Messages

31

Matt Shaff's Engine Shop / Re: SBC roller cam ID help?

« on: August 06, 2018, 07:22:27 PM »

Not sure what that is.
You might try to put it in the engine and record all the movement with a degree wheel and dial indicator.
Or you can send it to someone with a cam doctor.

32

Matt Shaff's Engine Shop / Re: mech.fi

« on: August 06, 2018, 07:20:02 PM »

speedbump:
 I agree with jeff/21. It sounds like that cylinder is lean
Grab a cheap hand held temp gun and see what the headers have for surface temperature.

33

Matt Shaff's Engine Shop / Re: 6AL Enough?

« on: June 02, 2018, 04:29:25 AM »

opa1:
I believe it will have enough power for alcohol.

34

Spud Miller's Cave / Re: pump test bench ? spud

« on: May 06, 2018, 05:01:19 PM »

Spud:
 What liquid do you use for flow testing?

Thanks: Matt

35

Matt Shaff's Engine Shop / Re: purifying oil

« on: April 29, 2018, 05:12:05 PM »

We have used a big pot on a hot plate.
No open flame.

36

Your Builds / Photo Gallery / Re: Ed Mabry 71 Jr. Fuel

« on: April 01, 2018, 04:57:16 PM »

Great looking FED.
I love the narrow front end.
Good luck!!

Matt

37

Matt Shaff's Engine Shop / Re: Basic 355 combo

« on: March 29, 2018, 06:55:08 PM »

I agree with Roger, 108* LSA if I was to do it again.
You will also get tired of gas real quick.
Alcohol is the way to fly.

Matt

38

Matt Shaff's Engine Shop / Re: Basic 355 combo

« on: March 29, 2018, 08:06:01 AM »

OPA1:
 This is a copy of a posting I answered from just a few weeks ago:

Last year [2016 and 2017] we ran a 355 S.B.Chevy in a 175" WB Front engine dragster.
33" tall tires, 4.11 gear and Powerglide NO Trans Break. Leaving off idle.
Engine was very basic. 10 to 1 compression and un-ported 461 castings.
Enderle stacks on alcohol.
Camshaft was a Engle Flat Tappet Solid. 247*/252* on a 110* lobe separation.
Car ran 5.64 @ 122 MPH in the 1/8
It was assembled as a stepping stone from a Jr Dragster for our youngest son.
We had a ball racing it and won several local races.

If you use the cylinder heads that you own, your lower compression ratio will let you use cheaper gas.
Brings the cost of racing down and the fun up.

Matt Shaff
Pro-Formance Specialties
585-288-1499

39

Front Engine Dragsters / Re: First passes with a clutch

« on: March 25, 2018, 07:35:18 PM »

Hello Paul:
 Now that you have a couple of years with a clutch, how about an update?
Also let us know about tire and rim sizes.
Thanks

40

Matt Shaff's Engine Shop / Re: cam specs

« on: March 13, 2018, 07:02:11 PM »

Fuel749:
Dave is not far off on his specs.
More information about your parts will help pinpoint closer what to use.
How much gear in the rear and what size tire?
Compression, heads and cubic inch of the engine?
Powerglide and transmission brake?
Are you looking for roller or flat tappet camshaft?
Last year we ran a 355 S.B.Chevy in a 175" WB Front engine dragster.
33" tall tires, 4.11 gear and Powerglide NO Trans Break. Leaving off idle.
Engine was very basic. 10 to 1 compression and un-ported 461 castings.
Enderle stacks on alcohol.
Camshaft was a Engle Flat Tappet Solid. 247*/252* on a 110* lobe separation.
Car ran 5.64 @ 122 MPH in the 1/8
It was assembled as a stepping stone from a Jr Dragster for our youngest son.
We had a ball racing it and won several local races.

Matt Shaff
Pro-Formance Specialties
585-288-1499

41

Front Engine Dragsters / Re: wheelie bar

« on: March 05, 2018, 05:53:15 PM »

That's lots of rear tire.
Your wheelie bar setting is very important.
Start low and raise it up a little at a time.
Been there, done that.

Matt

42

Matt Shaff's Engine Shop / Re: LSM Engineering

« on: February 23, 2018, 04:02:26 AM »

I have no knowledge about that.
Good luck

43

Your Builds / Photo Gallery / Re: Debut "Elijha's Chariot" FED

« on: February 19, 2018, 12:07:22 PM »

Looks Good!!
The front wing helps.

44

Matt Shaff's Engine Shop / Re: Installing a vacum pump on tunnel ram injected sml blk chev using a enderlee 80

« on: February 08, 2018, 06:58:26 PM »

Tough call.
I'm the guy that sits on a milk crate holding parts in place with C-clamps and tape.
After a while my butt looks like an EGGO waffle.
Look at as many pictures of others cars as possible.
Sorry, not much help on this one.

Matt

45

Matt Shaff's Engine Shop / Re: 2 bolt block

« on: January 25, 2018, 03:49:07 PM »

Hotrod 316:
 Two bolt blocks are a lot stronger than most give credit.
We build several Big Block Ford [460 style] engines every year.
Most of them are two bolt main and 800 HP seams to be the line in the sand.
The B.B.Chevy and Ford both have 1/2" main bolts or studs and are very strong.
As with any engine the problems are caused by detonation.
If the engine has pre-ignition and or detonation it doesn't matter how many bolts are holding the main caps down.
We see main cap walk and material transfer with too much timing and engine load.
And it happens no matter if its a Dart block with billet caps or stock.
As far as RPM goes that has no effect on 2 or 4 bolt construction.
The key to high RPM use is light weight parts.
Keep the timing conservative and the mixture a little rich. We are all bracket racing. Make it run forever.
That's my opinion.

Matt Shaff