[Engo]

Originally Posted by NHRASuperStock455SD

It shouldnt be long now! What a street engine! Thanks to Ed Page, BES, Turbonetics, and a big thanks to Tom Vaught!

Looks great!

How are you fixing the water cross over miss match to the water pump?

[quick67bird]

Originally Posted by Engo

Looks great!

How are you fixing the water cross over miss match to the water pump?

It looks like they are plugged to me. A lot of people just plug them so they don't have to worry about a leak.

[cgeise]

If I can ask -- Why such a large injector ??

[RAIV-Z]

The injectors were sized for 2200+HP.

[cgeise]

Originally Posted by RAIV-Z

The injectors were sized for 2200+HP.

Was that based on a specific fixed fuel pressure -- or boost referenced regulator ?

[RAIV-Z]

Specific Fuel Pressure I believe.

[Tom Vaught]

Originally Posted by cgeise

Was that based on a specific fixed fuel pressure -- or boost referenced regulator ?

Ed, You need to set the Fuel Pressure Regulator (using the adjustment on the regulator for the fuel pressure that you want under naturally aspirated conditions, example 65 psi.

If you have a PROPER regulator, when you have 1 psi of boost you will have 66 psi control pressure, but the injector will still see an actual 65 psi across the injector.

When you have 10 psi of boost you will have 75 psi control pressure, and the injector will still see an actual 65 psi across the injector.

When you have 30 psi of boost you will have 95 psi control pressure, and the injector will still see an actual 65 psi across the injector. This is called a 1 to 1 Boost Referencing Regulator which is what you ALWAYS want. Otherwise you are constantly chasing the air/fuel ratio on the engine due to the boost pressure offset.

Aeromotive makes a very nice regulator (with the proper flow rate) that does this. Steve Morris Dyno has a proper fuel pump and regulator to provide 3000 hp of fuel at the correct injector pressure to the engine.

Tom Vaught

[NHRASuperStock455SD]

Originally Posted by Engo

Looks great!

How are you fixing the water cross over miss match to the water pump?

Tony refuses to use a thermostat bypass on any of his engines. I asked him to mill it for matching, but looks like he didnt. We simply mill it down on both sides so it matches up. It is naturally up due to the raised intake ports 5/8 inches.

[70 bird]

That motor looks beautiful Lynn!

[Engo]

Originally Posted by NHRASuperStock455SD

Tony refuses to use a thermostat bypass on any of his engines. I asked him to mill it for matching, but looks like he didnt. We simply mill it down on both sides so it matches up. It is naturally up due to the raised intake ports 5/8 inches.

Ok. Just asking because you said it was a street engine. I think even Tony would agree that the bypass is good to have for a true street engine.

Looking at your stuff Lynn, I think that when I am done with my current BBC this is the way I will go.
Insane amount of power yet be streetable...thats the way I like it

[NHRASuperStock455SD]

Originally Posted by Engo

Ok. Just asking because you said it was a street engine. I think even Tony would agree that the bypass is good to have for a true street engine.

He doesnt believe on bypasses on any of his engines. He also isnt buying that this engine is a street engine ;-). No engine making this power is a street engine I think was his exact words. But, it doesnt have a race cam or valve train, so I call it a street engine. It is actually very mild in that respect.

Originally Posted by Engo

Looking at your stuff Lynn, I think that when I am done with my current BBC this is the way I will go.
Insane amount of power yet be streetable...thats the way I like it

Thank you Engo, we are hoping to give people who have given up and gone BBC a reason to come back to Pontiacs.

[Region Warrior]

Havent had a bypass on my street engines since early 80's.

[cgeise]

the boost ref regulator is the right way - as far as a "street" engine - I see overheating being an issue --

[Engo]

Originally Posted by NHRASuperStock455SD

He doesnt believe on bypasses on any of his engines. He also isnt buying that this engine is a street engine ;-). No engine making this power is a street engine I think was his exact words. But, it doesnt have a race cam or valve train, so I call it a street engine. It is actually very mild in that respect.

You have dynoed yet?

With EFI you can have several maps. A docile street map with about 13-1500hp and run it on E85 or maybe even pump gas. Then another full tilt racemap for the track, run it on race gas or methanol. Guys are doing it around here.

[RAIV-Z]

The 69bird will have a 25.3 cert, will it be a street car or streetable?
We haven't dynoed it yet, as we still have a few things to work out. I will be using a boost referenced fuel regulator and most likely a belt driven fuel pump. I do have an extra-large custom aluminum radiator with 2 fans.
Anyone sell a good bolt-on kit mech fuel pump setup for a Pontiac?
I appreciate everyone feedback, positive or negative. The goal here, like Lynn stated above is to give diehard Pontiac guys who have switched to Chevy a reason to come back.

[jdw_poncho]

Ed
I was thinking about how you could bolt the fuel pump to a engine with a timing cover. I took my pump off my motor plate tonight and lined it up on another engine I have on a stand. It looks like if you built a plate to use as a fuel pump block off that had another plate welded onto the edge, you could mount the pump to it. It would need a small brace behind it but I think it would look good and be down far enough to stay out of the way.

I had waterman sell me a BBC mount and told them to make me a deal and keep rear mount. They just sent me the fuel pump mount, hardware and standoff's.




Or you could do this and keep the cell in the back. Looks like a nice package for the street.

http://www.watermanracing.com/Pages/fuelpump25.html

[Tom Vaught]

The Butler/Quillen Team have a Belt Driven Fuel Pump on their engine.
Take a look at the install on that deal. Also talk to John Welter and Mike Cooper.

Tom Vaught

[Travis Q]

We are cam driven not belt driven. Made the switch last winter when we upgraded fuel pumps and installed the alternator.

TQ

[cgeise]

Merry Christmas Travis --

[Travis Q]

You too, Curt!