biggtime

Gave up

B4Ctom1

might want at least a spring style wheel tensioner on the bottom of that belt to control centrifugal flap and belt harmonics

biggtime

You

B4Ctom1

I only suggested a spring style one because you have everything else pretty well taken care of. This one would simply only be along for a ride to control only "flap" nothing more.

mw66nova

iTrader: (13)

that looks frickin' awesome biggtime! reminds me of my buddies d-3 blown bigblock malibu station wagon (big bracket and cog drive)
do you run with any organization? if not, you should check out the NSCA! i am sure we have a place to put you! www.nsca-racing.com

83 Crossfire TA

iTrader: (2)

Generally, a spring loaded tensioner is required on any length of multiple v-belt because the stuff stretches as it goes. Without one you’d need to tension them repeatedly when new and when their temp changes. I don’t know that a cogged belt is the same, AAMOF, if it’s like the Kevlar cogged belts that I’m used to dealing with (used on large tape robots) I would be very surprised if it stretched.

I would have used one just because they’re easier to deal with after you get them right.

{Edited for lack of intelligent content due to no sleep… actually, haven’t gotten any yet, but waiting for something an looking in here again. Basically, the only thing worth while that I said here was that any idler/tensioner should be on the coast side of the belt (a belt can’t push, it can only pull), the drive side (pulling) will stay tight as long as the pulleys/cogs are turning and the belt is able to grab. The other side is the one that will flap around and cause problems, if it gets bad enough it will try skip and then rip off cogs. The only reason that you would put an idler on that side is if you were worried about belt wrap and wanted one on both sides of the blower pulley, and then you would put it closer to the blower pulley (practically as close as you can get it, you’re not going to effect the belt wrap on the big pulley much no matter what you do but the closer you get it to the small pulley the more belt wrap you can get with the same tensioning) not that there is anything wrong in with the setup in bigtime’s pics}

It looks good, but I still would have done what I suggested in other threads… instead of the big honking block of aluminum that you have there I would have welded a couple of ribs to it and made it out of thinner sheet or put big lightening holes in all the open spaces on something that thick. I bet that you could save >20# off that bracket and have something stiffer. For that matter, depending on the grade of aluminum you used, you might be able to make a lighter, more rigid bracket out of steel (of course, it wouldn’t look as cool as a machined out aluminum one). Hell, I bet that you could take close to that out of that one by carefully cutting out some of the big flat areas while barely affecting strength/stiffness (take a look at the vintage air brackets for a good example).

biggtime

It

83 Crossfire TA

iTrader: (2)

Ok, fine... that's what happens when you get an hour of sleep in the last 2 days... sorry... disregard all of that (I suppose that I could just edit my post but then your response wouldn't make any sense).

I thought that what I was seeing wasn't agreeing with what I was typing...

biggtime

N

B4Ctom1

I didnt even think about the tensioner being on the correct "side" either way, I want one, of everything, belt, bracket, tensioner, and idler in the configuration for P1sc/D1sc/F1 (like mine)

hey with that clocking are you going non intercooled?

biggtime

I

KS91Z28

Didn't they have a ProCharged Nova running in the 8's on pump gas and a 70 1/2 Z28 that had 945 HP that could be driven to car shows? That's not impressive?

Guido

Yea that is pretty impressive but when you have a bottomless budget (compared to most of us backyarders) then you can make a lot of cars that are unreasonable, reasonable. LOL

bigtime, get rid of that thing, and slap a T91 on instead!

It DOES look good though. Nice work

KS91Z28

Actually, that Camaro I believe is owned and funded by an average Joe like you and I.

biggtime

The

KS91Z28

Yeah, I think it does 12's NA and 8's with 26lbs of boost.

cdh67

The 71 is owned by a guy that works there. Just a average guy from what I understand. All the procharger guys I have meet have been really cool. I keep trying to get a job there but no luck.

BLWN1

How cheap are your brackets, or is it a 1 only setup?

Chris

biggtime

I

novass

iTrader: (1)

Why are you selling the d1....what is next?

JPrevost

Looks really good... though I feel bad for that crank . The ribs let you run less tension than a serp setup so maybe it's better off that way.
Another thing, to make it look really nice slap it on a mill and hog out some of that thick plate.
I love seeing rib belts, it's as if it's telling me "time to kick some...."

