Jim85IROC

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One of the other threads got me thinking, especially after I read what Kenn did. I've seen a few MPFI setups where a TPI plenum was adapted to work on a dual 4bbl intake. Other than using the TPI plenum, this sounds basically like what Kenn did. This also sounds like it could make for a much cleaner installation than the LT1 setup, and much less expensive than the Miniram. The biggest problems I see with the LT1 intake is that there's no coolant provisions, no distributer hole and the throttle body sits so low that interference can be an issue. This intake would seem to suffer none of those types of problems. By modifying a stock plenum, I could keep all of my stock sensors and wouldn't even have to screw with a new throttle cable.


http://www.holley.com/HiOctn/ProdLin...AMSM/5954.html

So... does anybody (Kenn?) have any information on this base? Holly lists the power band at 2,800 to 7,000 rpm. How does this compare to the miniram or LT1 intake?

Does this sound feasible to anybody?

e-man

If you dont want to go threw the trouble of fabing the TPI plenum how about this Holley's Stealth Ram. It's close to what you want it to look like and should be available soon.

Jim85IROC

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That's pretty cool. I wonder what it will cost though.

John Millican

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I used my stock TPI throttle cable when I converted to LT1 intake.

69 Mustang

That looks like a nice toy! but toys usually cost money. When will it be out and just how many organs will I have to trade in for it?

Dyno Don

iTrader: (7)

We were thinking about using that intake on my son's car, Kevin91Z. He has been in contact with his friend from Holley on getting that intake 50 state legal. But dont hold your breath. It probably wont happen. But it is available now if you call Holley. http://www.holley.com/

Kevin91Z

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How serious are you guys with this intake? Please let me know how much you'd be willing to pay for a 50-state smog legal version of this setup for TPI cars. If we can get enough interest, Holley might make it for us. It'd be awesome to have something other than the SuperRam for those of us who must use smog-legal parts. If the intake has both EGR setups and uses the stock fuel rails, injectors and throttle body, it would be a perfect replacement for a high performance TPI engine.

Jim85IROC

iTrader: (2)

I'd be interested if it cost less than a miniram. If it's not significantly less expensive, I don't really see the point.

Is a non smog-legal version of that available already? I couldn't give a rats *** about CARB numbers & such. In Vermont, if it's got a cat on it, it passes.

I guess if the price was right I could live with the unbelievably ugly plenum.

mystikkal_69

iTrader: (2)

[Quote]/b Kevin91Z How serious are you guys with this intake? Please let me know how much you'd be willing to pay for a 50-state smog legal version of this setup for TPI cars. If we can get enough interest, Holley might make it for us. It'd be awesome to have something other than the SuperRam for those of us who must use smog-legal parts. If the intake has both EGR setups and uses the stock fuel rails, injectors and throttle body, it would be a perfect replacement for a high performance TPI engine. /b[Quote]


i'd also be intrested in a smog legal version of this stealth ram, if not oh well. also long it doesn't cost an arm and a leg i'm happy. how much would we pay? well depends on what is included. you said that thing is that it CAN use stock fuel rails, injectors, and tb. welll maybe they'll make two versions? one complete kit and the just the intake? agreed as long it doesn't cost as much as the miniram alll of us on the board will be very happy to see another alternative to all these other overpriced intakes.

TheWraith

i'd be interested in that, depending on pricing.

i'm looking for an aftermarket efi intake/tb setup that uses a forward facing twin nostril TB, set up for a 58mm or can be machined to work with a monoblade.

Basically my 4 choices are:
1.Superram - pricey, and doesn't perform wonderfully i've heard
2.Miniram - goddamn overpriced
3.LT1 intake - seems good in theory, but probably wouldn't be adequate to feed a blown 400
4.Accel Proram intake with accel elbow for twin nostril TB - this is what i'm leaning toward, but hood clearance is a big issue. Price is reasonable however.

but anyway, something like that picture would be pretty trick.

mystikkal_69

iTrader: (2)

double post

TheWraith

on another note, i could give a rats *** about 50 state legality as well....currently no emissions in my area of pa, and whenever they bring it back, my iroc is getting collectible plates.

but if it used the stock fuel rails, etc, that would be damn nice.

Kenn

Jim85IROC

Most of the time/money I spent on the conversion was used to modify the base for EFI use
base $260
plain 12inch fuel rails from Holley $20 ea

cutting off the fuel rail mounting post
filing those injector boss pads true
measure and drilling the injector bosses - base and fuel rail
sanding all the injector bosses to the correct dimension
fabbing another fuel rail mounting system
make a rear coolant bypass

at this point the base is pretty much the same as the base of the Stealth Ram without the "ugly" plenum- and of course you could pay someone to do the work of converting the weiand base

The plenum is basically the same as the Stealth Ram - a 14.5in x 4.25in by 7in box - but my throttle Body had to be pointed downward 10 degrees to clear the hood- it was hitting the cover plate bolts on throttle body- and All the vacuum ports and IAC sensor can be hidden underneath

Compared to a MR or LTI base on what I've read here - the runners are longer - they're tapered and curved - the "D" shaped inlet is a little bigger than the outlet port at the head- the runner length is about 6 inches on the outside of the curve and about 5.5in on the inside- So I believe runners work to increase the velocity of the air from inlet to outlet - like a bernouli effect

I think the power band is 2500-7500 depending on what Ad you read but I'm pretty sure those #s are for dual carb apps - I make around the same low end torque blelow 2500 as with the LTR - I havent reved past 4500 though

A big concern to me was the Plenum volume - I heard that big helps top end power and could hurt "tip in" throttle response and going small having the opposite effect - so I went big and my plenum is about 300ci. - but you can make any size plenum - I got a 92TA and the max height of the penum worked out to be 4.25 in.

