making a bbc efi manifold for my third gen camaro. using weiand base manifold used a bridge port to mill some off the top for hood clearance .made a adapter plate and used the holley lsx top plenum 102mm opening still working on it just need to weld it and do some port work and done. here are some pics.

 

 

Sorry to drag this one from the dead, and a long shot on getting a response. I just saw this post, I am doing a Gen VI 496 swap on my car, and am having a hard time finding a reasonable mpfi intake for oval ports. How did this turn out? Cool idea!

 

still not done with the manifold but i did do some porting on the runners and port match to gasket .gonna be using holley dominator ecu or the aem infinity for my engine

 

converting from carburated over to efi but im gonna try to make power over a single plane,edelbrock victor jr set that im currently running,


lets hope it makes more than this 509rwhp and 479 rwtq at 7000 rpm

 

Awesome ingenuity, that LS upper is pretty pricey though right? I wonder if I could modify a Stealthram upper, or build something similar. I am anxious to see your results.

I worked with Holley HP on another project, it is user friendly and very powerful. I was really impressed, and I know Dominator is a step up. I am going to work with the 411 a little more, just because I like to complicate things.

What are the specs on the motor?

 

gen 6 454 bored .030 over
wiseco forged piston 11 to 1 compresion
6.385 h beam wiseco k1 rods
502 forged crank with 4 inch stroke
comp cam solid roller 260/268 @.050 duatation .714/.714 lift
bowtie bbc heads 325 intake runner mild porting
jessel shaft rockers.

t56-currie 9 inch 3.70 gear

street car lol

 

Oh yea, that baby should have a lot more in her 11to1 solid roller.

Sorry to keep askin, you are running a setup very close to what I am planning. I am currently running an LT-1 t56, and am trying to figure out how it is going to mount up. What flywheel did you use with yours (I know you are on a ls1 t56).

Some stuff I have read is the LT-1 flywheel will actually mount up to the gen vi crank.

 

Interesting intake but i wonder how well it would compare to the edelbrock tunnel rams or single plane victor efi's. Looks identical to the sbc stealth ram base and those only could support so much power before the runner size was a restriction

 

i was running the ls1 t56 but the found a viper t56 put that in instead.i had the fly wheel made by a local shop that specializes in flywheels.billet steel using the 153t style stage 3 competition clucth .howe throwout bearing.t56 adapter plate with sbc bell housing. will be upgrading to a sfi scatter sheild soon because i like having feet

 

here is the link to when i did the t56 swap

https://www.thirdgen.org/forums/tran...trans-bbc.html

 

Very nice fab work.

 

Thanks ,here is a quick update on what ive done lately.bought a holley 105mm throttle body hoping to make it work with the 102 holley plenum with some minor port matching.i dont think it gonna work -_- .so im just gonna have to buy the 105 version and sell the 102.getting closer to finishing

 

There is no way that opening is 2mm smaller, maybe something like 90mm if the throttle body is 105mm. It wouldn't be that big a deal to open that one up to match the throttle body assuming it bolts on and there is enough metal there, by hand or on a mill if you have access to a bridgeport (it would be more work to fixture it on the mill then the cutting).

Why didn't you just bolt it to the top of the manifold since it already has bolt holes?

Didn't the original base have more shape to it, I'd be worried about airflow/distribution issues with that flat bottom.

 

got some more progress coming along ,also finally pulled the trigger on the dominator efi and holley universal harness.


the ecu is bigger than i expected was gonna mount it under the dash but change my mind

 

coming along very nice!

 

I worked with the Holley HP EFI, very nice setup, and I know the Dominator has tons of extra features. Please keep us updated on your progress I am really interested.

 

finally got the bbc to fire up
took longer than what i was thinking
also installed a borla cat back exhuast
installalled v bands
tig welded the whole exhuast sytem
aem fuel pump 50-1005 used -8 fuel line for fuel system

 

still need a new hood that will work with new set up and still need to buy some radiator fans.happy so far with efi
hope to have dyno number soon and some 1/4 mile times as soon as it cool down in CA.

 

 

Looks awesome. I want that intake lol. Gets me excited for my 555 bbc build.

 

some more pics of exhaust and finished wired engine bay. i still need to make a intake and other minor stuff

 

Does it run yet. How that intake work out

 

very nice

 

yeah i got it running already but wont have any dyno numbers yet maybe in one month.so far throttle response is a lot quicker , no more idle rich smell and it seems to rev faster sounds a lot better too

 

got dyno number from the the carb set up and the new efi set up.
i was happy the results i picked up a little up top lost a little down low.
also went to the drag strip and was faster than before!!

 

also have the time slip from the track @ fontana dragway
i was the left lane