Just don't use teeth, OK! :nono: :jester

 

all the posts iv read about the stealth ram were not good alot of initial problems now on the 4 bbl conversion went right on and made big power with no playing with anything i personally think the sp conversion intake will work out better for people :cheers:

 

I have a converted single plane and I'm considering converting a tunnel ram I have laying around . How much does the Holley Stealth Ram cost?

 

It's less than $500 with the adjustable regulator and rails. It will not fit under the stock hood, about 5/8" where the TB bolts on and about 3/4"+ on the front of my 58mm BBK. It does make a lot of power, it is not thick enough, unwelded, to cut to 1206 gaskets. I'm running one on a 383, and it's nasty. 315s are no match for it, the low end is there. I have a bunch of pics of it, I will email if someone wants to look, or I'll send if someone wants to post

I've got a super victor going to jeb when I can get a little time to box it and ship it. I built a plenum like John Meanys vette and it's going to jeb also. I think he's gonna do some flow #s on it to see how it compares.

 

The Stealthram requires a Distributor change too!?!?
I knew it didnt fit with the stock plenum it comes with, but didn't know you can'tuse the stock hei distributor with it.. :eek:

 

That's true about the distributor. It's a very easy conversion tho'. You can bolt the coil onto the side of the plenum, and there are bunches of different cars you can get the wiring from, and I haven't found any differences in the coils, they'll all fire with the MSD without failure. You have to use the small distributor with whatever plenum you use. For that matter, with any tunnel ram base that I've ever used or know of.

If you don't want to go that way, get a LT1 intake, cut the EGR off the back and the stock distributor will fit. I know. More room than the TPI has. Does require welding to close off the egr passages in the runners and plenum. You can do away with the PCV on the side, easy fix and gives a lot more room for the bolts to fit. Do away with half the vac fittings also.

 

:withstupid:

 

No, you can't reuse your current coil. Since you have to go to the small cap distributor from something like an F-Body which requires an external coil you have to dump another $60 or so on a new coil.

 

Duh, I thought it was pretty clear when I said that you could bolt the coil on the side of the plenum, I didn't say that you could reuse your stock hei coil from your big distributor and bolt it to the side of the plenum. Reading further, I said that you could pick up the wiring from several different cars and that you could use many different coils. Already eliminating the large cap hei, it would be pretty obvious to MOST of us that you couldn't use an internal ignition coil with an external ignition coil distributor.

If you are not intelligent enough to know that this is not possible, you probably shouldn't attempt to build an adapter plug to plug the SMALL DISTRIBUTOR wiring harness to the CORVETTE WIRING harness, much less replace a stock TPI INTAKE MANIFOLD with a HOLLEY STEALTH MANIFOLD, EFI or CARBUREATED.

Johnny - not trying to drive my post count up / not butt U MEing people are
stupid - Evans

Merry Christmas - HoHoHo

 

When saying "your coil" most around here are going to assume the one already in the HEI cap.

 

Scorp, you need to re read my post.

My 2nd post says

Oh well, must be a full moon.

 

Hey all,
I didn't want to get into this can of worms and have been resisting posting on this one, however I just wanted to give a small update. Some of you saw me install the HSTR on my 89 using GV's modified box. I ran it for a short while and things happened that caused me to take that motor down. Midstream I decided to do something completely different and I abandoned the HSTR project. Economically speaking, things have taken a turn for the worse for me, I might be losing my job/source of income. (I don't think the economy is recovering like they say it is)
Anyways, I had planned to flowbench the whole set-up to provide some kind of results. I had called a couple of places and flow bench testing labor rates around here in CA are around $70.00 bux an hor. The first 2 or 3 places I called said it would take 3-4 hours to test all 8 intake tracts. So again, being that funds are low, I couldn't afford to spend that kind of money.
If I had it, well then ok, no prob. Here is the point that BV was expressing:
If I spend this money on research, and find that the modified box actually performs well, then GV will be the one to make the profit and I would be out the testing money. But that's politics and beside the technical points.
So anyways, I got onto http://www.superflow.com and searched their service providers here in CA. I emailed all the ones that have flow benches and explained what I wanted to do. Most of them have responded to me and a couple of them said they could do all 8 tracts in an hour or slightly more. That's not bad if it's true. I don't mind spending that. I am getting alittle closer to testing. I do need money for my new project and am gonna be selling my HSTR set-up. There must be about a grand tied up in this HSTR. I could sure use that! I figure test results will help determine value on the thing one way or another. I'll be slowly working toward testing. sorry for the delays I know this is of some interest to some of you.

