Thank you Corvettenorway!! One ? in my experience w/ injector flow/pressure, I still think I'll need to go to the 80lb/hr injectors to get enough FLOW psi alone I don't think will do it? Or am I wrong? my VAST exprecince in injector-flow/pressure is on my Turbo Buick, that car [MANY,MANY!!!] modifications to it I found past a certain point I HAD to go to larger inj's [28lb stock to now 42-1/2lb] + an increase in fp.to get the correct a/f/ratio. I'm fairly well educated on tbi injectors, HOWEVER not to the level I DO have on the SFI system's. Any and all help WILL be greatly appreciated, on the tbi system. Thank You

 

Excellent, I like this better than the DCS little tool for $65 which they don't have in stock. Ordered!!!

 

Hey Lance, our cars will not require the PSI as your Buick will because of the TBI.

 

if you get one let us know how it works for you .i like it .

 

Al I do understand that, someone just said to go to that thread you commented on, and that would fix it, well thats just a fp regulator and mines already adjustable the stockers just ain't flow n enuff, I THINK.........w/ 80lb/hr injectors I can probably set the fp at or around 16-17psi w/ the 80lbers and be good!!!!gotta get mo' flow! That post however is a good one I think w/that one you won't need the special tool supplied by DCS. Those guy's stillthough! Thanks AL!! keep on N!!!!!BTW did I tell ya you got a pristine 82?????

 

I THINK?? the flow vs pressure applies to both tbi system's and SFI system........don't it? Or am I wrong on this??????hot rodded alot a cars HOWEVER before the T/Regal always carbed cars and now the Vette. So I'm still learning a lil bit on the tbi system, I would MUCH rather someone tell me something I know opposed to saying nothing!!!!!!!!!
Thanks Al!

 

I'm in the same boat with you, learning everyday which is a good thing.

 

Thanks Lance.

 

The flow came from the fuel pump !! The pressure to injectors from the regulator !!! If the pump flow say "100" and the engine uses "50" 50 goes back to the fuel tank !! To hi pressure can blow the gasket in the regulator !!the flow can not !!

 

READ THIS !!http://www.dynamicefi.com/TBI_Fueling.php

 

Thanks corvettenorway, I do understand that, thats why I THINK? I need bigger injectors [on my combination] to get mo' flow Some of your info I knew HOWEVER not ALL I VERY much appreciate ALL of your in-put and help Thank you again!! 55 an still learning!!![my engine,355cid, 440/454 cam, fully ported heads, 1.94/1.60 valves, fully PORTED by me Crossfire intake [WHEW!!] won't b porting another one of those!!], LW forged pistons, low friction rings, LW forged rods, stock crank, will have very soon 51mm tb's and I THINK? to maximize my engine 80lbs/hr injectors. Also will install 1/2" spacers under the tb's. 85 fuel pump that I THINK? will only need about 15-18psi max. w/ the 80lbers. Any in-put on this will be appreciated! I can't say thanks enuff!

 

 

With out that info [thread] you posted I was on the right track, however that TOOK ALL the guess work out of it!! yep I need 80lb/hr injectors. Thanks Again! you....... Lance

 

can you tell me the thing with the spacer under the tb ?? with 51 mm tb you can use dobble gasket under the injector tower for better power !!! race on !!!!!!!!!!!!!!!!!!

 

pics??

 

 

http://forums.corvetteforum.com/memb...922-134768.jpg

 

bigger hole need better spreding of fuel

 

ok now I see, was confused on that one. Thanks for the picture. I removed my vanes in the upper lid, is that going to matter??

 

no!!