Looking to go Blow Though Turbo?

[sho_shane]

Well iv never turboed anything but I really thought it would be cool to have a LWB 86 Chevy turboed with a large single. Im not looking to make a ton of power. ITs a stock motor but a little extra and the looks I get when I pop my hood would be nice.

Im thinging these turbo headers: http://www.xs-power.com/gm-turbo-manifolds-3.htm cus they will bolt on and give me a place for the turbo to sit but im not sure if they will fit and im not really sure on anything else.

Thought maybe finding a dodge diesel turbo, and finding a good used NPR intercooler, and a good used Blow though carb. Then pulling out my mig and going to town on some pipe to knock that out of the way.

Any help would be great, WHat do yall think?:patriot:

[Justin_Inc]

Well iv never turboed anything but I really thought it would be cool to have a LWB 86 Chevy turboed with a large single. Im not looking to make a ton of power. ITs a stock motor but a little extra and the looks I get when I pop my hood would be nice.

Im thinging these turbo headers: http://www.xs-power.com/gm-turbo-manifolds-3.htm cus they will bolt on and give me a place for the turbo to sit but im not sure if they will fit and im not really sure on anything else.

Thought maybe finding a dodge diesel turbo, and finding a good used NPR intercooler, and a good used Blow though carb. Then pulling out my mig and going to town on some pipe to knock that out of the way.

Any help would be great, WHat do yall think?:patriot:

It sounds like a nifty idea, however you are forgetting (or atleast have not mentioned fuel system). a stock fuel pump (mechanical or electric) is not going to support and forced induction.

Those headers i doubt will work, just by looking @ the driver side header it looks like it exits almost center engine and the cross-over pipe looks like it will run right under the oil pan instead of around the rear.

[OneHung4.3]

It
Those headers i doubt will work, just by looking @ the driver side header it looks like it exits almost center engine and the cross-over pipe looks like it will run right under the oil pan instead of around the rear.

Yeah, the cross over would go right under the oil pan.
I'de be weary of those turbo headers from sites such as that or the ones sold on ebay. They maybe made of the same materials as the good name brand ones but it comes down to the welding.
Most of the ones that are sold on ebay( or sites such as XMracing and junk ) have very thin welding across the flange and the collector.
Personaly I would have a set made from a respectable shop or atleast from some one whos experianced in turbo's and fabrication of them.
I would almost say go twin turbo if this is your first time messing with them. It's easier no need to figure out where to put the cross over pipe. You can use the stock exhaust manifolds ( if they are still in good condition ) flip them upside down moving the drivers side to the passenger and vice versa. Also the V8 would probly spool up two t3/t4's quicker then a single big turbo.

I used 2 pairs of those turbo headers I bought from ebay on two diffrent project cars. First set, the welds broke free in two diffrent places after 2 passes. On the other car after 50 miles of driving it under normal road conditions, started to leak really bad around the flange and warped. Just be careful when looking for turbo headers. LOTS of cheapies out there that look good but are for sure crap.

[sho_shane]

Ok thank you very much for the info and ill scatch those headers. Im not a very good fabber so is there a good place out there to but headers that will go in my truck and bolt on turbos?

Let me tell yall what im wanting. I want some form of FI that I can still hop on the hyway and run for hours, Still hook up my trailer and run all day but that I can take to the track and run and have a good time.

I dont care about being the fastest I just want to be diffrent. I dont care if its a Superchager OR Turbo altho a Supercharger might come closer to bolting on and that is probly where my skill lvl is.

Please let me know what yall think, Im just looking for alittle more power and to be a little diffrent.

[OneHung4.3]

I guess it all depends on how much you want to spend for that extra power. Doing a turbo kit would start stacking up some coin really quick. You have to consider all the pieces that are needed including fueling it. You'll need turbo headers, Turbo(s) if you go two. Intercooler,piping, bov,Brackets, clamps, etc. upgraded fuel system such as blow through carb ( which are not cheap )higher flow fuel pump,and so fourth, Plus once you have it all on you will need to get it tuned to run properly. Half the power made is all in the way its tuned so thats somthing you dont want to go cheap on.

Superchargers are alays a good way to go as they are made for just about any Chevy v8. Require little to no mods and can be had for a decent price if you shop around on craigslist.com or ebay. People are always selling good used superchargers on there. Again it will need some tuning and depending on the conidtion of the engine it may need to be freshen up a bit to handle boost.

If the engine is in poor condition and you are dead set on keeping the truck and want some kind of FI( Im assume you mean fuel injection )
Swap out the engine for a later model engine/tranny combo.
or have the current one rebuilt. You can build a nice small block checy for towing and everyday driving without needing to add boost but I agree it would be cool to have some boost chirping away.

Hit up google, do some research and read some of the stuff in there and get an idea what you are in for. It helps alot.

[sho_shane]

Now with a Supercharger would I have to upgrade my fuel system or would a big carb fuel it? also can I use a reg carb or do i have to have one build for boost?

[OneHung4.3]

First of all what engine is in it? I assume a 350 that came with it? and whats the condition of it?

[sho_shane]

The motor in teh truck is new. Maybe 6 months old. And maybe 3000 miles on it.

I think I want to go with a Whiple. They are the cheapest iv seen in looking today and I read good things about them.