 

I just finished the install using Grumpy's plenum. I promised earlier that I would post results (1/4mi) and I will when I have them. I can send photo's to anyone who wishes or I could post if someone tells me how to do it!
The install is not for the novice. There are things that are needed to be addressed prior to the install.
Here are a few that come to mind:

*Not a weekend project. Plan for a full 7 days so your not disappointed or left stranded.
*need 87-92 GM truck or Trans Am smaller distributor.
*Fuel lines need to be modified. Plan on a few trips to the auto / hardware store.
*Practice tube bending and double flaring skills for fuel lines.
*various fittings for the vacuum lines.
*need to modify wiring harness for new style distributor or buy adapter from holley.
*need a different thermostat housing.
*need a different upper radiator hose.
*pick location for mounting external coil.
*need a modified plenum because Holley's will change the appearance (crack it) of your stock hood if you slam it shut!
*modify throttle body linkage because it hits the fuel rail when you use grumpy's plenum.
* if you use Grumpy's plenum I recommend smoothing the entrance because the throttlebody sits lower than the bottom and its not a smooth transition.
*If you use Grumpy's plenum you must (absolutely do this) pop off the internal slag cold welds so they dont fall into your engine and cause bad things to happen! I am talking about the area around the tubes for the 4 hold down bolts on the top of the plenum.
* The bottom of the tubes aren't welded and they compress when you bolt it to the base manifold. I applied RTV on the top and bottom of the holes to prevent vacuum leaks. I also applied it to the gasket between the base and the plenum. I recommend this.

*last but not least: You will need a custom chip to modify the fuel curve and timing characteristics. Stock won't cut it.
**The felpro intake manifold gasket comes very close to riding on the edge on one side of the holley base manifold in the back. Check the fit and use alot of RTV or you will have oil leaks and possibly coolant leaks.

Alot of work but I feel well worth the effort! Not many folks with a Vette have this set up!
Hope this helps,
John

 

God I hope so. You just maanged to make the superram sound like a piece of cake even to those who think it is hell.

 

The Super Ram is probably easier to install the first time. I'm probably gonna get flack for this one but I'm being honest here. What I mean by that is there is less modifications that have to be done initially with the Super Ram than the Stealth Ram. Simply put the S.R. is made specifically for a tpi bolt on. The Stealth is not! Now after it's all done it's another story.
I can remove my intake very very quickly now. Just as fast a dual plane carb manifold. I can remove & replace all 8 injectors in 5 minutes without removing 1 manifold gasket!
This install is not impossible it just takes experience. Preparation is the key to success on this mod! Make a list and check it twice, three, maybe even four times before you begin!
I'm very happy with it so far. It looks friggin awesome when you pop the hood and take a peek. I always wanted something different and now I've got it!
JOhn

 

I forgot to mention the cost. Don't be fooled by the cheap cost of the Stealth Ram advertised by Holley. Here's why:

Stealth Ram with afpr & fuel rails:$500.00, Vette Plenum:$320.00, small distributor: $100.00-$250.00 depending on used or new, external coil: $50.00, fuel fittings and vacuum lines: $100.00, Felpro intake gaskets & tube of RTV: $20.00, New thermostat, housing & upper radiator hose: $40.00.
1 gal of coolant & oil & filter change: $25.00, distributor harness adapter from Holley: $50.00.
Expect it to cost somewhere between $1200-$1350 if you do the labor yourself!
Doesn't look as economical as it did initially does it?
Oh well performance costs $ and I'm glad it's over with!
Or is it? I forgot to mention the custom chip. This is a must. How much $ would that take to get ot right if one didn't have his own programmer? $500.00 is probably a fair price for all the required tuning. Maybe more!
Ah what the heck it's only money! Go for it!

John

 

I'm getting my single plane flowed as we speak, but I'm gonna sell it and convert my tunnel ram! :thumbs: The reason for using the single plane was to use the 4V throttle body but since it won't fit with a decent air cleaner I'll sell it and convert the ram. :thumbs:

 

Well here's the finished product!
John