Unforgiven Project

OK Rick! I like what you did.
I am not very clever when it comes to computers or tuning, But it looks like that would help alot.
When I get to that stage in the build... I am going to really need your assistants !
I got really scared of EFI when I was reading about a guy who just spent alot of money on a new build and was in my situation.
He could not get the EFI correct and was hurting his break in .. I do not want to have those problems. I like carbs.
 
Unforgiven said:
I am not very clever when it comes to computers or tuning, But it looks like that would help alot.
Click to expand...
Do you have a laptop to use, this will be required? Or al least a desktop in the shop that you
can get close to with the truck to download the data.

Unforgiven said:
When I get to that stage in the build... I am going to really need your assistants !
Click to expand...
I'm no expert, but will be glad to help. Once you have the data thou, there will be lots of help
on this forum.

The carb will need to have adjustable passages more so than the usual Main Jet, Accelerator
Pump Cam and Idle Mixture. Keep this in mind when you to buy your carb. I drilled and tapped
mine, but you may want to buy it already setup.
 
Indycars said:
The carb will need to have adjustable passages more so than the usual Main Jet, Accelerator
Pump Cam and Idle Mixture. Keep this in mind when you to buy your carb.
Click to expand...

https://prosystemsracing.com/e85/

The carb is down toward the bottom of this site.. I like the SV1 carb..... But I most likley will be using the 4150 based E85 carb

I can buy a laptop if need be.. that will not be an issue.
 
I guess the laptop is not an additional cost is it, when compared to the EFI??? You would have
needed it anyway.

With such a custom built carb, maybe you don't need data acquisition.
 
Well... it is still just a carb . I'm not sure what custom means besides tailoring it to my engine specs that you did for me.
He was happy that I had all the precise info (and more) available for him.

Yes , The laptop will be easy to get by the wife cause she just bought herself a new tablet. So I don't think she will deny me a laptop.
 
LOL... Word has it here in Michigan that there is a company in Oklahoma called M&M Racing!!!
I actually heard someone mention that name in our local autozone store.
Wonder who could have possibly got that name circulating over here! LOL
 
Unforgiven said:
Well... it is still just a carb .
Click to expand...
I didn't see where it said anything about the internals, so the question still remains if it's really
adjustable. I suppose you could just fine tune those 3 things that are normally adjusted.

OR..... are you ready to start drilling on a brand new carburetor ??? :eek:

Unforgiven said:
Yes , The laptop will be easy to get by the wife cause she just bought herself a new tablet.
Click to expand...
That's cool, how much did she spend?

Unforgiven said:
LOL... Word has it here in Michigan that there is a company in Oklahoma called M&M Racing!!!
I actually heard someone mention that name in our local autozone store.
Wonder who could have possibly got that name circulating over here! LOL
Click to expand...
I'm not aware of any M&M Racing in Oklahoma. Yes I did call my dirt racing enterprise M&M Racing
so I put that on your report for fun, but that was back in the 80's. I only used it for tax purposes.
 
Upon further inspection, I do see in the pics of those carbs the high and low speed air bleeds which can be changed from the outside. There are still several passages inside that can useful.
 
I saw a new replacement for the jet block that enables jet changes without opening the fuel bowls. That is so slick.
 
Grumpy said:
we lost maniac, I really hated to ban someone that provided good insight at times
but constant confrontational posts
and repeated warnings had ZERO EFFECT,
he obviously was not willing to play nice with others
Click to expand...

Bummer,but it's YOUR HOUSE Paul.
Gota see if I can dig him up on Facebook altho I hate that place.
I joined my old Vo Tech HS Site to try & find a fellow student who bought a Cheetah out of the Philly Trading Times back then.
Then got all kind of Facebook requests
 
Indycars said:
are you ready to start drilling on a brand new carburetor
Click to expand...

That does not phaze me when I have men like you to guide me. :)

Indycars said:
That's cool, how much did she spend?
Click to expand...

HA... she would not tell me.. But I seen a Home Shopping deduction in our checking account for $100 ;)


Indycars said:
I'm not aware of any M&M Racing in Oklahoma. Yes I did call my dirt racing enterprise M&M Racing
so I put that on your report for fun, but that was back in the 80's. I only used it for tax purposes.
Click to expand...

LOL ... I had shown some of my friends the data sheet you posted for me, one of them happens to work behind the counter in the auto parts store.

While I was in there... A guy was asking about performance builds and my buddy , who knew I was in the store, just off to the side of the counter, had told the guy that he deals with M&M racing in Oklahoma.
It was an inside joke between him and I. But the funnyest part was when the guy replied "YEA, I heard of them"... :D:D:D:D


Indycars said:
Upon further inspection, I do see in the pics of those carbs the high and low speed air bleeds which can be changed from the outside. There are still several passages inside that can useful.
Click to expand...

When I get ready to order in a couple weeks, we can go over what you need me to do with the carb , and I can relay it to Patrick. Maybe he would already know what you are asking for .

JohnHancock said:
I saw a new replacement for the jet block that enables jet changes without opening the fuel bowls. That is so slick.
Click to expand...

