Does anyone know anything about the new edelbrock pro-flow XT tunnel ram-esque intake? I just saw it in their new for '08 catalogue (it induced a semi if I'm brutally honest) but it's the first I've heard of it

first i've seen it and it looks good

basically another stealth ram like manifold building power in th 1500-6500 rpm range

http://www.edelbrock.com/automotive_...e/npb_2008.pdf

catalog in there

seems to be for vortec/e-tec heads or pre 86 sbc heads at the moment... but you can drill the bolt holes for 87up style i'm sure

I like you can use LSx style throttle bodies.
And I like they put it out so quick without having to hype it up so much *cough bbk*

ls1 tb is nice but looks like that unit will not beable to swap onto our cars without the wiring harness/ecm kit that edelbrock uses. Thats probly gonna run the package upwards of 2000 dollars or more which aint bad but not always a great choice when you can tune the stealth ram for less using stock ECMs

Atleast its better looking than those other MPFI setups that look like carb setups. my next EFI (not the one i'm doing now) engine may be using a converted victor single plane.

I like how it seems to have a lower profile than the stealthram.. some firebird/corvette guys will like that :P
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oh my bad
I thought it was the red intake on the first page of the pdf file

This thing available for sale yet? Pricing?

I'd swap my miniram out for one. Monoblade TB is where it's at.

-- Joe

doesnt look like the throttle body would be much fun attaching a tv cable to...let along getting the proper geometry.

I wouldn't mind doing it just for the ease of getting a huge cheap stock TB and the round piping for cold air or forced induction setups.

Just got off the phone with Edelbrock. The suggested retail is $3748.95, and it is 9 1/2 inches high.

For the whole deal including aftermarket EFI

How much for just the intake and rails

That is interesting. I'd like to know flow #s on it. 9.5" tall... I'll have to measure my HSR this weekend so I can have a comparision in my head. If it flows more than the HSR, and it has an adaptable LSx style TB to our throttle cables etc, that would be a very intreguing setup.

Talked with Edelbrock guy at the Good Guys event in OC two weeks ago and he said the system was still being tested and that none had shipped.

with a $3700 price tag, i'd be more tempted to use this for $2000 less...

http://www.tpiparts.net/inc/sdetail/3128

not sure about wiring but for saving $2K right off the top, i'll deal with some wiring issues.

Be careful about that "$1700 less"....

The Edelbrock package is a COMPLETE EFI conversion. It includes a distributor, wiring, ECM, injectors, pump, and some other goodies, that that RamJet setup doesn't. Of course not everybody needs all of that; but that comparison is not apples to apples.

It'll be interesting to see what they'll charge for just the intake casting, and whatever it takes to install it, like fuel rails; if it's competitive with the HSR for example.

It seems to be like Edelbrock are gonna want to make the price point of the manifold alone competitive so they can pinch some of Holleys stealth ram customers

Just got off the phone with the Edelbrock tech (?) line with questions about the XT.

Said the XT won’t ship till next month.

Said it will only support 450 to 500 horsepower. It will certainly support my horsepower goals but still seems rather limited.

I asked if it was sequential fire and the tech said it was batch fire. I pointed out that on
http://www.edelbrock.com/automotive_new/mc/efi/pf-xt_intro.shtml
it said it was sequential. Tech then said it was sequential.

I asked how he would compare it to a ramjet and was told “ aftermarket is always better.” What a joke.

The system only has one narrowband O2 sensor. I asked him about tuning with only one sensor on a dual exhaust car. He said, “you only need one sensor and that you don’t need to know what the other cylinder bank is doing.” If that is true then it seems to me like their new ECM must be rather simplistic. Don’t you need to know what both cylinder banks are doing to tune better? If not why does my LT-4 have two O2 sensors?

He also said no pricing was available. I told him I had seen it priced.
http://www.truckaddons.com/Catalog/subpages/EdelbrockFuelInjection_1.asp

So what are your opinions thus far on this system?
http://www.edelbrock.com/automotive_...xt_intro.shtml

Well when they give out the part number for just the intake and rails, color me interested.

There you go.

http://www.edelbrock.com/automotive_...xt_chevy.shtml

Intake alone runs about $400-$450 then add LSx tb and fuel rails

Wonder how much fuel rails and and FPR run..

Wonder what the height specs are too.

I'd def sell my miniram and 58MM throttle body and buy one.

-- Joe

Prices are listed at Jegs and Summit now. Should be available by end of May. Low $400s for manifold and $130 for fuel rails.

HSR price range..not bad..its nice to see another option available

So how do you adapt a LSx tb to our TPI style electronics and cables?


that be a nice setup for a 411 lsx pcm swap, the obd-II conversion plus LSx tb's come in 78 to 105mm so that will cover all your hp goals

I think the best part about thise is that unless you want to run a stock or modified TPI throttlebody on a HSR, you have to get a performance TB like a bbk.

If you ran this PFXT you could get a nice stock TB from an LSx even from a truck to use. Just cable bracket (like the one they have for this PFXT) and harness adapters for the IAC and TPS would be an issue.

If you call Howell Engine Developments Bill Howell will make them for you probably cheap too, or you could just change your cable ends with the new weatherpack (which Bill Howell can get too).

