jak2908

im planning on turboing my 305 tbi, would it be a good idea to go to a 454 tbi? or can i get around with using my 305 one? im kinda new to this idea that i have! thanks

Saabster

iTrader: (2)

Interesting. Do you have a plan on how to field the huge amount of the torque you'll make?

The injectors at least, but I think even they would struggle to feed a blown SBC. That is, the answer to this vastly depends on the amount of power you plan to make.

The throttle maybe, but certainly not the injectors.

Clearly. You have much to read young padawon, good luck.

Ronny

iTrader: (1)

You will need to swap out ECU as well.

Saabster

iTrader: (2)

LOL, he's got a lot to change!

Ronny

iTrader: (1)

Add a WB02 sensor with controller.....

jak2908

i dont plan to run much boost...just somethin to play with..if i like the idea ill expand with it...the only thing is is that i dont know what turbo to use?

Saabster

iTrader: (2)

define not much

I don't recommend forced induction for playing, but hey, it's your car.

You have to answer question 1 before you can even attempt to intelligently answer this.

Ronny

iTrader: (1)

jump over to "power adder". Post your Q there. There are others runnin turbo-blowers.
Procharger has an application for TBI.

I H8 WWD

iTrader: (5)

I looked to no avail. They have a centrifugal for the lt1 showing on a 88-92?
http://www.procharger.com/GM/gm_auto.shtml

Also I heard from a few guys on here one being Fast305? which had a 420hp/tq 305tbi in which he says the 305 tbi is not at all friendly with forced induction. You'll be doing lots and lots of tuning, because of the tbi setup and it not being as accurate as fuel injection like the tpi.

BluFBdy

iTrader: (1)

running the fuel map for the boost would be a PITA because youre running 2 cone injectors feeding 8 cylinders, whereas TPI you have 1 injector for each cyliner, with the TBI being blown youd have to have the ecm kick out extra fuel to the cylinders to accomodate the boost but again, with toilet bowl injection you run into fueling problems, we have retarded smart carberueators(oxymoron i know but its true) we have all the disadvantages of a carb, i.e fuel puddling.....

youd be better off finding an alternative intake, run an aftermarket setup or a TPI if you want to run a turbo and for that matter you probably wanna run a S/C, not because i dont believe we shouldnt turbo thirdgens but for the past few years ive been around its like the guys with turbos dont want to give up their secrets.....

Ronny

iTrader: (1)

Blower can be resold later or moved to another car. Turbo has the exhaust mod expense unless you are a DIY and can weld. N02 is most cost effective.
EBL-ECU supports all three power adder options. I am adding N02 in spring. "Hopefully" NOS can help me calc jet(1) as I run 19.5 lbs FP with 80 lbs injs.

BluFBdy

iTrader: (1)

technically as long as you stick with the SBC block youre fine with a turbo but still its a pain to get your hands on some manifolds

jak2908

no manifolds needed..going rear mount...and id like to run maybe 6-8 pounds???

BluFBdy

iTrader: (1)

excellent idea, let me know how you succeed where others failed, you have nowhere to put them without something going wrong (ground clearance.....) and with the lag from a rear mount system you might as well throw a vtec motor under the hood lol

I H8 WWD

iTrader: (5)

Yes, a year or so ago I wanted to do this (doing research). I called STS and well, clearance will be a HUGE problem. It CAN be done, but just look at longtube setups on these cars which don't require 1 more additional pipe from the rear to the front. Only routing area would be the outer rails in which no SFC's for you.

Your best bet is an engine mounted turbo. Or something like what Wynjammer has for us...but turbo.
http://www.tbi-superchargers.com/TBI...o_305_TBI.html