1970 Firebird Twin Turbo Build

[carbuff]

Great rendering and the works looks top notch so far!

I have a quick question. I can't tell from the pics... Is that front bumper/nose original or a reproduction? I'm trying to find information on the quality of the repros... If that is one, I'd love to hear your opinion!



Thanx, and good luck with the build!

[tcronkright]

Great rendering and the works looks top notch so far!

I have a quick question. I can't tell from the pics... Is that front bumper/nose original or a reproduction? I'm trying to find information on the quality of the repros... If that is one, I'd love to hear your opinion!

Thanx, and good luck with the build!

The front nose is a reproduction from VFN Fiberglass out of Addison, IL. Check their site out: http://www.vfnfiberglass.com/site.htm Extremely light weight and great quality. The stock nose will crack and warp over time. That's why we went with the fiberglass. Thanks.

[carbuff]

The front nose is a reproduction from VFN Fiberglass out of Addison, IL. Check their site out: http://www.vfnfiberglass.com/site.htm Extremely light weight and great quality. The stock nose will crack and warp over time. That's why we went with the fiberglass. Thanks.

Good to know, thanx! Any thoughts on the quality of that piece as received? Did you have to do much work on it to achieve the fit you are looking for, or are they cast pretty well out of the box?

Feel free to take this to PM if you like. I appreciate the input though!

[gearbanger]

Man that is a really cool project. I love the depressed stripe and the tail end design. And I love it that you are using Pontiac power.

I would highly recommend using one of the forged cranks available for the Pontiac v8 over the eagle. I think the eagle is really only safe for about 700-800 hp and I know you may start out there but you will undoubtedly get froggy for more power later. It would be $700 well spent for the forged crank.

[tcronkright]

Agreed. This engine should make a bit over 2,000 hp with high boost. We will likely limit it to around 1,300 hp and about the same torque at the rear tires. This will run on pump gas. Here are some specs on the engine:

Butler Performance AI2 Pontiac 400 block bored to 475 cu. in.
Eagle forged 4340 crankshaft
Eagle H-beam forged connecting rods
Ross custom forged pistons 8.5:1 compression ratio
Comp Cams Hydraulic roller camshaft (All Speed Performance turbo grind)
Comp Cams hydraulic roller lifters
Kaufman KRE 340 CFM aluminum CNC ported cylinder heads
Stainless steel Ferrea valves
Comp cams valve springs and retainers
Comp Cams Chromoly pushrods
T&D shaft mount Rocker arms
Comp Cams billet adjustable timing chain
Melling high volume oil pump
Canton racing high capacity oil pan and pick up
Custom Visner Engines intake with dual fuel rails
Custom Visner Engines dual throttle bodies
FAST injectors - two per cylinder
Billet Specialties accessories drive

Butler AI2 475 cu. in. Performance Block





Here is a comparison of a standard Chevy 4-bolt main and the mains we are using. Need the strength when we apply the boost


Turned crank


Custom pistons and connecting rods



I just left Visner Engine's shop and they were milling the top of the intake out of this chunk of billet. Here is the CAD design of the intake. We are going to build a set of custom throttle bodies with the linkage concealed under the intake so the entire top will be smooth. The CAD shows one fuel rail per side, but we are running two per side as we will have two injectors per cylinder.

Man that is a really cool project. I love the depressed stripe and the tail end design. And I love it that you are using Pontiac power.

I would highly recommend using one of the forged cranks available for the Pontiac v8 over the eagle. I think the eagle is really only safe for about 700-800 hp and I know you may start out there but you will undoubtedly get froggy for more power later. It would be $700 well spent for the forged crank.

[SS1156]

: and that doesn't even begin to say how e'fing sick that car is. Awesome work man.

[radback]

what a beast it will be!

Do you have any rear view render?

[tcronkright]

Here are some pictures of the rear including some build renderings that show the detail.

[radback]

Here are some pictures of the rear including some build renderings that show the detail.

I'm in love!

PS: I see negative camber, is IRS planned? (vette?)

[malbright]

I all of the sudden want to build a firebird !!!! That thing is NICE!!!!!

[Doug1]

The front nose is a reproduction from VFN Fiberglass out of Addison, IL. Check their site out: http://www.vfnfiberglass.com/site.htm Extremely light weight and great quality. The stock nose will crack and warp over time. That's why we went with the fiberglass. Thanks.

I LOVE the rendering. Best I have seen by far. I am curious how close the build gets to the rendering. I have a few questions because I am trying to build something low and slung from a second gen TA. No disrespect meant in any way, I'm just trying to avoid mistakes so I am just trying to learn!

I noticed that the rendering has wheel well flares that aren't in the build thus far. Will they be added or is there a reason they were left out. Since the wheels are already on it, would they look set back too far now if the wells are flared out?


Will the running lights be round as drawn on the metal work or square as in the drawing?

Will the lower inlets in the front grill be installed or will it be solid as it is now?


Like I said, that is just amazing. Stunning rendering. I hope the builder gets it close.

[tcronkright]

Thanks for the interest. We are very excited about this build. As for the wheel flares, the front fenders were widened by about 1" and tailored back into the door so the factory seem remains constant. The wheel flares will continue on the back side of the rear wheel opening and tie into the rear diffuser panel.

The running lights are an addition to the original drawing. We opted to make a custom metal valance and chin spoiler. We will cut in 3" round running lights. We will also cut in the lower inlets and trim them out. The ride height will be as shown in the rendering.

I LOVE the rendering. Best I have seen by far. I am curious how close the build gets to the rendering. I have a few questions because I am trying to build something low and slung from a second gen TA. No disrespect meant in any way, I'm just trying to avoid mistakes so I am just trying to learn!

I noticed that the rendering has wheel well flares that aren't in the build thus far. Will they be added or is there a reason they were left out. Since the wheels are already on it, would they look set back too far now if the wells are flared out?


Will the running lights be round as drawn on the metal work or square as in the drawing?

Will the lower inlets in the front grill be installed or will it be solid as it is now?


Like I said, that is just amazing. Stunning rendering. I hope the builder gets it close.