B4Ctom1

betcha betcha betcha he's going for a turbo! eh Bob, you gettin a turbo?
[/rumor generator]

biggtime

I

B4Ctom1

Will you be switching to a single plane?

biggtime

I

B4Ctom1

I have been following the intake that Holley uses in their EFI kit since before they bought the rights to make it. But I have never seen this one Bob, it is not like the one I am familiar with.

What can you tell me about it? does it fit 1206/1207 size ports? if not can it be ported? how much was it?

My friend has my old one (just like the one included in the holley kit) and he needs one to fit the 1206 sized ports (almost) on the 412 I am pulling from my B4C. He is going to buy the new edelbrock "Victor EFI" one but your intake there looks like it will take his fuel rails, and the edelbrock doesn't.

biggtime

Well

B4Ctom1

I thought for sure that holley would be making that one to make the guys at Bill Mitchells happy. They have been fitting their big inch small block crate motors (427-454 sbc) with the regular manifold like is on the JYD. The "other" holley one instead of having nice bungs, it has a "recess" that indents into the port runner to provide a machining shelf for the injector holes. Well this makes a protrusion into the ports hampering airflow and making turbulence as you could well guess.

Rainsed runner you say? well that might be just what my friend needs the pro actions on that 412 are raised runner (supposedly). what kind of measurement do those ports have?

as to the edelbrock not being available, according to summit if you buy it today it will ship today (I.E. in stock)

#29785 manifold at summit

biggtime

Support your local speed shop!

B4Ctom1

I was the local speed shop --> HERE

biggtime

Thats

B4Ctom1

Wow, I see now. I was wondering do you know does Holley even have a 1206 sized EFI intake? or do they only have the 1205 and the raised runner? It seems as if they simply skipped over a whole popular class of intake gasket size.

biggtime

They

B4Ctom1

Yeah that sad piece is the one we have already but we got ours before holley ever bought the rights to cast it (hence ours has no "holley" or holley numbers on it).

If you look right were the injectors go on that manifold you can almost see the hint of the huge protrusion that exists in the port roof right inside the opening. Whomever designed it must have designed the 7.5" GM rear.

You cant even begin to port this "dent" out without removing any chance of injector o-ring seal or the injector boss all together. The problem is that this "performance" EFI intake has an "innie" injector bung instead of an "outtie".

Anyways its a 1205 port size at best, this is the intake that Bill Mitchells guys didn't like and I don't blame them. I hope holley heeds the call and builds one that fits 1206/1207 gasket heads.

In the meantime it sounds like the 412 for the JYD will have to get the Edelbrock one. If not from Summit then from elsewhere. The way I see it, if summit has them then in stock then I could guess other shops "might" be able to order me one in.

As far as raised runners go I'm not even familiar with who makes raised runner heads. I think AFR makes one and Brodix, probably pro-action. I would be curious to know though.

biggtime

i

B4Ctom1

I don't think I want to do all of that.

But I do figure the heads I have now and the Edelbrock Victor EFI intake Part #29785 and fuel rails # 3630 fit a 1206 gasket and that intake is what we will probably be using.

Edelbrock site:

intake

rails

as far as those elbows for ford TB's go, they are fairly cheap to buy (around $100), Im not sure but I think that Precision turbo has them the cheapest.

biggtime

I

B4Ctom1

heck, the way it was sitting in that picture I thought that was the kind of placement you wanted.

biggtime

Actually it is pretty close to where i want it. Problem is there is none made that low, the ones are all cast, if i am going to have a sheet metal one i my as well make it myself. But thanks for looking out!

B4Ctom1

I have always understood them to be that shape and length so as to not hurt flow in the transition.

biggtime

I

B4Ctom1

it couldnt be any worse than a 4bbl TB with a carp air cap on it

biggtime

Thats

biggtime

Its

B4Ctom1

the lower heat edge welds look a little rough but a trip to a polishing wheel would make it Beautimus. Either way its better than I could do.

lteone

is that going to fit under the stock hood?


looks good:hail:

83 Crossfire TA

iTrader: (2)

What heads does that need to be fit to?

biggtime

0