Just turbo'd my 300 six - Page 13

BigJake34452 · #**181** (**permalink**) 08-10-2009, 11:27 AM

i didnt have time to read all 12 pages but i did the first few and those of you wondering about doing a carb setup, we have a turbo 300 i dont have the specs of the turbo off hand but we used a holley 850 DP with 2 50cc accelerator pumps to accommodate for 18 psi (gotta use 116 octane) in a draw through set up. o and BTW the motor has factory crank and rods, custom diamond pistons, and some headwork with a clifford single plane 4 bbl intake.

turbo bricklayer · #**182** (**permalink**) 08-20-2009, 10:24 PM

the hardest part of the procedure was fabbing the exhaust man with weld els up to the inlet flange of the turbo and then a bracket to support it on top , kind of hard to get good photos of it. defin doable though. the boost referenced fmu gets more fuel to it as long as u dont get carried away with bp. a modification to the crankcase vent system [pcv] and some devious plumbing to the intercooler and back. ah yes thers also the oil supply line and return line[5/8 in or bigger there or she will smoke trust me on that one.] I still am not done yet as I have explained earlier but just love to drive this truck now. I think my milage got confused with o.p. as i never checked mine. If u drive with a lite foot its not much dif than before .ready for phase 2

turbo bricklayer · #**183** (**permalink**) 08-20-2009, 10:28 PM

btw big jake, your setup sounds interesting

Towmanjbo · #**184** (**permalink**) 08-21-2009, 02:32 PM

Hey TB nice hearing from you!

turbo bricklayer · #**185** (**permalink**) 08-21-2009, 09:49 PM

thank you, likewise. so when are u boltin one on?

Towmanjbo · #**186** (**permalink**) 08-22-2009, 02:12 AM

Soon as I can but I gotta rebuild the rear axle first, did the front in the spring. The F250 got smacked up in the winter and I had to get that fixed that put a dent in my wallet so the 150 had to take the back burner.

Iversen-fords · #**187** (**permalink**) 08-25-2009, 04:10 PM

i was wondering why not run a rear mounted turbo like a STS system? that way you dont have to deal with that manifold and you get your boost kind of cooled when running it back. The only thing i would worry about is if you do offroading with it. Its just a thought.

turbo bricklayer · #**188** (**permalink**) 08-26-2009, 08:44 PM

not familiar with that . Being that heat helps to drive a turbo do you thing it would build enough boost . also oil lines would be a problem.

Iversen-fords · #**189** (**permalink**) 08-28-2009, 02:07 AM

go to ststurbo.com They should tell you what you want. I've seen a couple of T.V programs run this system and liked it. They said they had very little turbo lag. I seen a picture of how they did the oil line and it looked like they had a electric pump there that was plumed into the system up front. It just something to consider than using a tradition turbo system.

turbo bricklayer · #**190** (**permalink**) 09-07-2009, 02:23 PM

i checked out the site, its an idea although i dont know how they can claim better fuel mileage, more air more fuel is the rule. i have a general distrust of manufacturers marketing claims but its an idea that might work in some applications

570cobra96svt · #**191** (**permalink**) 10-01-2009, 01:19 AM

HEY YALL'
Im new to this site, but not new to messing with cars and trucks, i love fabrication stuff, especially turbo systems,lol
ive had a f150, 86' 300-6 in the past, and its time for another.
i just bought a 93' 150,2wd shortbed manual, with no rust, and the only reason i bought it was because ive been looking for a truck to turbo, and i think its perfect. I just happened to stumble on this thread while looking for turbo info about the truck, since plan to build my own system like many of you guys did.

So im picking up the truck monday, after the guy gets it inspected for me, since that was part of the deal.
I have a 96' mustang cobra DOHC, An just finished rear mount turboing that, but im waiting on a wideband, so i can tune it, since the cobras got weak pistons in them.
So i bought a no-name T-70 t3, ar70, ar84 a while back, and had it on the car, but but another t-70, this time a MP, which is on the car now being used.

