Turbocharging a non-SyTy 4.3
- Thread starter thehemi
- Start date
Re: Turbocharging a non-SyTy 4.3
I've been wondering that as well...except I have the Vortec CPI engine... the one that came in the SoGt and the 94 Blazers....I think 195hp or so...
I've been wondering that as well...except I have the Vortec CPI engine... the one that came in the SoGt and the 94 Blazers....I think 195hp or so...
silverblaz
Member
Re: Turbocharging a non-SyTy 4.3
i have done it have one in my blazer works great nolan is helping me tune it so far so good
let me rephrase that i also swaped a syty harness and computer
i have done it have one in my blazer works great nolan is helping me tune it so far so good
let me rephrase that i also swaped a syty harness and computer
Last edited:
clone 94
New member
Re: Turbocharging a non-SyTy 4.3
tuning the TBI can be tricky. only having two injectors is very limiting. my truck started as a supercharged 94 TBI and i ended up swapping to a 2114 MPFI setup when i went turbo and it was the best mod i ever did
if your power goals are moddest, the TBI will work
if your goals are a little more wild, like 300+whp, i would ditch the TBI
BTW a stock down pipe wont work in a 2wd truck
tuning the TBI can be tricky. only having two injectors is very limiting. my truck started as a supercharged 94 TBI and i ended up swapping to a 2114 MPFI setup when i went turbo and it was the best mod i ever did
if your power goals are moddest, the TBI will work
if your goals are a little more wild, like 300+whp, i would ditch the TBI
BTW a stock down pipe wont work in a 2wd truck
turbodig
Active member
Re: Turbocharging a non-SyTy 4.3
Well, looking at this from a practical standpoint....
Intake, used - $450 (average going rate)
Fuel rail,used - $100
FPR - $100
Injectors - $350
Wiring harness,used - $150
Exhaust manifolds/ x-over -$300
Custom fuel line - $200 (by the time you get all the fittings, etc.
MAP,knock, o2,temp sensors, etc - $300
Fuel pump (In-tank) $100
Fuel pump wiring - $100
ECM -$100
Chip adapter board -$35
Burner and PROM - $100
You're right at around $2500. Now, there will be people who say "I can get x, cheaper..." and you probably can.
But, this doesn't include -
Turbo
Exhaust plumbing
Intercooler + related
All the time you'll spend piecing this all together, figuring out problems,grafting into your dash, gauges etc.
Paying a tuner, if you don't/can't want to do it yourself.
And, when it's all said and done, your TBI motor isn't really set up for boost. The Sy motors that are built for it don't last particularly long. Not to mention, the transmission you have won't hold up, the sy spec trans wasn't even up to the task.
The second list would cost you at least that $3500 additional, if not more. Again, scroungers can find better deals, but a lot of time you end up with parts that you can't use.
The reality of the SyTy market now is such that for another 1-2k, you could have purchased a SyTy.
There have been many that have been down the conversion road before, and they'll pretty much all tell you the same thing- It would have been waaaay cheaper to buy one.
Well, looking at this from a practical standpoint....
Intake, used - $450 (average going rate)
Fuel rail,used - $100
FPR - $100
Injectors - $350
Wiring harness,used - $150
Exhaust manifolds/ x-over -$300
Custom fuel line - $200 (by the time you get all the fittings, etc.
MAP,knock, o2,temp sensors, etc - $300
Fuel pump (In-tank) $100
Fuel pump wiring - $100
ECM -$100
Chip adapter board -$35
Burner and PROM - $100
You're right at around $2500. Now, there will be people who say "I can get x, cheaper..." and you probably can.
But, this doesn't include -
Turbo
Exhaust plumbing
Intercooler + related
All the time you'll spend piecing this all together, figuring out problems,grafting into your dash, gauges etc.
Paying a tuner, if you don't/can't want to do it yourself.
And, when it's all said and done, your TBI motor isn't really set up for boost. The Sy motors that are built for it don't last particularly long. Not to mention, the transmission you have won't hold up, the sy spec trans wasn't even up to the task.
The second list would cost you at least that $3500 additional, if not more. Again, scroungers can find better deals, but a lot of time you end up with parts that you can't use.
The reality of the SyTy market now is such that for another 1-2k, you could have purchased a SyTy.
There have been many that have been down the conversion road before, and they'll pretty much all tell you the same thing- It would have been waaaay cheaper to buy one.