LS1 is almost direct fit. I ran both an LS1 and a vortec TB on my single plane intake back in 2004. Other than changing the plugs for the TPS and I think IAC, the signals and voltage is all the same.

I'm kinda psyched about this intake. I wonder how tall it is though. If it's as high as a HSR it won't fit in a Corvette.

-- Joe

That's a very close fit for the waterneck, nice looking piece though, regardless....

if its just a matter of getting LS1 style connectors and sensors and splicing into the stock TPI harness, thats a sweet deal! I have no problem doin that

Do you think the manifold has enough plenum volume to feed the runners? How long are the runners? They look about 8 inches long. It looks like it would push the power band to 6000 to 6500 range. I have only seen the right side in the pictures. Does the left side have brackets for the throttle cables. Would you have to run a tpi throttle cable. I don't think the cable would be long enough if it crosses over to the left side. I guess you could use a tac module from a vette and electronic throttle body.

Actually they make adaptor harnesses already made up or as said you can splice.

It appears to have more plenum and more runner than the TPIS miniram or singleplane, so I would say yes, it is enough.

I wonder if it has enough metal around the ports to be port matched to a 1206 gasket. If so, that's the intake i'll be running!

also from the pic, it looks to be alittle taller than miniram but much shorter than HSR

Runner lenghts do appear to be longer than miniram and near similar to HSR. This intake should match HSR in performance and support up to 6500rpms on some motors

"I'd def sell my miniram and 58MM throttle body and buy one. "

-- Joe[/QUOTE]

I've been running a MR for the last 7 years. Over the winter I installed a new solid roller cam in my 406. Without a doubt, the combo of good cam, heads and MiniRam is an outstanding combination!

I wouldn't trade it for any other intake on the market.

One man's opinion.

Looks like a great intake for the price and if shorter then the HSR would fit nice in any TA or corvette, they should sell a lot of them. Kind of wonder why they didn't make it for 87+ also as well? If I ever build up a stronger block that can take some rev's I'll probably get one myself

I too have been very interested in this intake. Looks like it would be great on our cars, and the LSx throttle body is a win win! I dont know about anyone else, but I have a mini ram currently on my car and for the past three months I have been trying to figure out an intake pop and loss of power. After breaking down and paying 500+ dollars at a local shop to have it looked at, it appears the mini ram did not mate with the heads and was causing a major vacuum leak. I have heard others horror stories as well with this problem, and I am disgusted that I paid over 1400$ for my intake and it is a worthless piece of crap! I will definately be contacting TPIS about this, and After seriously considering carbed (I know I shouldn't have even thought about it) I will probably be getting the edelbrock set up. If anyone finds anything new about it, or what it takes to get it to work on a TPI motor, post it up. I'm very interested to hear about it.

I am pretty interested as well.. Seems a little too cheap to be true, Though. Does anybody know what it would take to get it to fit on an 87-up motor?

just gotta angle the bolt holes. use a dremel tool and cut them open so the bolts line up. then you can either use JBweld or quiksteel epoxy putty to fill the excess or leave as is and use a washer under the bolt to take up any slack

Stealth ram intakes are drilled like that, for both style heads. So all you need to do is modify the bolt hole angle for that pro flo to fit



AND to add, there is a company that makes a cut down HSR for C4 vettes that will work nicely for our cars as well if you have Irocz hood and poly motor mounts, as it doesnt clear 100% or if you have a TA/firebird etc. its 850 bucks and has the center section cutout more like an airgap manifold. Its pretty


I think that intake will support 6000 rpms and 11 second time slips. My HSR is doing very well on my 383 so far so i'd expect similar performance out of that ProFlo once on the right combination

850 sounds good.... Do you remember which company makes the cut-down version? As long as it dosent interfere with a 2" cowl induction hood, I'm interested!!! Thanks!!

Anyone here running one of these yet?

Im looking at getting into the EFI game and this seems like a decent unit (sequential, complete kit and good price)

yeah id really like to know if anyone is running this as well, and if the tps and iac is just a matter of splicing a few wires with new connectors

I am planning to get one soon. I already have the money set back and the 90mm throttle body. Last time I checked Summit Racing's website the intake and rails wouldn't be available until September 14th. It just got pushed back as it used to say August 30th. Hopefully it will be availabe soon.

Just thought I'd post up here, there a thread with some new info over on CorvetteForum.

http://forums.corvetteforum.com/show....php?t=2127378

so has anyone tried this one im really intrested since i need to dump my 305. was wondering if that cable issue has been solved or not more for the tv cable. really intrested to see whos tried it and all.

This might seem like a foolish observation, but does it even look like a small cap distributor will fit back there. The XT kit uses a small diameter mallory distributor.

what would you have to do to run this on a tbi engine?

FYI, I was told this should support 600hp and you need a 90* waterneck to make it fit with the 90mm TB that expands to over 4 inches in diameter as it goes out. What is 90mm good for though? Probably overkill for most. No?

Also, Corvette and I believe the Formula's are going to have problems with the hood, but as soon as I have funds I think I have a solution. Some guy on CF has made an adapter to get an LS1 TB to work, I'm gonna give it a try with another angle... once I get some funds...