hey all, i run a 2002 blazer xtreme w/ the 4.3 EFI vortec. im interested in adding some boost but im not gonna lie, i dont have an in depth knowledge of this engine or how to mount a turbo.

im interested in a rear mount style like the sts turbo kit. would buying their universal kit work well? also, i know il need BOV's, but in terms of the fuel system/intake, what will i need? ive heard the marine intake is the way to go, but unless somebody can give me a good step by step on installing that, idk if i wanna do that.

if somebody can provide a list of things i need to buy/install to have a decent setup, id be very grateful as i have been getting many contradicting statements and ideas by reading what i have searched.

-Kevin.

Ugh, if your going to do it just buy a v8, i went down this route and it was a huge waste of money. Theres a only one person i know of who was successful and he now has a blown engine.

a v8 swap is not gonna happen on this car. im not looking to dominate the drag circuit lol just lookin to make a bit more power. this is my only form of transportation so a full engine swap would leave me wheel-less for a while.
i know somebody here has done a remote mount on their v6 which has turned out well, i was aiming for something similar to his, but using the sts kit instead of a custom fab

yes that is 02vortech and his engine is blown.

If you do a remount setup, theres alot of fabrications, room for oil lines to leak, and forget about driving in the rain or dirty roads.

if you dont have an in-depth knowledge of the 4.3 and installing/setting up a turbo is this something you really wanna tackle youself? you also said your only looking for a bit more power and adding a turbo will get you close to v8 type numbers, itll make alot more sense in the long run to do a v8 swap if you wanna a good amount of power. if you really are just looking for a "bit" more hp throw on a CAI, exhaust, and get a custom tune then call it a day.

if you dont have an in-depth knowledge of the 4.3 and installing/setting up a turbo is this something you really wanna tackle youself? you also said your only looking for a bit more power and adding a turbo will get you close to v8 type numbers, itll make alot more sense in the long run to do a v8 swap if you wanna a good amount of power. if you really are just looking for a "bit" more hp throw on a CAI, exhaust, and get a custom tune then call it a day.

He speaks the truth and in theory a v8 swap would be less work.

You could always look for a powerdyne or a vortec superchager.

you should NEVER add a turbo to a car that didnt start that way and use it as a daily. it will be unrelaiable and very expensive. you would be looking at a full head rebuild with new cams, lifter/rockers, valves, the engine will need new gaskets, upgraded exhaust system, all the oil lines and fabrication, if you add a intercooler than all that too, not to even mention the fuel system add ons and mods - then you will need a custom tune at a shop when your done so it wont totally blow up 10 feet down the road. 9 times out of 10 - your looking at a minimal $5,000 just for a basic setup.

just look for an article called 3/4 350 - it tells how to get 300 wheel horse from a 4.3L all motor and even tells what part number, price, and were to get it. here is the link!
http://www.hotrod.com/techarticles/engine/113_0208_chevy_43l_262ci_v6_engine_build/dyno_results.html

and for the record, turbo's and Superchargers are an extreme mod and you will def want to know the ins and outs of both forced induction as well as the motor your attaching it to before you go for that type of project. but i hope this helps.

How many miles does your truck have? It may have too many on it to handle any type of major work such as a turbo, supercharger, etc. Just go with a swap if you really want some power.

well first off if you rebuilt a 4.3 i DOUBT it would cost anything over 1,500 bucks. Second my turbo kit which i was piecing together costed me around 1,200 bucks. For pipe intercooler every. Third how is he going to need an upgraded exhaust system. The turbo is driven from exhaust, He wouldn't have to change anything. A little boost on a 4.3 is fine the motors themselves are pretty strong and can take a little boost. Its when you start abusing it and boosting 16psi or something is when your going to start blowing things up.

So I guess all my SS buddies running maggies and sts's on our trucks are going to all blow up.

well first off if you rebuilt a 4.3 i DOUBT it would cost anything over 1,500 bucks. Second my turbo kit which i was piecing together costed me around 1,200 bucks. For pipe intercooler every. Third how is he going to need an upgraded exhaust system. The turbo is driven from exhaust, He wouldn't have to change anything. A little boost on a 4.3 is fine the motors themselves are pretty strong and can take a little boost. Its when you start abusing it and boosting 16psi or something is when your going to start blowing things up.

