pro charger intake manifold - Lateral-g Forums

copo69 · #1 04-20-2008, 11:00 AM

what would be the best intake manifold choice for a sbc with a d1sc pro charger . ?

ProdigyCustoms · #2 04-20-2008, 01:39 PM

Any single plane will work fine.

copo69 · #3 04-20-2008, 06:09 PM

well i have the weiand . we already know that manifold is out . a friend just gave me an early edelbrock tm 1 the early torkmaster series it is an open plen from 2500-6500 but something keeps telling me i should spring for a victor jr or a super vic and have it blended and matched to my heads. any intake i9 use will get the blending and port matching . what ya think frank ? go with the early torker or spring for the victor. ??

how was that vacation . hope you guys had fun and got to relax.

Blown353 · #4 04-20-2008, 09:56 PM

My preference would be for a smaller single plane... a Vic. Jr. works great but the TM1 should work well too.

I have also used an RPM Air-Gap dual plane with my old blowthrough setup; off-boost manners especially at low RPM were a little better than a Vic. Jr. and mixture distribution at WOT was still pretty good with the dual plane but not as good as with the Victor Jr.

A super vic is WAY too big for a SBC that sees any street duty. I daily drove my car with a Super Vic for a while and it sucked. No mixture velocity and no power down low, and from putting around town it had poor mixture distribution and needed way hotter plugs in the 4 corners. It will work fine under boost but off-boost it's just too much intake and performance and driveability will really suffer.

ProdigyCustoms · #5 04-20-2008, 10:57 PM

I am with 353, a Victor Jr is perfect in most cases.

copo69 · #6 04-21-2008, 04:15 PM

thanks frank and 353 vic jr it is then. checked out your web site 353 nice ride. the bracket you fashioned off of the header tube to the pro charger bracket should i figure into one of them myself . and id like a lil more information on your belt tensor the spring pressureized one. is it something i can order or would i have to send in my bracket for it.

JamesJ · #7 04-21-2008, 04:46 PM

I think that he got it from SD Concepts or somethign like that. if you do a search you will most likely find something, they have a web site as well.

http://www.sd-concepts.com/

copo69 · #8 04-21-2008, 05:43 PM

actually james the link you listed is good and i have been to the site. thanks much. any of you guys have a cam recomendation for this build ? i have a few on the shelf that are new but none of them seem to be what anyone would call a perfect cam yet..
https://lateral-g.net/forums/showthread.php4?t=14444
the linik is to the other post where i listed the cams i have new unused . im open to suggestions.
thanks

Blown353 · #9 04-21-2008, 06:00 PM

Yep, Scott at SD Concepts did the tensioner and idler pulley mod. I would not have a serpentine setup on a Procharger any other way-- although I have yet to try ATI's new "all-in-one" serpentine bracket & tensioner setup.

Last time I called ATI to buy a different pulley for my car, the tech asked my current combo in and did a double take when I told him how much boost I was running with an 8-rib belt. He asked how I was getting away with it and when I told him I had braced their bracket and also had one of Scott's tensioners he laughed and said "yep, that will do the trick." ATI is well aware of the shortcomings of many of their accessory brackets but even after all these years still sells them.

I have over 20K miles now on my original 8-rib belt at 15 psi (first on a P1SCH, now on a D1SC) and it still looks brand new and doesn't slip... in fact I just did another WOT datalog last night and it's still holding great!

As far as a cam, you would be best served to fully define your goals for the car and call an expert in the field like Scott (he specializes in boosted engine builds) and let him recommend the cam. He will want ALL your info down to the nth degree so he can come up with a good recommendation. If you haven't started the build yet or purchased components that's even better as you can build for boost from scratch.

If it's a street driven combo the final recommendation will probably be for about 9.25:1 CR with piston & CC coatings, good heads with an excellent I/E ratio and probably inconel exhaust valves to be on the safe side, the cam for a 350 will probably be in the 23X / 24X range with a 113-114 LSA for a milder but still very good HP setup, and 24X/25X range at .050 with a 113-114 LSA for a more aggressive setup, exact cam specs to be determined based on CR, head flow, vehicle weight, gearing, goals, etc.

It really is best to consult an experienced builder for something like this, the devil is in the details and you can leave a lot of power on the table if you choose your combo poorly. Use their experience (and mistakes) of previous builds so you can nail yours the first time.

copo69 · #10 04-21-2008, 06:17 PM

thanks 353 . im new to the blow through super charger and i do know there is a diffrence from the old 671 and 871 im used to so im doing some sniffing around. i already have a solid 355 sbc built with a cola crank carillo rods ross pistons and full cnc race prep package set of afr 195 eliminator heads my compression will be static someplace between 8.5.1 to 8.8.1 depending on head gasket. i was going to do another 871 build with a dyers blower and though this time id hide it under the hood so i went pro charger. im sure there is some things i will need to know and learn about the pro charger and the blow through type system. so im looking for all the good advice i can get . thanks much