Shouldn't I be seeing better numbers?

95Vert

New Member

Aug 19, 2004

1,785

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North Mexico (deep south Texas)

Nov 7, 2006

#21

• Nov 7, 2006

• #21

So i guess I was write, sorry. I didn't see this thread first.

 

final5-0

Mustang Master

Apr 6, 2003

6,817

12

79

DFW Texas

Nov 7, 2006

#22

• Nov 7, 2006

• #22

I went over and looked at the pull in the other thread

It peaked at 5250 and dropped from there

Something is going on that is not letting that bad boy stroker breathe on the big end

Sounding more and more like the bumpstick

You need bigger bumps

Maybe retard it a bit

Grady

 

smitty_64

New Member

May 27, 2006

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Nov 8, 2006

#23

• Nov 8, 2006

• #23

Alright guys,

Just talked to Jason. He said it was a custom grind cam, and it was 224/232 and .555/.575. He said it was a lot like the B303. That may help.

Greg

 

Black95GTS

Active Member

Jan 8, 2004

1,644

3

38

Marlborough, MA

Nov 8, 2006

#24

• Nov 8, 2006

• #24

smitty_64 said:

Alright guys,

Just talked to Jason. He said it was a custom grind cam, and it was 224/232 and .555/.575. He said it was a lot like the B303. That may help.

Greg

Click to expand...

That guy doesn't know crap. A B303 is, as per scummit racing, 284 int /284 exh and .480 / .480 lift with the stock rockers. Old school symmetrical grind from the mid 80s.

http://store.summitracing.com/partdetail.asp?part=FMS-M-6250-B303&N=700+115&autoview=sku

I don't see how a split duration custom grind with a TON less duration then 284 and a TON more lift then .480 could possibly be like a B cam.

Aside from that, have you checked the degreeing on your camshaft? It could be that your way too advanced and you need to retard it some.

Adam

 

diablostang

New Member

Sep 21, 2004

425

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Raleigh, NC

Nov 8, 2006

#25

• Nov 8, 2006

• #25

Those are weak numbers, and a B cam (or similar) is farrrrr to weak for your combo. You should be hitting atleast 6,000 RPMS as well, depending on cam/intake setup.

 

WhiteDevil

New Member

Feb 4, 2003

2,717

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San Diego

Nov 8, 2006

#26

• Nov 8, 2006

• #26

diablostang said:

Those are weak numbers, and a B cam (or similar) is farrrrr to weak for your combo. You should be hitting atleast 6,000 RPMS as well, depending on cam/intake setup.

Click to expand...

Yeah i have done a few WOT datalogs and i see my peak air flow around 5,800rpm and it doenst drop off hardly at all all the way to 6,000rpm.

 

smitty_64

New Member

May 27, 2006

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Nov 9, 2006

#27

• Nov 9, 2006

• #27

Actually Black95GTS, its pretty damned close to this one...

http://store.summitracing.com/egnse...4294838575+4294801548+115+308156&autoview=sku

That doesn't look too bad to the uneducated eye, and it provides 284/290 advertised duration. The numbers above were at .050 lift...correct me if I am wrong.