What model should I be looking at, Im looking for it to bolt on, I would like to hear it so everyone knows its there, and I dont want to spend a arm and leg on it. :)

[OneHung4.3]

Weiand 6-71 street superchargers are pretty nice and can be had for about 2800.00 at jegs. They are about the same as a whipple also and might be a little cheaper. I wouldn't see the need of going higher then a 6-71 s the engine is stock though.

[sho_shane]

I looked at that supercharger and it bigger then I want. I want a single carbed charger.

Im on a buget so ill be keeping my eye open for a good used one.

[Hatfieco]

Weiand 6-71 street superchargers are pretty nice and can be had for about 2800.00 at jegs. They are about the same as a whipple also and might be a little cheaper. I wouldn't see the need of going higher then a 6-71 s the engine is stock though.

6-71 on a stock motor? Thats an awful lot of charger for a stocker. I'd go 4-71 if your looking for relatively low boost and low maintainance. Just curious op whats your static compression ratio as well as dynamic? Theres alot that goes into to forced induction. Not just a bolt up and go kinda thing. Your ignition is most likely going to have to be upgraded to allow for boost retard as well as other things. Not to mention fuel pump, larger carbs, cooling system theres alot to address before ya get to rippin. Not tryin to discourage just don't want ya to get balls deep and then find out its not that easy lol.

[sho_shane]

6-71 on a stock motor? Thats an awful lot of charger for a stocker. I'd go 4-71 if your looking for relatively low boost and low maintainance. Just curious op whats your static compression ratio as well as dynamic? Theres alot that goes into to forced induction. Not just a bolt up and go kinda thing. Your ignition is most likely going to have to be upgraded to allow for boost retard as well as other things. Not to mention fuel pump, larger carbs, cooling system theres alot to address before ya get to rippin. Not tryin to discourage just don't want ya to get balls deep and then find out its not that easy lol.

No I understand and I thank you for your support.

The more I think about it the more I feel I might be jumping in over my head. I might try a good intake, headers, carb and a better cam and see if that puts me where I want to be on performance. :)

[Hatfieco]

And then supercharge it! :D

[OneHung4.3]

Good idea Sho-, A mild built 350 is pretty much easy to build and not that much on the green. Plus it makes for a good street engine. I'de still keep in mind a good supercharger for later down the road...cause the power bug will bite and you'll give in to it : ) good luck...haha yes then supercharger it!!

PS I didn't even know they made a 4-71....

[Hatfieco]

Good idea Sho-, A mild built 350 is pretty much easy to build and not that much on the green. Plus it makes for a good street engine. I'de still keep in mind a good supercharger for later down the road...cause the power bug will bite and you'll give in to it : ) good luck...haha yes then supercharger it!!

PS I didn't even know they made a 4-71....

They make an 8-71 as well. Those chargers have been around forever I have a 6-71 sitting on top of a an old detroit in an old terex dozer. http://www.dyersblowers.com/ all kinds of goodies on that site :yumyum:

[Hotwheelz]

They make an 8-71 as well. Those chargers have been around forever I have a 6-71 sitting on top of a an old detroit in an old terex dozer. http://www.dyersblowers.com/ all kinds of goodies on that site :yumyum:

man those are some really well made looking blowers.

[OneHung4.3]

8-71? Hmm...Well that shows how much I know about the old superchargers haha. Use to be a turbo junkie now I just have turbo junk lol.

[OneHung4.3]

Now if they would only make one that fit onto an 02 4.3. : )

[Hotwheelz]

you can modify a kit for a s10. I used a powerdyne blower on my 97 sonoma. ran it @ 9psi. it was a fun truck.

[Hatfieco]

man those are some really well made looking blowers.

Yeah those guys have been around for a long time, well my old man used to use them on his race cars lol. Hes in his 70s now so that was probably 30 or so years ago.

[brutal]

i didnt know a 4-71 blower was ever used in automotive world.

a 6-71 and 8-71 yes, i see them all the time, and for being solid aluminum, there fuggin heavy. there the same thing used on detriots, in fact, they have been around alot longer than yall may think. from the 40s or 50s iirc

[Hatfieco]

Early 60s late 50s they are old. I got my 6-71 out of our old terex cat and im getting ready to send it in to those guys, might find its way under my hood... Just gotta figure out a way to machine a baseplate to allow 8 injectors as i dont like fuel dumping in the top of the charger. The weiand blowers are still the baddest ones around. All the blown cars out at woodburn on nostalgia weekend still run either a 6-71 or 8-71.

[OneHung4.3]

you can modify a kit for a s10. I used a powerdyne blower on my 97 sonoma. ran it @ 9psi. it was a fun truck.

Yeah, I was reading a Hot Rod Mag article on a 4.3 build up using a vortech kit for a vortec 350 on a 4.3. Said the only thing that had to be modified was the elbow to the intake. Other then that it was pretty much straight forward bolt on. Then again a vortech kit is in the ups of 2500 bucks. I might as well just toss out the 4.3 in the silvy and throw in a 5.3. Atleast then my options for aftermarket parts would sky rocket compared to the 4.3. I'm still considering all directions to go with. Just depends on how much I can get for all this turbo junk sitting in the garage and its alot.

I like the look of roots type blowers over the others such as powerdyne or vortec. Although they may not be as good as them.

[OneHung4.3]

The weiands are by far my favorite type blower. Pretty freakin sick looking sitting on top of a built engine. I'm currently rebuilding a 1969 olds 350
that I am considering sitting a weiand on top of. Going to find its way into a 1970 cutlass when it's done. Just got to figure out if the greens going to the olds or the chevy lol