[DeTomaso] Weber's or IR Stack EFI for high HP applications

[Kirby Schrader]

I find this thread very interesting…

The EFI story is a no brainer. I use 55mm throttle bodies on both the Pantera and the GT40.

But to be different, I shall be using a Jim Ingelese modified Weber 48IDA setup on the new race car engine.
Vintage legal and Tom Upton says the new engine will do more than 650HP with a 4 bbl.
Vintage legal all iron, exhaust port plates, etc.

And the Webers are making everyone call me a ‘glutton for punishment’.

Should be interesting.

FWIW,
Kirby



> On Dec 12, 2014, at 15:32, Boyd Casey <boyd411 at gmail.com> wrote:
> 
>   Julian,
>   I spoke to Jim Ingelese and he told be he builds Weber setups
>   guaranteed to run well, he doesn't build them to meet HP goals.
>   My A-3 heads have intake valves that are 2.19" and according to Dan
>   JonesA  there is no way to get the air flow from 48MM Weber's. He
>   suggested Ipsco's 55mm throttle bodies. Kelly Coffield fabricates a
>   complete system using Ipsco's throttle bodies which are set up to place
>   injectors directly into the intake manifold. The whole set up is low
>   profile and can be installed under the stock screen without cutting the
>   rear deck lid.
>   Boyd
> 
>   On Sat, Dec 6, 2014 at 6:43 PM, Julian Kift
>   <[1]julian_kift at hotmail.com> wrote:
> 
>   I also always heard that Webers run out of flow at around 500HP; When I
>   approached Jim Inglese about a set of Webers he was adamant that was
>   complete BS, quoting numerous race cars running well north of 600HP
>   using 48IDA Weber carbsA A with no issuesA e.g. Lola T70's. He will
>   design a set specific to your engine whichA he guarantees will be
>   virtually bolt on with minimal further tuning required.A
>   Be aware that Jim is no longer associated with Inglese Induction
>   Systems that Comp Cams now owns and has restarted his own business
>   [2]http://www.jiminglese.com/
>   I'd be interested to know what cam specs you have for use with the IR
>   on that 408 stroker.
>   Julian
>   Date: Sat, 6 Dec 2014 16:38:13 -0500
>   From: [3]boyd411 at gmail.com
>   To: [4]detomaso at poca.com
>   Subject: [DeTomaso] Weber's or IR Stack EFI for high HP applications
> I was asking Dan Jones about  running Weber's on the engine he and Dave
> McClain are   putting together for me. Dave is building and Dan doing the
> simulation and design.  It's a 408 stroker A-3heads fully ported  (not back
> from the porter yet ) so they have not been bench flowed yet. I really like
> the looks and sound of a stack set up and since I am running 180 degree
> headers the sound with stacks the sound can't be beat.  Since my engine is
> expected to be producing north of 635 HP at 6500 rpm Dan thought that
> Weber's wouldn't supply enough fuel to reach the maximum HP potential. Does
> anyone have experience or opinions on a set up that would  allow for the
> optimum low , mid range and high end  HP  without  losing any throttle
> response or HP at any of the key points.
> 
> On another point who makes the best Chassis stabilization kit ( rigidity
> kit) for use on a 1971 L.  I already have Billet rear risers , CV joints (
> porsche 930) poly bushings from Dennis Quella ( along with his Koni set up
> and coil overs, Sphere ball end sway bars Front a-arms modified by johnny
> woods modified for maximum adjustable castor, Brembo 4 piston calipers from
> a Porsche 911 turbo, Coleman custom made rotors with center directional
> vanes and gas vents and custom billet hats. Dual CNC master cylinders with
> a balance bar long throw clutch master with SS sleeve and  Anodized Slave
> cylinder with SS sleeve. So I want to get the best possible  Rigidity kit
> for the full chassis Front hood,rear engine compartment, under chassis.
> Also any other recommendation which could be made to help deal with the
> high horsepower and torque.
> 
>   _______________________________________________ Detomaso Forum Managed
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> 
> References
> 
>   1. mailto:julian_kift at hotmail.com
>   2. http://www.jiminglese.com/
>   3. mailto:boyd411 at gmail.com
>   4. mailto:detomaso at poca.com
>   5. mailto:DeTomaso at poca.com
>   6. http://poca.com/mailman/listinfo/detomaso_poca.com
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