Formulation

Hey all, I'm always trying to come up with helpful ideas and items of interest for us boosted LSx owners. I have sourcing through Siemen Deka to build very large High Impedance Injectors, as many of you know 50# injectors are the biggest the stock computer can handle in terms of what is available on the market right now for injectors sizing- nobody makes any bigger ones that are High Imp. Any bigger and you have to go to Low Imp. and run some sort of Imp. convertor or and aftermarket system, both are on the expensive and complicated side.

If we get a group of 10 or more people we can get injectors built to whatever size within reason we want - all 80 or more must be the same size, so let's figure out some sizing that you guys think would meet your high power setup's needs.

I'm thinking somewhere in the 72-83# range rated at 38psi so on an LS1 it would be even larger, or enough to support around 1,000 hp.

The turn around time is about 1 month and pricing should be around $500 or possibly less, let me know what you think!

parish8

iTrader: (6)

is this posiable? i always assumed that the 50lb limit had something to do with larger injectors requiring more current, i really don't know much about it but it seems like if they could be made someone would have made them. what are the draw backs to a large high impedance injector vs a low impedance injector besides the required driver?

if they can be made i am sure they would sell.

Cool28

iTrader: (2)

I would love to see it happen but I not in the market for new injectors yet.

Black LS1 T/A

Do I have a choice? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
I'd think 83#'ers would be the next size to make it worthwhile., though since I am at 42's, just about ANY odd size bigger than 50's is better than what I have.

Questions I'd have are:

Who would buld them?
Would they compare in quality and ease of tuning to, say, the SVO's?
Since they are custom, what happens if one quits? Would they have built a few spares to replace a defective injector found in the batch during some operation in the customer's vehicle? (The car has been parked enough, lately.)
I can tell you I could not contribute money to ANYTHING until after Christmas. My wife is upset with me now. (Where did all your money go?

smokinHawk

iTrader: (48)

IF idle quality is good.

im interested in some biggies like the 83's, if your going to go big, why not get the biggest.

SS00Blue

I'm sure Harlan will set this straight, but I'm going to crawl out onto the theoretical ledge here:

I think that the reason to go to low impedance injectors is to cut down on precious rise time. The peak and hold moves the plunger (pintle) in and out of the bore more quickly, like this: |-------+ vs. high impedance saturation type which takes time to move in and out of the bore, like this: /-------\.

The time saved here is significant enough to allow more fuel per injector pulse.

SC-

OK Professor Matt, please correct my error, and teach us the rest. Thanks. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

JZ 97 SS 1500

iTrader: (2)

If these injectors will idle well, and aren't to $$, then sign me up for 83's

Jose

Injector Dude

I have been told that with the current design, the injector/pintle can not react quick enough for anything above a 55# injector.

smokinHawk

iTrader: (48)

can they give some kind of warrenty?
dont want these to go bad and us get screwed.

Formulation

I'll have to check, do any injectors come with a warranty?

Formulation

OK, They gave me bad info, I just checked with the source and indeed 55#@42.5psi is the largest possible and will be ready in 2 weeks, that is still a good sized injector at LS1 fuel pressures, probably enough for around 750-800 hp(perfect world calculations say 875hp), at our pressures they come close to a 75# injector, let me know if you guys are still interested, if we get 10 sets the price is $425 plus shipping

<small>[ December 16, 2002, 12:55 PM: Message edited by: Formulation ]</small>

Lost & Found2

ttt

Black LS1 T/A

So... do these things exist?

Pro Stock John

iTrader: (34)

My sources tell me that the high imped. Siemen 55's have been released.

I am gonna go with low imped. 83's so I will have to figure out a plan to make all the parts work.

JZ 97 SS 1500

iTrader: (2)

Yes 55's are out. Pro Stock, go with a FAST system, it will take care of any injector you want to run.

Jose

Black LS1 T/A

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Formulation:
<strong> OK, They gave me bad info, I just checked with the source and indeed 55#@42.5psi is the largest possible and will be ready in 2 weeks, that is still a good sized injector at LS1 fuel pressures, probably enough for around 750-800 hp(perfect world calculations say 875hp), at our pressures they come close to a 75# injector, let me know if you guys are still interested, if we get 10 sets the price is $425 plus shipping </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If the price is $425, you've got a sale! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

redaddiction

iTrader: (12)

ok so where can i get some i'm interested shoot me an email

marc

Formulation'98

Sorry, the price has changed since this was originally posted e-mail me at indacalinc@attbi.com for availability and pricing, Thanks Dave

Black LS1 T/A

OK... I ordered a set. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Looking to get them next week.

redaddiction

iTrader: (12)

hey i want some info on these injectors can someone send me some info on where to get these

tia

marc