[Stan Weiss]

Originally Posted by GTOGEORGE

I be mad 2 passes down the 1/4 mile….. still playing with the tune ( trying to creep up on the combo).I lost some compression with the new head (my other heads were cut a few times). Best has been a 8.12 BUT I’m only running a 49 top pulley (normal I run a 47 top pulley).
My next pass I will change to the 47 pulley…..I need to run a 8.05 or quicker to stand a chance in eliminations tomorrow.
On a good note I did get my bump box finally working…..right now it’s bumping 6” at a time. The staging beams are 7” apart so it should be just right. The idea is to bump in as deep as possible without turning off the tip bulb.


GTO George

Originally Posted by misterp266

ET & MPH are just numbers, same as boost. It’s winning the round that really matters.

Yes winning is what counts. But George is saying he needs to be able to run quicker.

Stan

PS Just a guess he is running off of a 8.05 index.

[GTOGEORGE]

Originally Posted by Stan Weiss

So you need to stage as far forward as possible to make up for a slow reaction time. While at the same time increase your et and lowering your MPH. lol

Stan

Yes you are 100% correct. It’s a pro tree….my car is not set up to run a pro tree and my reaction time at 67 years old isn’t the best. I’m still better then some but like you said winning rounds is all that matters that’s why the bump box. I’ve gotten down to the semi’s twice but to take that next step I had to decrease my reactton time.


GTO George

[GTOGEORGE]

Originally Posted by misterp266

ET & MPH are just numbers, same as boost. It’s winning the round that really matters.

That’s 100% correct…it’s going rounds an winning!


GTO George

[GTOGEORGE]

Originally Posted by Stan Weiss

Yes winning is what counts. But George is saying he needs to be able to run quicker.

Stan

PS Just a guess he is running off of a 8.05 index.

8.0 index.
………….and because I’m staging deep I need 7.90’s
GTO George so with deep staging I’ll be 8.00.


GTO George

[GTOGEORGE]

Originally Posted by GTOGEORGE

I be mad 2 passes down the 1/4 mile….. still playing with the tune ( trying to creep up on the combo).I lost some compression with the new head (my other heads were cut a few times). Best has been a 8.12 BUT I’m only running a 49 top pulley (normal I run a 47 top pulley).
My next pass I will change to the 47 pulley…..I need to run a 8.05 or quicker to stand a chance in eliminations tomorrow.
On a good note I did get my bump box finally working…..right now it’s bumping 6” at a time. The staging beams are 7” apart so it should be just right. The idea is to bump in as deep as possible without turning off the tip bulb.


GTO George

So it looks like on my 8.120 pass I melted a plug, that would account for my mph being down 3mph for the first pass. I just jetted up from 212 jets to 218 but I also decreased my pulley from 49 to 47.


GTO George

[hojs69]

Go get'em!

[GTOGEORGE]

So my final timed run turned to **** when I went to bump in and it triple bumped it…..a wasted timed run so im basically going into eliminations blind folded, lucky me! The first round will be ran in a little bit!


GTO George

[GTOGEORGE]

Well not great news…..for me anyways. I basically got my butt kicked in the first round ( a little bit of my fault and some of the cars fault). I watched my opponent leave with means my light SUCKED and then the car ate a plug of two at a ore 600 feet so it ran off. My new high helix doesn’t seem to be doing what I was told/hoping for! When I get home I need to pull the plugs and check the plugs also need to take a compression test then I’ll check my fuel pump to make sure it’s not acting up. If nothing changes I’ll switch blowers and get ready for the Pontiac race in a few weeks…..maybe.


GTO George

[Stan Weiss]

Originally Posted by GTOGEORGE

Well not great news…..for me anyways. I basically got my butt kicked in the first round ( a little bit of my fault and some of the cars fault). I watched my opponent leave with means my light SUCKED and then the car ate a plug of two at a ore 600 feet so it ran off. My new high helix doesn’t seem to be doing what I was told/hoping for! When I get home I need to pull the plugs and check the plugs also need to take a compression test then I’ll check my fuel pump to make sure it’s not acting up. If nothing changes I’ll switch blowers and get ready for the Pontiac race in a few weeks…..maybe.


GTO George

George,
Sorry to hear about your problems. Along with the compression test you should also do a leak down test.

Stan

PS Was this the same cylinder that ate a plug before?

Just how much did the new heads lower your CR?

[twooldgoats]

Originally Posted by GTOGEORGE

..... My new high helix doesn’t seem to be doing what I was told/hoping for!......


GTO George

It sounds to me like it's doing exactly as it was designed to do: pumping more air. The burned plugs are probably because your carbs can't keep up with the fuel need--running too lean. What are your EGTs?



Jim

[GTOGEORGE]

Originally Posted by twooldgoats

It sounds to me like it's doing exactly as it was designed to do: pumping more air. The burned plugs are probably because your carbs can't keep up with the fuel need--running too lean. What are your EGTs?



Jim

That’s possible but I’ll really need to look at my past et slips from this race but I don’t think so………I know my car really well.
As for get numbers or any engine numbers I didn’t get any the idiot driver kept forgetting to run on the data recorder and when he did on the last pass it didn’t record!!! Sometimes it just ain’t your day or weekend in this case! LOL!


GTO George

[twooldgoats]

Originally Posted by GTOGEORGE

......
As for get numbers or any engine numbers I didn’t get any the idiot driver kept forgetting to run on the data recorder ......


GTO George

I've got mine set to come on automatically. If I had to remember to do it, I wouldn't have any numbers at all. Too many things going on at once. This old man makes as many of them automatic as I can,


Jim

[johnta1]

Ron's Toilet time!
Pick up a bunch of time.

[GTOGEORGE]

Originally Posted by johnta1

Ron's Toilet time!
Pick up a bunch of time.

Well its the intake......no place to put any port injection, maybe ill have KRE make me a Billet intake for next year!

GTO George

[GTOGEORGE]

Originally Posted by twooldgoats

It sounds to me like it's doing exactly as it was designed to do: pumping more air. The burned plugs are probably because your carbs can't keep up with the fuel need--running too lean. What are your EGTs?



Jim

You know looking back at my ET slips back in 2019 at the same race when i was running 8.00's my 330 times are the same and i was running a bigger pulley (46 then and 49 now).
I didn't get enough full passes to have any concrete evidence about the high helix blower. My fuel pump my be not working right sooooooo that would melt plugs because of lack of fuel. Ill check it out when i pull my junk off the trailer.


GTO George

[GTOGEORGE]

A few ET slips one (on the left) is from the 2019 race and the other two are from this last weekend.
The race in 2019 i had a 46 pulley and the ones from this last weekend I had a 49 pulley.
Remember these are all bumping in DEEP!

GTO George

[Stan Weiss]

George,
Interesting. As your 60 foot time improved on each run. You 60 to 330 and 330 to 1/8 split times got worse.

Can you post up those time splits and show the 1000 times?

Stan

[GTOGEORGE]

I started to melt plugs just before the 1/8 mile, thats why the MPH is down .
thats why im only looking at the times up to the 330.
GTO George

[GTOGEORGE]

I’m troubleshooting my melted plugs and can’t come up with anything, psi for fuel is the same at all carbs. If the back is lean then the front should be worse but no?

GTO George

[twooldgoats]

The pattern will depend on your blower outlet and the pattern will almost certainly be different from your old blower. That's where individual cylinder EGT's are so helpful.

Jim

Originally Posted by GTOGEORGE

I’m troubleshooting my melted plugs and can’t come up with anything, psi for fuel is the same at all carbs. If the back is lean then the front should be worse but no?

GTO George