Is there a better cam?
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Is there a better cam?
I am using a 246/252@ 050 cam ground on a 106lsa. .577 intake lift with 1.6 rocker, .544 ex lift with 1.5. 355 ci, 6.250 rods, 49cc dart heads, 3cc domes. Runs good, won a ton of races with it. Time for a freshen. I would like to make more top end power, but dont want to kill low end. I run it 6800-7200 rpms. Any suggestions?
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Re: Is there a better cam?
Racer18 wrote: ↑Wed Feb 14, 2018 5:07 pm I am using a 246/252@ 050 cam ground on a 106lsa. .577 intake lift with 1.6 rocker, .544 ex lift with 1.5. 355 ci, 6.250 rods, 49cc dart heads, 3cc domes. Runs good, won a ton of races with it. Time for a freshen. I would like to make more top end power, but dont want to kill low end. I run it 6800-7200 rpms. Any suggestions?
Define low end. At that RPM you should have a 5500 converter so anything below that is moot (for lack of a better word).
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Re: Is there a better cam?
You should probably define what kind of racing you're doing first.Racer18 wrote: ↑Wed Feb 14, 2018 5:07 pm I am using a 246/252@ 050 cam ground on a 106lsa. .577 intake lift with 1.6 rocker, .544 ex lift with 1.5. 355 ci, 6.250 rods, 49cc dart heads, 3cc domes. Runs good, won a ton of races with it. Time for a freshen. I would like to make more top end power, but dont want to kill low end. I run it 6800-7200 rpms. Any suggestions?
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Re: Is there a better cam?
From his cylinder head thread, I assume it's a 2bl limited short track deal?
If that is the case, to answer both of the threads, it's all gonna be in the valve job and valve train! Lol
Angle mill to the max, a modern valve job and similar events but about .150 or so more lift.
Then there's the short block.................
If that is the case, to answer both of the threads, it's all gonna be in the valve job and valve train! Lol
Angle mill to the max, a modern valve job and similar events but about .150 or so more lift.
Then there's the short block.................
Re: Is there a better cam?
Before you take it apart, first tighten up the valve lash to about .014" set cold and try a few laps.
Do you like that effect. ?? If so change to this cam Isky 201547 .look it up.
Be sure to degree it in at a 102 intake C/L. It will have more top end without getting too carried away. It is 10deg bigger @.050" and a bit more lift. same 106LSA.
Do you like that effect. ?? If so change to this cam Isky 201547 .look it up.
Be sure to degree it in at a 102 intake C/L. It will have more top end without getting too carried away. It is 10deg bigger @.050" and a bit more lift. same 106LSA.
Re: Is there a better cam?
It's already apart, actually it was pretty tired. 8 seasons on it.NO JOKE! I built it, raced it myself for 3 years, sold out, its been through 3 other owners, current owner called to ask if I would freshen it/ update it. Oil pan has never been off. There are alot of 400+ cubic inch engines in the class now. I just want to see if we can compete with this one!
Re: Is there a better cam?
What engine are you using?
I ask because of a 6.25" long rod in a 355 is all.
I assume it isn't a stock block Gen. I SBC, right?
Or can you put a 6.25" long rod in a 3.25" stroked 355" SBC? Don't think so, but don't know either...
pdq67
I ask because of a 6.25" long rod in a 355 is all.
I assume it isn't a stock block Gen. I SBC, right?
Or can you put a 6.25" long rod in a 3.25" stroked 355" SBC? Don't think so, but don't know either...
pdq67
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Re: Is there a better cam?
3.48" stroke
6.25" rod
1.21" Compression height piston
9.2" deck height block.
Stan
Stan Weiss/World Wide Enterprises
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Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization Software
http://www.magneticlynx.com/DV
Re: Is there a better cam?
It all depends on the RPM you're coming off the corner.
If it's below 4,000rpm, we normally go with a 248/252 on a 105.
If it's 4,500rpm or above, we go with a 253/256 on a 106.
Mike Jones
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Jones Cam Designs
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jonescams@bellsouth.net
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Re: Is there a better cam?
Give Mike Jones a call and give him all your info, you won't be disappointed.
Josh K.
Re: Is there a better cam?
9.2"? Surely this is a stock 9.025" deck block, hence a 1.035" CH for zero deck?Stan Weiss wrote: ↑Thu Feb 15, 2018 10:30 am3.48" stroke
6.25" rod
1.21" Compression height piston
9.2" deck height block.
Stan
Felix, qui potuit rerum cognscere causas.
Happy is he who can discover the cause of things.
Happy is he who can discover the cause of things.
Re: Is there a better cam?
It is a 1" ch, zero deck@ 9.00. 1550 bob weight with steel rods. Outran a lot of 412-415 ci engines, but they have stepped up their game since we last ran this combo.
Re: Is there a better cam?
My kids b mod motor has amazing power off the corners... Call Mike.
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