Messages

1

Wanted to buy / Re: Nozzle jets

« on: December 12, 2022, 10:01:00 AM »

Well looks like I hit the jackpot got 100 pieces from a former racer.

2

Wanted to buy / Re: Nozzle jets

« on: December 08, 2022, 04:40:14 PM »

Have you looked on Racing Junk? Are you just running hat nozzles, or are you running hat and port nozzles?

Yes I have trying not to buy new, I missed out on a couple good package deals of 100s. Yea I run both hat and port.

3

Wanted to buy / Re: Nozzle jets

« on: December 08, 2022, 07:34:30 AM »

What do you need?

I could us a couple of each.

4

Wanted to buy / Re: Nozzle jets

« on: December 08, 2022, 07:31:47 AM »

I need anything 60 thru 65  and 70 thru 75. and 81 thru 90

5

Wanted to buy / Nozzle jets

« on: December 08, 2022, 05:59:45 AM »

Anyone have any nozzle jets they want to sell?

6

Matt Shaff's Engine Shop / Re: Baseline starting tips

« on: May 05, 2022, 02:50:26 PM »

Yes alcohol mechanical injection, I actually set it up at 24 but when I stalled it up on the break it wanted bang and backfire so I raised it to 28 and that stopped the back fire on the break, so 28 will be my starting point, for now.

7

Matt Shaff's Engine Shop / Baseline starting tips

« on: May 04, 2022, 10:12:58 AM »

So my question is what starting point with timing do you start with on a SBC blown with mechanical injection?
2nd question what's a EGT target I'm shooting for on a SBC application?

8

Spud Miller's Cave / Re: Idle adjustment

« on: April 28, 2022, 07:53:02 AM »

That's where I have it set at 29deg. locked and the idle is at 1800, so as long as the opening is with in the .004 to .007 at 1500 rpm I should be good?

9

Spud Miller's Cave / Idle adjustment

« on: April 28, 2022, 07:14:31 AM »

So after getting my timing where I want to start at my idle seems a little higher then I want it, it's around 1800 and I want to idle it down to 1500 on the big and ugly when I make that adjustment should anything else be checked? I read somewhere a while back to use a feeler gauge in the center butterfly should be .004 to .007, just wonder why is that so important?

10

Wanted to sell / VP Racing oil

« on: April 26, 2022, 10:47:23 AM »

VP Nitro 70 weight oil, 2 cases $70 per case picked up or $90 a case shipped.

11

Matt Shaff's Engine Shop / Re: Cam help and info.

« on: April 26, 2022, 07:05:17 AM »

Stupid question. Have you checked actual cc's in combo? Actual not advertised. They rarely are the same. Not trying to be insulting just know how much difference there can be.

Yes sir these heads have been fully CNCD and chambers fully softened, I ran this exact combination as a Max effort nitrous combination, running a .070 copper head gasket to help get the compression down some..

12

Matt Shaff's Engine Shop / Re: Cam help and info.

« on: April 05, 2022, 10:05:28 AM »

Right on thanks Paul for the info.

13

Matt Shaff's Engine Shop / Re: Cam help and info.

« on: April 05, 2022, 05:59:18 AM »

Yes pistons are already flattops so can't do much there, heads I have now are 55cc so the new set I'm looking at will be 65cc or they have a 70cc and much better flow just new technology..

14

Matt Shaff's Engine Shop / Re: Cam help and info.

« on: April 05, 2022, 04:06:54 AM »

Ok sounds good, I was hoping I could run this cam for now and get the bugs worked out, unfortunately my compression is 12.5 because of the small chambered head running a .070 head gasket to get it to 12.5, do new heads and cam will be next winters project change.

15

Matt Shaff's Engine Shop / Cam help and info.

« on: April 04, 2022, 06:02:39 AM »

So I have this LSM Cam in my application that I have had for 15 years really been a great piece, I called LSM last week and there saying it won't work with a blower set up, I'm sure they just want be to buy another camshaft from them, I would like to list the specs and get the opinion of other blown application racers.

Fire order 1-8-7-2-6-5-4-3
Intake lift at 50 470    Exhaust lift at 50 460   
Intake duration 282.   Exhaust duration 296
Intake opens 27 BTDC   Exhaust opens 82 BBDC
Intake closed 75 ABDC  Exhaust closes 34 ATDC
LCA 114
overlap 61

Running 1.5 Jessel rocker arms  Intake lift 705    Exhaust lift 690