Offshoreonly.com - Search Results

Search: Posts Made By: LMAC

Showing results 1 to 25 of 29
Search took 0.00 seconds.

Forum: General Q & A

01-16-2007, 08:22 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Thanks for the input guys,
I purchased this:
http://www.innovatemotorsports.com/xcart/product.php?productid=16164&cat=262&page=1&xid=9665febf8866cdec3abf867f628aa2c8

Come on WARM weather!

Forum: General Q & A

01-12-2007, 03:36 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Thanks guys,
I'll do a little searching for the best deal.

Forum: General Q & A

01-12-2007, 12:18 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

I'm in between you guys, OKC.
Good luck to Brett getting there and back, we are getting hammered with freezing rain and ice. It's supposed to stop sometime Sunday.
Thanks for the offer Bob, I...

Forum: General Q & A

01-11-2007, 09:16 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Is that bung through a "wet" part of the exhaust? I can't really tell from the inside pic.
I just got to studying the picture of my manifold (above) and there may be enough room on the riser, just...

Forum: General Q & A

01-11-2007, 09:03 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Hey Tom,
That looks good, except I can't use a spacer on my manifolds, the risers clamp on.
On my risers, there is a gap between the inner and outer tubes anywhere from 1/8 to 1/4". The bung...

Forum: General Q & A

01-11-2007, 12:05 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

I can weld stainless. So the sensor would pass through the water jacket, maybe through a sleeve? And the bung is welded to the inner(exhaust pipe)?
Would you happen to have a picture?

Forum: General Q & A

01-11-2007, 12:27 AM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

The rotational mass theory makes sense. I'm probably on the edge of detonation with the octane, compression and a/f. Occasionally I will mix 10 percent 110 octane with 91, and according to my...

Forum: General Q & A

01-11-2007, 12:19 AM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Thanks Doug,
That is a good read.
We limited the pulls to 5400r's (my choice) and the motor was still making power, so it's possible I might have seen additional hp at a higher RPM.

Forum: General Q & A

01-09-2007, 07:10 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Float levels are good, idle transfer slots are "square".
I have thought about a single plane intake, I guess I am afraid of killing some torque on the bottom, and I don't want to raise the RPM.

Forum: General Q & A

01-09-2007, 01:32 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

162 water temp. Mallory Dist., sloted adjustable plate. I can set as little or as much advance as I want within it's parameters. This motor likes 20 degrees initial without stumbling when blipping...

Forum: General Q & A

01-09-2007, 12:27 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Re: Odd Dyno results

Air flow calculated from dyno. Timing 21 degrees initial, 33 total.
750 Marine demon mechanical sec. After each pull, engine would idle down to 875 RPM and a/f would stabilize in the low 14's....

Forum: General Q & A

01-08-2007, 10:04 PM

Replies: 30

Odd Dyno results

Views: 4,106

Posted By LMAC

Odd Dyno results

Put my motor back on the dyno today, mainly to check Air/fuel ratio and to test some carb spacers.
I built this Demon carburated 410 ci. SBC last year and dyno'd it last year with dyno headers:...

Forum: General Q & A

11-18-2006, 09:57 AM

Replies: 44

What should piston to wall clearance be

Views: 56,278

Posted By LMAC

Re: What should piston to wall clearance be

Tighter cylinder wall clearances in a marine application is a one way ticket to "lock up".
Different manufacturers require differnt clearances for their alloys and shape of piston. Depending on...

Forum: General Q & A

11-17-2006, 11:53 PM

Replies: 9

Has anyone ordered from 'Stem to Stern' lately?

Views: 1,336

Posted By LMAC

Re: Has anyone ordered from 'Stem to Stern' lately?

I placed an order on 9/19/06 I never recieved it nor was I able to get a hold of anyone at Stem to Stern. I disputed charges a few days ago, and received credit.
WTF, I've ordered quite a few parts...

