Gauging interest for aftermarket spider>MPFI conversion manifold

[BewstAdd1ct]

as discussed toward the end of the 1st page of this thread:

http://www.fullsizechevy.com/forums/...-question.html

if they made a IM for a vortec head, that would accomodate 8 low priced injectors at the ports, externally, they would sell a bunch. in fact, i bet if we got 20 people saying that theyd sign up for it, i bet we could get edelbrock to make it. theyve already got the CAD/CNC/whatever files for the vortec setup, as well as several MPFI manifolds. shouldnt cost much at all, really.

all we'd need at that point to make it REALLY user friendly is a wiring adapter that goes from the CSFI connector to 8 injectors.

if they set it up to use existing fuel rails (like maybe LT1/TPI or something) we could all go to the camaro graveyard and get cheap rail/injectors. or use production/aftermarket stuff. id bet the entire conversion could be done for right around $500ish.

Basically this would be a vortec SCFI to MPFI (external injector)conversion package. This would allow us to choose a bigger injector, as well as change injectors easier/one at a time, and would end the dripping/plugged poppet issue as well as the leaking regulator issue.

The kit should include an intake manifold that bolts to the vortec heads and has a provision for external injectors, and either uses the plastic upper intake with OEM mounting, or if that isnt possible, then a complete one piece manifold that would accomodate the stock throttle body, sensors, and EVAP/PCV/EGR. It would also include fuel rails, external FPR, injectors, a SCFI electrical connector with a harness to go to each injector, as well as anything else required.

would be sold as a package, possibly with injector choice.

one alternative would also be to have the injector harness with blunt ends, rather than the SCFI connector, and they would be soldered/spliced into the factory harness. this would cut down on cost a little.

it'll be up to edelbrock, or whoever ends up making this, the final price, but im guesstimating $400-$600

im not sure how many committed buyers theyll want for an initial production run, but its usually in the 20-30 range. maybe less because they already have the specs for just about everything.

post up if youre interested! there isnt really an injector upgrade, AFAIK for the 5.7/5.0L engines, to this is beneficial for us, as well as the manufacturer. if we get enough interest, we can get this made with no problem.


If a mod feels its worthy, can i get this stickied?

[atenisplyr]

I'm in.....Give me more horses!!!!!

[tahoe99]

Originally Posted by BewstAdd1ct

it'll be up to edelbrock, or whoever ends up making this, the final price, but im guesstimating $400-$600

Just the injectors are going to run you 300.00
They will have to outsource a custom harness for plug and play for the fuel injectors @ 200. Intake @ 200 . Fuel rail for the limited production they will run on these intakes another 200.00
I am sure Im pricing these low.
They may have all the tooling for the vortec intake, but they will still need to design an intake which will accept the stock TB and all emissions. Plus they will have to do research on what injectors will work with the stock ECU.
Since its Edelbrock add 500 on top of whats already there for their research and development.

Hate to say it but if there was interest from Edelbrock to do something like this they would have done it about 10 years ago.

[mgrotel]

this would be awesome

[mgrotel]

the demand for marine intakes would be almost zero

[atenisplyr]

I don't really care how much it runs. I would pay 1100 to not deal with the BS of putting a marine intake together.

[stockchevy1983]

well if this would ever happen, im in

[Pre-StrokerC150]

I'm in if it's reasonable. The marine intake would be nice, but I don't have the time to mess with all of the fab work involved.

[05BlackCrew]

I would be in, it would be nice to have a plug and play system.

[stockchevy1983]

yea just simple bolt on, i dont wanna pay more money to get anything done to it.

[GreaseDog]

how about just an adapter harness to run the injectors? then run a manifold like this: http://store.summitracing.com/partde...5&autoview=sku

simple adapter plate would be pretty much all that would be needed to put the throttle body on it, right? plumbing egr might be interesting if you had to go that route.

[atenisplyr]

Originally Posted by GreaseDog

how about just an adapter harness to run the injectors? then run a manifold like this: http://store.summitracing.com/partde...5&autoview=sku

simple adapter plate would be pretty much all that would be needed to put the throttle body on it, right? plumbing egr might be interesting if you had to go that route.

New TB-$4-500.
Fuel Rails-$270.
Gaskets-$20.
Manifold-$430.

