Trevor @ Texas Speed & Perf.

iTrader: (3)

I received an interesting call yesterday from an ex-Ford racer by the name of Tom ***. He said that he's working on an aluminum intake manifold for the LS1 that will accept a carburetor. I asked him if he is going to make one that will clear the cowl on the f-bodies, and he said maybe. Basically, I would need to get him some dimensions to see if it will work or not. He also said that it will be very similar in design to the current Bowtie intake for the SBC's, just designed to fit the LS1. I don't have any pricing info on it yet; he's supposed to call me back next week. Needless to say, this is a hardcore piece that is meant for an all-out racing application. It's going to be geared towards the higher RPM racers that aren't looking for mid-range torque.

Assuming that the pricing is decent and the intake works well, who would have a genuine interest in something like this? I told him I would guage interest this week so I would have a general head count when he called me back next week. So, who would be interested? No tire-kickers please. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

ls1290

iTrader: (20)

One question, why a carburetor <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

Fenris Ulf

Have it converted over to EFI and fit under the cowl, and you just might sell a handful. Else I wouldn't even bother.

RyanJ

i think LG/Tom ***'s best bet is to make it a low rise single plane style (a la SB2...but lower) with bungs for injectors that can easily be drilled. I still think you have to trim the cowl...but putting a 1500cfm kinsler TB would make up for that i think. Tell him to make a proto and get louis to make some rails...then test it on louis's car since he has a big cam and all....and have him test a carb on it too.

thats the only way the public would want to try one.

Ryan

i bet Douberly would test it....or Freese.

kewlbrz

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by ls1290:
<strong>One question, why a carburetor <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">For all out high rpm drag racing. A carb, or carbs, is the only way to go.

Jay 95WS6

kwl you are incorrect on the carb vs fuel injection idea, efi will out perform carbs anyday the reason being that you can atomize the fuel better from and injector vs a carb

Jay

badls1

iTrader: (1)

how would you control the timming once you get rid of the computer? like the fireing order?

kewlbrz

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">[/QUOTE]How is that? I know that many pro mod cars are fuel injected running 160lb+ injectors. Aren't Funny cars blown, fuel injected, alcohol motors?[/QB]</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Doesnt pro stock run carbs? Is it by pro stock rules or choice?

sampson

iTrader: (1)

QB][/QUOTE]Doesnt pro stock run carbs? Is it by pro stock rules or choice?[/QB][/QUOTE]

Pro stock runs carbs because it is a solid setup and the little bit of a change means they lose the race. I do not know the if it is a rule or not, but pro stock guys hate change. Top Fuel and Funny cars run mechanical FI, other solid setup.

sampson

iTrader: (1)

sorry, my friends computer sucks <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

HP-GURU

COmputer can be modded or replaced to control timing and/or read sensor inputs.

The carb would be desireable for high rpm drag racing.

There aren't many N/A 800rwhp 400CI LS1's out there.

With a carb it would be less cost prohibited.

W8N2SQZ

iTrader: (6)

Trevor,
I have a friend with a 95 Z28 with a 400 inch motor. He runs a single plan intake with Demon 850 on it. It fit without any mods done to the cowl, but he cut a half circle in it anyway for air flow. I think you would sell them easy. Steal block, stock crank, LS6 heads and a BIG solid roller <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> . 550 horse 346 in my opinion easy.

Just my two cents.
Glenn

BurnOut

iTrader: (1)

The big difference between Pro Stock and TF/FC is N/A vs. forced induction.

Think about it- if your goal is to get as much air and fuel into the cylinders as possible, would you rather set a pair of HUGE carbs on top of that 14-71 blower and install 1/2" jets so they could flow enough fuel, (and take a chance on fuel puddling in the blower/intake) or would you rather just inject it right into the cylinder??

Generally speaking, until you make a custom designed intake for an injected car, it's just not going to run as hard as a similarly prepared carbed car. Even a lot of the aftermarket manifolds for popular injected cars (LT1, TPI, EFI Mustangs, etc...) mimic the design of the factory intake pretty closely; the same factory intake that had to be designed with factors such as intake noise, fuel economy, good low-speed response, etc... in mind. Sure, there are some variations on the theme (like the staggering of ports on the Ford GT40 lower intake), but the basic dimensions are esentially the same.

Think about trying to make a high performance intake for a carbed SBC without significantly departing from the factory low rise dual plane design... crazy, right?? Same thing with factory-similar EFI intakes.

Anyhow, I am a BIG fan of adapting a carb intake to injection... you get the advantages of the better airflow of a carb intake and the precision of injection.

HP-GURU

I don't think the single plane should be low rise, it should follow the Vic Jr/Super Vic type of profile. A cowl hood will probably be warranted.

Keep in mind the Super Vic intake ported on ford
will do about 400CFM or allow you to have potential for 800-850HP.

There could be an intake for LS1/LS6 style heads
and another for the C5R heads. With this intake
the LS1 can totally replace SBC for street rodders
, carb'ed drag vehicles.

Jay 95WS6

in 99 WJ (Warren Johnson) took 1 of his 500" pro stock motors and put it in an AA olds Pro Stocker with DFI and it went 6.85 with the very same combo he was going 7.15 with at the time so it works just NHRA won't allow it maybe '03-04 they will.

Jay

Whistler

iTrader: (46)

If you carbed an LS1, how would you control spark?

kewlbrz

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Whistler:
<strong>If you carbed an LS1, how would you control spark?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You could probably use a fabbed crank trigger reluctor or magnetic type wheel. I think summitracing, etc sells these sort of things.

Jay Johnson

iTrader: (16)

Trevor, I am interested in testing the setup on my
car, and I'm local.

What motor does he want to test with?

Given the setup of my car, I might be a top candidate
for testing the carb setup.

I would be in this for the R&D, as well, I'm sure
there would be some mutual benefit for Tom and
myself.

Send me some email with more info, if you want to
move forward with this.

Jay Johnson

WNA B LS1

Couldn't you use the F.A.S.T system for all the computer controlled stuff? I have read great reviews of it. Just my .02, if it is worth that.

<small>[ August 07, 2002, 08:00 PM: Message edited by: WNA B LS1 ]</small>

Matt98SS

i have been waiting on this for a while. as long as there is a true solution for the ignition setup I would be in, unless its a nascar 6500-9000 RPM intake, thats a little too much RPM for me