hey all this is my first post here . i need some help

im building a 434 twin turbo need some answers im from australia and its a little hard to get it tuned here in Aus as not many people have software to tune the standard ecu .

here is what I have

I brought a Dart block . bored it to 4.155
CP pistons flats . 6cc valve cut outs .
25 thou down the bore ill run around 80 thou gaskets
70cc chamber on the heads .
gapless rings
scat rods
scat steel 4 inch crank
bla bla bla

I brought the TPI set up from Arkansile polishing . complete with ecu etc .

the box which the ecu cam in was from a place called larrys or somthing I got the ecu and loom for it of arkansile polishing issac sorted it all out for me .

but being in AUS i cant really get anyone to tune it with boost now as I really want to keep the the standard ecu if i can and have it modifyed to suit .

I have 2 T78 turbos 70 comp T4 flanged rears are .82 and i have not brought a cam yet unsure really what to put in as I want a smooth idel with in reason . I was thinking around 240 at 50 deg with around 108 to wash a little comp out as the engine is up around 10.1 comp im only wanting to put in say 8 pounds there abouts .

any help on ecu and what I should do or is there anything else i need to run boost ? what do i need . the computer is the one with the yellow plug for the auto but he has by passed the auto as I have a manualised Power glide .

any help would be grate

also I want to get it running for engineers reports with out the turbo set up just run it asperated who can sell me a memcal to suit 434 cub with a 252@ 50 cam which I have in it at the moment .

 

u would be better off getting rid of the tpi and use a efi converted carb intake. go with either big stuff, acel dfi, or fast for the ecu.

 

I'd 2nd the Go with a Vic. Jr convered to EFI , esp on a 434. Thats alot of cubes and turbo for a tpi style setup.

As for stock ecu style tuning. Look into http://www.code59.org/index.php

 

I have to agree, sucks that you prob spend good coin on the TPI etup but it is gonna choke that motor

Jay

 

I have a complete 1050 pro systems blow through system but its not aout using arfter market things I need to get this car fully engineered which meens to have a 5 way gas analiser test and I have to meet a hydrocarbons test so i need to make it work . I also have a full arfter market injection set up I have on another chev 5ltr with a 4 barrel throttle body . if it was not for wanting to get it all 100 percent legal I would run arftermarket . but I need to try and find a way to make it work .

 

I just looked at that site code59.0rg and there is a heap of things that are way past my knowledge Im a race car chassis fabricator not a ECM guru im not really into the electronics side of this so I need some help .

 

talk to orr89rocz he runs a tt 401 i believe it might be able to lead you in the right direction there

 

I don't know what the rest of this discussion has to do with your question, but I guess the first question is what ECM did your setup come with. If it's the aussie stuff, you might have an 808 ecm which is similar to our '165 but is programmed with SD (map) code, which a few of us have had luck with scaling to work with a 2 or 3 bar map. If it has one of the setups that we're more familiar with over here, there are other answers to that, but it matters what you've got and what you're willing to work with.

worst case, you could go with an fmu or even a N2O fuel solenoid and a nozzle...