So I guess all my SS buddies running maggies and sts's on our trucks are going to all blow up.

You could easily buy V8 for less than $2,700...

To me, a V8 is just less stuff to break.

Ugh, if your going to do it just buy a v8, i went down this route and it was a huge waste of money. Theres a only one person i know of who was successful and he now has a blown engine.

PVT Pablo-did you read this post? it was already pointed out that a v8 swap would be more cost effective.

PVT Pablo-did you read this post? it was already pointed out that a v8 swap would be more cost effective.

Its ok he was just reassuring that my prior statement.

you should NEVER add a turbo to a car that didnt start that way and use it as a daily. it will be unrelaiable and very expensive.

I enjoy this comment. :D I had a good laugh because my buddy has an 03 cavalier that he turbo'd. It's his daily driver and he's never had a problem with it being unreliable.

I guess no one really notices the Typhoon manifold swap with stock engine and Marine intake.
It's a cheap way to go and works great. We run it on our 98 4dr Jimmy. It has over 160,000mi on the stock engine NEVER rebuilt! IT"S STOCK! We've put over 25,000mi
on it turbocharged now.
It's my wifes's daily driver. And I'll bet with it in 4wd and a 8lb boost launch it'll run in the 13's at over 100mph in the 1/4. She's spanked many Mustangs with out a boost launch in 2wd.
It'd be perfect for your truck.
HPTuners is what is used to tune it.
Link to how to do it: http://www.fullthrottlev6.com/forums/showthread.php?t=50198

I like the LS1's .. but you'd still have far less doing a Typhoon exhaust mnfld swap on your stock engine.

Anyone who nukes their engine does not have a good tune or is greedy with boost with poor tune. Period. Or they "Think" they are a tuner...

I turbo'd my 89Nissan Maxima.. Let see... It had 181,000mi on it and now has 245,000. It runs 13.40@108mph. Get's 25mpg in town and 31mpg on highway.
Two Camaro's I turbo'd.. 97&98. 3.8L The 98 went from 15.80@78mph to 12.73@108mph. Never had the valve cover off it. STOCK engine,trans,rear. Turbo setup/injectors/tune.

So... YES it is possible to do on a budget... with dependabilty and power.
~Scott

Above post... QFT!!

Just about all gm v6's can handle ~5-8psi easily without heavy fueling modifications. I've done alot of 2nd gen z24 (2.8 & 3.1L) with turbos. I've helped to swap a 3.4 into one and turbo'd that. I'm working on a 3.5L with a friend, yes it will be turbo'd.

All we ever did was add an inline fuel pump on top of the stock unit. For the 3400 we had to step up the injectors as well. All these swaps and turbos have been running for a couple years now, and they pull just as hard as day one. The old iron head 2.8L that we built is a monster though... 12psi daily and yet to catch a hiccup in 3 years...

alright guys... i have an 86 s-10 blazer that im lookin into droppin in an a 4.3 and then adding a turbo but before droppin in the engine i am going to modify it with heads, valves, cam, crank etc. what do ya recommend a cmfi like the typhoon or a tbi like most 93 and below have...

I find this thread and most the turbo threads on this site very interesting because people always sayif you do it your going to have problems blah blah blah. Well i have turboed a few cars (kinda what i do for a living) and i have never had any come back with any problems and about 80% are turbo kits i built from scratch. Looking at my truck i dont see any problem in truboing it at all. as long as you dont get boost happy (which i beleive has already been said) you should be ok. The one thing i do see being an issue is fuel delivery but with a booster pump you can probally do 12psi with a decent tune no problem and if you wanna do more i beleive UR50SLO has already presented a very good solution for the fuel delivery. There is an entire website on how to build a turbo kit for our trucks that is more than what you need. If your gonna do it then do it. If not then do the V8 swap but i think for what you wanna do the turbo is better for a DD because you still retain some fuel economy (depending on your tune). But thats just my 2 cents