Forum: General Q & A

11-01-2006, 09:01 AM

Replies: 9

Has anyone ordered from 'Stem to Stern' lately?

Views: 1,336

Posted By LMAC

Re: Has anyone ordered from 'Stem to Stern' lately?

Haven't recieved an order that was placed (and charged) well over a month ago. Can't get a return call, can't get a credit, can't get my parts. WTF!!!

Forum: General Q & A

10-31-2006, 10:14 PM

Replies: 9

Has anyone ordered from 'Stem to Stern' lately?

Views: 1,336

Posted By LMAC

Has anyone ordered from 'Stem to Stern' lately?

Anybody have any issues with their recent order?

Forum: General Q & A

10-31-2006, 07:20 PM

Replies: 48

Another Camshaft Question

Views: 22,694

Posted By LMAC

Re: Another Camshaft Question

Like this:
http://media.putfile.com/Exhaust-26-29

Forum: General Q & A

10-31-2006, 10:53 AM

Replies: 48

Another Camshaft Question

Views: 22,694

Posted By LMAC

Re: Another Camshaft Question

Standard risers. On the dyno, that motor made 421 H.P. @5400, 451 Tq. @4400.
I propped for that RPM, 23pitch Powertech, through a Volvo SX drive with 1.6 gears in a 20' Crownline.
That was the...

Forum: General Q & A

10-30-2006, 10:59 PM

Replies: 13

Highest compression on 93 octane

Views: 10,445

Posted By LMAC

Re: Highest compression on 93 octane

I'm in central Oklahoma, and I haven't seen 93 here for quite some time, 91 only. I'm running an AFR headed 410 ci. carbureted SBC, 10.4:1 cr. @ 33 degrees timing. 12.2 air fuel ratio on the dyno....

Forum: General Q & A

10-30-2006, 10:40 PM

Replies: 48

Another Camshaft Question

Views: 22,694

Posted By LMAC

Re: Another Camshaft Question

[QUOTE=azk4536]From what I understand, the XM270 doesn't suffer from reversion with a stock exhaust. Any idea if the XM276 does/would with a stock manifolds, risers, and thru hulls w/ S-bends? THe...

Forum: General Q & A

09-14-2006, 09:42 PM

Replies: 88

Procharged small block, boom.

Views: 14,920

Posted By LMAC

Re: Procharged small block, boom.

OEM style lifters are fine with a standard size base circle (approx 1.180") all the way down to 1.050 . Anything smaller will require the use of a longer lifter body. If you are going to replace your...

Forum: General Q & A

09-13-2006, 10:55 PM

Replies: 88

Procharged small block, boom.

Views: 14,920

Posted By LMAC

Re: Procharged small block, boom.

I ran that cam in my first 383, with 2.02/1.60 Torquer heads.
It built power to about 5000rpm. But like BOBL said, you don't need 13 degree split. Those E-tech 200 heads apparently have some very...

Forum: General Q & A

09-13-2006, 10:43 PM

Replies: 88

Procharged small block, boom.

Views: 14,920

Posted By LMAC

Re: Procharged small block, boom.

Yeah,
214/222 duration sounds a bit small to be able to turn 5600+rpm.

Forum: General Q & A

09-12-2006, 05:21 PM

Replies: 88

Procharged small block, boom.

Views: 14,920

Posted By LMAC

Re: Procharged small block, boom.

Those are impressive #'s !!! That thing was still building power, which makes me ask, why is the torque peak more than 2000rpm below the HP peak? With that much torque, maybe it really wouldn't...

Forum: General Q & A

07-07-2006, 11:47 PM

Replies: 88

Procharged small block, boom.

Views: 14,920

Posted By LMAC

Re: Procharged small block, boom.

GM. Fastburn heads are angled plugs, may be an issue with your exhaust. The Edelbrock E-tech heads are straight plug, but are 64cc just like the Fastburn heads. What JE pistons are you using?

Showing results 1 to 25 of 29