey for a street car and o.k., but not great for vacuum assist brakes.

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Mpcoluv
Gearhead

Posts: 1278
From: Charlotte NC usa
Registered: Apr 2001

posted 11-06-2004 08:36 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
Don't you have webers?
The cam will not be as lopey with a IR induction setup.

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two89w
Gearhead

Posts: 299
From: sydney australia
Registered: Sep 2002

posted 11-06-2004 04:57 PM     Click Here to See the Profile for two89w   Click Here to Email two89w     Edit/Delete Message   Reply w/Quote
No I sold the webers.I am running a 650dp.

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Mpcoluv
Gearhead

Posts: 1278
From: Charlotte NC usa
Registered: Apr 2001

posted 11-07-2004 09:15 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
OK heres my guess....Pretty Lopey with about 10" of vacuum or less. MAybe 8".
You have aftermarket heads right?
Why all the extra exhuast duration?
On a street car with full exhaust, I doubt you will see any significant gains over a straight 238 @ .050 cam, except for worse idle characteristics.
Overlap is what makes the engine idle rough.
Everything is a trade. A 238 @ .050 with a 110 LDA will idle better, but make les midrange than a identical 108 LDA cam

Try this link for overlap info
http://members.uia.net/pkelley2/Overlap.html

[This message has been edited by Mpcoluv (edited 11-07-2004).]

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