HI John.. was that something you seen on those carbs? Would that be those VENOM blocks?

Night_Stalker said:
Bummer,but it's YOUR HOUSE Paul.
Click to expand...

Hi Night Stalker... yes it is a bummer... I did like talking with Brian, and he has given me alot of good advise.
Though I never could figure out what he was talking about in some posts... but I started to put pieces together.
I really hope the best for him. I'm going to miss laughing at some of his comments!
But no matter where you are there are always rules to be followed in life.
 
I got a few pics for tonight.
Mike I snapped a pic of the air dry system I made for when I was painting. The filter on the floor was the last line of defense before I connected my air line.
It was attached on the right side of the system in the middle. Those valves at the bottom where for draining what water had accumulated . The jar and hose are what I use to bleed brakes with. I just add a small amount of brake fluid into the jar and stick the hose into it. On the other end I push the hose over the bleeder screw after I have cracked it open. then just pump the pedal until all the bubbles are done coming out of the bleeder screw. The clear hose makes it easy to see the bubbles, and it is a one man job.
IMG_0422.JPGIMG_0421.JPG

I need to remount and plumb in a new air system along the walls now that they are sheeted.
 
I had to remove the block from the engine stand so I could mount the rear seal adapter plate onto the block.
I ran into an issue though...It looks like the holes near the bottom of the block are shoulder bolts. Each being a different size. o_O
I will talk to GM performance tomorrow and see what is up with them.

In the mean time... I wanted to show you guys the alignment tool I turned down on the lathe. I made it out of a piece of Delron that we had laying around.
It is super dense and I though it would be great for not scratching anything.:)

IMG_0423.JPG IMG_0424.JPG IMG_0425.JPG
 
machining a custom made Delron alignment tool is a great idea
 
Thank you Grumpy..! I used my dial bore gauge to measure the inner diameters of the rear cap . but I had to use my wire EDM machine
to pick up the inner diameter of the adapter plate because it was way to narrow to get a good reading with my bore gauge. I suppose
I could have used snap gauges... but hey... when U have use of a cnc machine, why not go for precise accuracy! Right!
 
Looking back on the pic... I should have had more light to shine down into the holes in the block, for clarification.
The one on the right measures .437 diameter , about an 1" deep ( for what looks to be a dowel), with what looks to be a 10-24 thread in the bottom.
I am having a hard time finding hardware for this... I had a thought of making a hollow 7/16" dowel pin to install into the block, and have it stick out about 1/8" so the seal adapter plate would be located and never move. Being a hollow dowel... I could then use a 10-24 (or what ever I find that thread in the bottom to be) to bolt the adapter onto the block.

index.php
 
After doing more research, and listening to what AutoWis is suggesting.
I have been trying to learn as much as I can with EFI.
Brian and AutoWis both suggested that the Super Sniper 1250 would be a good choice.
I have found that I do NOT need a crank sensor if I go with what I have put together down below.

Rick ran a program for my build and we expect 700hp.
I have factored in a fuel pump size of 340lph
I did this by multipling 700HP x .65 B.F.S.C. (for E85) = 455 pounds per hour.
455 / 6.3 (weight per gallon of fuel) = 72.2 gallons per hour.
72.2 gallons converted to liters =273 liters per hour

This shows that a 340lph pump will work.

So This is a package I came up with:

https://www.jegs.com/i/Holley/510/565-300K/10002/-1 This is the ignition kit

https://www.jegs.com/i/Holley/510/550-513/10002/-1 This is the EFI unit

https://www.holley.com/products/fue.../fuel_cell_efi_fuel_pump_modules/parts/19-370 This is the fuel pump


https://www.jegs.com/i/JEGS/555/111914/10002/-1 This is the fuel line


https://www.jegs.com/i/Holley/510/162-564/10002/-1 This is the pre filter

https://www.jegs.com/i/Holley/510/162-554/10002/-1 This is the after pump filter

Does this look like a system you guys think would be ok?

I know I have left out the AN FITTINGS , But I think I have covered 99% of the system.
If this looks like it will work, I can afford this setup.
 
According to your links you are using the same filter before and after the pump. I've normally
seen a 40 micron pre filter and a 10 micron after filter.
 
Indycars said:
According to your links you are using the same filter before and after the pump. I've normally
seen a 40 micron pre filter and a 10 micron after filter.
Click to expand...

Nope.. the pre filter is 100 micron and the after filter is 10 micron. Take another look at the part numbers.

I did get the rear seal adapter bolted on tonight. they where 1/4-20 bolts.
after some thought and a hunch..... I found that the bolts that I had in the first place where metric!
Someone threw in metric bolts in the 1/4-20 bin.
I did not get a pic because it looks the same as I posted last night.

It is hard to only get and hour or 2 during the weekdays to actually get to work on the motor,
while I spend any free moment I get during the day researching and planning the darn thing.

I now do not think I figured the pump and line size correct though. I did not add 30% for the E85 use.
I believe I may have to step up a 400 liter pump and 8AN lines.
 
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