That's about $1300.00 and doesn't include new injectors or wiring. That's using all Holley parts. Kinda expensive.

Edelbrock has a kit to convert TBI to MPFI. Seems to me all they would have to do is make a manifold for our motors. They already have the guts designed.

I don't mind using a marine setup. Like others, I don't have the time/energy to fab one up. I have a 7 month old son. I will be some time before I could do that. Would be great if someone would just make some complete marine setups.

[BewstAdd1ct]

Originally Posted by tahoe99

Just the injectors are going to run you 300.00
They will have to outsource a custom harness for plug and play for the fuel injectors @ 200. Intake @ 200 . Fuel rail for the limited production they will run on these intakes another 200.00
I am sure Im pricing these low.

actually, youre a little high. the injectors are right around $300, and the manifold about $200. they use existing SBC MPFI injector configurations, which means they can use preexisting fuel rails. theres no research for injector type. theres pretty much two injectors in the MPFI world... either its a peak and hold, or a saturated duty cycle. high or low resistance. ive priced a rail set at about $75. this is for individual purchase of parts. put it in a kit and knock something off the price.

They may have all the tooling for the vortec intake, but they will still need to design an intake which will accept the stock TB and all emissions.

yes. this is called research and development. its how aftermarket companies make money. without it, we'd all have 255BHP.

Since its Edelbrock add 500 on top of whats already there for their research and development.

500 divided by an initial production run of 20 units, for example, is $25 each.

Hate to say it but if there was interest from Edelbrock to do something like this they would have done it about 10 years ago.

AFAICT, there wasnt a demand for this 10 years ago.


This is a thread about who would buy this if it wasnt too far away from the price range. those that are interested, please post up, we''ll generate some interest and let the manufacturer price the kit.

even if you wanted to be cheap about it, you could just buy the manifold and head to the junkyard and find some TPI/LT1 fuel injectors, rail, etc...

then you'd be looking at $250-350 or so.

[atenisplyr]

I think they would have to modify this setup a little bit.

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

What would it take for this setup to work on our trucks?

[4 Speed Dave]

Please look at this manifold in the link below. It has been done and is a very clean set-up, ERG, purge, MAP sensor. Just copy this.

http://www.pacificp.com/forum/viewtopic.php?t=6247

[mgrotel]

Originally Posted by 4 Speed Dave

Please look at this manifold in the link below. It has been done and is a very clean set-up, ERG, purge, MAP sensor. Just copy this.

http://www.pacificp.com/forum/viewtopic.php?t=6247

i like that setup, i wish our truck would have come like that from the factory

[Pre-StrokerC150]

That looks good if you could buy it already done. That is a GMPP Vortec TBI intake that he had converted to MPFI. I wonder what that costs?

[atenisplyr]

Originally Posted by 4 Speed Dave

Please look at this manifold in the link below. It has been done and is a very clean set-up, ERG, purge, MAP sensor. Just copy this.

http://www.pacificp.com/forum/viewtopic.php?t=6247

We should get this over to Edelbrock and tell them to make it.

[96c15004.3]

Is it possible if there is enough interest for a 4.3 version.

[Aloicious]

Originally Posted by 4 Speed Dave

Please look at this manifold in the link below. It has been done and is a very clean set-up, ERG, purge, MAP sensor. Just copy this.

http://www.pacificp.com/forum/viewtopic.php?t=6247

thats my manifold. I'm putting it on next week along with a zz4 cam. can't wait. I'll post pics and stuff when she's on.

EDIT: This thread in posts #11 and #13 has pictures of the manifold fully assembled and on that HT383, it also has some pictures of how it was made. here:
http://www.fullsizechevy.com/forums/...ake-gains.html

I actually purchased it from 350SS on the PPE forums and he was the one who got it all around. the fabrication of the GMPP intake to MPFI, and to accept the vortec TB was all done by Kevin Thompson at hot rod solutions (http://www.hotrodsolutions.net/)
it was done very well and clean. you could do pretty much the same thing for any manifold that works on vortec heads, however, the GMPP TBI manifold for vortec heads is the only one I've seen that retains the EGR, and my manifold was also modified to retain all EVAP stuff as well.