I can't comment on power differences I have a 355, AFR 58cc, 219/.525 w/ 1.6 rr hydrarev, stud girdle 52mmBBk, 24lbhr, 255lph fp, hooker 1.75 lt duals with X-pipe and dynomax bullets, fast chip burned for the same with Edelbrock LTR and I don't feel a big loss in low end torque - this is with 3.73 gears and a Tremec

For plumbing I used marine hoses/clamps and Aeromotive fpr nothing special

I really can't tell you if this is cheaper, less diffficult or will make more power than converting a LT1 intake like John - couldn't be less fun
goodluck
I'll work on pics

Kevin91Z

iTrader: (1)

I dont have prices, but here are the Holley part numbers for the intake as it sits: 7540 for the upper and lower intake, and 7540P for the polished version. The fuel rails are 534-185. You can reuse your stock or aftermarket throttle body, as well as the injectors and computer. You cant reuse your stock fuel rails because the connector goes straight across. That would hit the runners on the lower intake. There's more info and pictures on Holley's website under What's New.
I'm still talking with my contact regarding a 50-state legal version, so keep posting that you want one.

Jim85IROC

iTrader: (2)

Great Info Kenn!

mystikkal_69

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Keep the good info coming kevin.

89bonestockiroc

I am always happy to see another intake alternative for our cars. I would be interested in trying one of those stealth rams. Can they be bought yet? Has anyone contacted holley to see how much they cost? I called and gave them the part numbers from above and they had no idea what I was talking about. Please post if anyone gets some info on this thing.
Thanks

Matt87GTA

It's all in the price Kevin!!!...... And will this thing clear the hood (especially on a Pontiac)?????????

Matt_91RSTPI

I'd be interested if the price in line with the Super-Ram and MiniRam, moreso if it was cheaper than those two options. Are there any flow numbers for the Holly piece, or HP number from a motor running it. I'm also curious what the powerband would be comapred to the SuperRam or MiniRam. Keep us posted.

-Matt

89bonestockiroc

I was just wondering if anyone has any more info on the stealth ram intake yet. It was mentioned earlier that you can call holley to get one. Does anyone have the number to call to find out about this thing? I called a couple of the numbers on their website and they didnt know what I was talking about.
Thanks.

e-man

The intake isn't out bare yet. You could only get it as a full kit with commander 950 ECU or as a power pack kit PN#81503001 its basically everything that sits on top of the engine.Its a little expensive summit wants $1733.99 just have to wait till its out bare.Go to www.holley.com and look under new products its in there.

Kevin91Z

iTrader: (1)

I'm surprised the Holley techs have no clue, but I'm not surprised they havent informed all their sales guys... The intake has been out for a month now.

I dont have any new info, my contact hasnt gotten back to me since I last posted.

Kevin91Z

iTrader: (1)

Back to the top, I'm still researching this and hoping for the best.

Jim85IROC

iTrader: (2)

Me too.

I also emailed tunedport.com about a setup they have, but they never got back to me. They basically already had this setup for big blocks, but not small blocks. The big block setup uses a plenum that looks just like a stock TPI plenum, and even has the distributer cover. It sits on a base that looks just like Kenn's base and/or the base that the stealth ram sits on. I wish this thing was more than just folklore.

Jim85IROC

iTrader: (2)

tunedport.com got back to me. $2700 for the complete setup.

I emailed back to find out how much they get for just the plenum and base.

Jim85IROC

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Slow89Iroc-Z

Is there any posibility that it will be compatible with the Vortec heads bolt pattern??? Throw an LT4 HOT cam in the mix and that would be a truely affordable kick *** setup!!!!!

Beefy89

The guy at the speed shop here told me $265 for the manifold and $155 for the feul rail.

Jim85IROC

iTrader: (2)

you have a name/website/phone number for this shop? The best price I've seen elsewhere so far is $306 for the manifold and about $155 for the rails.

Has your speed shop said anything about availability?

dctrouant1995

would this work: doing the weiand stealth ram air intake manifold, then buyin the weiand 6-71 street supercharger kit and dart performance 72 cc heads. Put the super charger in, then puttin the top part of the stealth ram air intake with a holley 58 mm throttle body on it and then the heads on ZZ4 350 GM Performance crate engine

TheMuskr

you dug up a 9 year old thread....

probably want to start your own.