Resurrecting the Blue 74 Javelin with a 401

 

Planned specs-

.30 over with Wiseco Pro Tru R-domes (expecting b/t 9.25-9.5 compression)

Stock rods w/ ARP hardware

Indy SR heads w/ extra headbolt holes (probably bowl port)

Torker intake w/ EFI conversion run by Big Stuff 3 ECU for sequential injection (42 lbs injectors???)

Powerdyne supercharger set at 6-7 lbs boost

Hooker super comp headers going to 2.5 dual exh w/ X-pipe

Comp Cams solid roller (276/280- 232/236 at .050 - .560/.580 lift)

Canton RR pan w/ external pickup and internal oil valley line

 

I think that covers the basics.  I know the compression would make some shake a little bit when added with a supercharger, but having read up on it, I think the centrifugal Powerdyne with aluminum heads, modern R-dome piston shape, and cam should be safe as long as I don't go nuts with too much advance on the timing. 

 

It will still run through my TKO Tremec and Ford 9" rear. 

 

 

 

 

Why run the years-old Torker design when there are so many much more modern (and scienced-out) intakes out there?  I realize when you are running boosted the intake runner design becomes almost nearly moot,  but more power is ALWAYS a good thing, right?

 

If I were you, I'd run either an Indy or an HLR intake.  Either one I think would be easier to convert for EFI, as well.  I doubt the Torker has enough meat to drill for injector bungs without welding some additional material to the tops of the runners.

 

As for the compression with a blower, I had a friend bolted a 8-71 Huffer to his SS396 '70 Chevelle that had 12:1 pistons in it.  Ran it 25% underdriven (thing only made like 3psi of boost)  but you know what?  That thing ran like a raped ape!  And held together for a long time until he finally decided to sell it.

 

The big stuff 3 system should be able to be set up with a boost retard, so the timing won't be too much of a problem once you get the spark and fuel maps dialed.

 

You may, however, consider adding an intercooler to the system of some kind and/or a water/methanol injection system to help keep the detonation at bay.

 

Can't wait to see it all together. 

 

And have you considered going Turbo rather than supercharged?  I've always wanted to put together a Twin-Turbo 401 and see what it would do.  Messing with desktop dyno once I came up with a 1200hp combo!

 

In the meantime, the 360 has been pulled from the engine bay and I've got 2 gutless 74 Javelins sitting in my garage waiting to be brought back to life while the weather is perfect down in the Phx area.  I had hoped to get a few rides in before the nasty summer heat came, but not looking too likely now.

 

In the meantime, I'm going to start wiring in the Big Stuff 3 ECU and harness and do some long overdue suspension and interior upgrades to the Blue Javelin and turn my attention back to the track car while waiting for the 401 to get finished.  Been throwing some ideas around for paint on the track car and after some intense pressure by the girlfriend, I'm considering Big Bad Orange with 2 black stripes over the top of the car.  My uncle has a 70 AMX painted BBO, and its got a nice "racey" look to that color.  Not sure how it would look on a "big" Javelin, but if not, I may go with a red.  Nice thing about Forza 3 is I can play with some ideas and get a sense of how they look.

 

My blown 360 was 30 over and is probably in need of another bore after the 20 years or so of abuse it saw, but I'm considering using that block in the track car so I might be interested, actually! 

Hopefully, I'll catch up with you this Saturday!!!