So i got the extra turbo layin around, i wanted to put it on something, thats why i bought the truck.
I read every page of tihs thread and im lovin it, and it is so much easier by the way explained on tuning and stuff than my cobra, which is EECV and takes some time to tune rite.so im gonna try a something a lil' dif, by doing a mid mount turbo, down under the cab, like what someone jsut mentioned, simalar to a STS system, but no where near the cost, since i only spent about $800, on my rear mount sytem on my cobra, not including the stand alone and fuel supply stuff, compared to $6000. for a kit from a company.

So my plan is, to take the 2wd, manual 300-6 shortbed, and make it a nice lil' lighning clone. street truck, and do a mid midmount setup. And as for the tuning, im gonna go with TWEECER, since ive used it before.(anyone else ever use it on a truck?)

And im gonna give the mid mount/under cab mount system a shot first, cuz if it worked on my car, itll work on anything. The reason i wanna do it, is because its so easy, especially on a truck, just weld on a t3 flang, to the exhaust under the cab, and run 1 pipe up to the intake,and oil setup with a scaveng pump which is NBD,ill prolly just use fleaxable exhaust pipe for the coldside, since someone borowed my good mig welder, and somehow had it disapeer, et another welder im just gonna spend 60$ on 11ft of 2" flex/stainless. the only thing i'll have to weld is a Y pipe to connect the flex to the throtle bodyy, or i could jsut buy one, since i seen one on ebay.

Heres some videos of the rear mount systems, explaining everything. or check my albums, i explained alot of stuff about it to, and you can see my a couple of my build pics of my cobra.
heres part 1. watch part 2 also on youtube, jsut look for it. WATCH BOTH!

YouTube - STS Twin Turbo Corvette part 1 of 2

i have a video of my car, but it sucks, cuz i didnt get on it, cuz i cant tune it till i get my wideband. so that will come soon.

Like the guy says, there are alotta people that still dont beleive in the system, because they have been around regular systems only, but the rear turbo system is not a bad way to go, there are jsut as many pros and cons as a regualr turbo sytem.
IMHO, i think the rear turbo system is great, and i wanna put it on everything LOL, I built the kit myself on my cobra, and it cost and 1/8th of what it would of cost me to purchase a kit for my car.so thats some of my 2 cents on rear turbos since it was brought up.
As soon as i get my truck, im gonna start doin the system, ill do a thread on it as i go along, i do something different then you guys, plus i wanna see how it'll work on the truck, and if not, ill jsut do a regualr turbo manifold sytem under hood, but i know it'll work.
Im sure im gonna be on here asking questions about stuff, as soon as i start the build, but im looking forward to chatin with you guys on here, and learning,sharing some info.

570cobra96svt · #**192** (**permalink**) 10-01-2009, 01:22 AM

heres part 2, i know its a corvette, and this thrad is about a turbo I-6 pickup, but all engines are the same concept, this video explains, how you get better fuell milege alos with a turbo, if tuned good.

YouTube - STS Twin Turbo Corvette part 2 of 2

570cobra96svt · #**193** (**permalink**) 10-08-2009, 11:49 AM

hey guys does anybody know the a/r of the gm 6.5 borg warner turbo? Cuz i have a t-70, which i think is to big, i was thinking more of a 60-1, its got a 70 ar compressor, and a 68 ar. turbine, would that be a good size? im looking for it to make boost around mid to hi rpm, since the 300's got plenty of torque down low, but dont have nothing up top.

Or whatabout a cummins turbo? HX40? i think? idk the a/r, but i know there about the same size as my t-70 on my cobra in comparison. so i think that a lil' to big for the 300'.

i got the 93' 300-6 f150 the other day, and i cleaned it up, gonna go buy some flat black urethane paint and spray it. And i started looking at the exhaust, i might just do a regular turbo off the header, or i mite stil go with the mid mount, im just waiten for my new welder to get here, and the t3 flange and i got some 2-1 y pipes for the exhausts and also one for the doouble barrel intake,to feed, from the turbo piping coldside.. Ill get some pictures up when i get some time, prolly next month the way ive been busy doing tree work around here from all the wind we been having.

Towmanjbo · #**194** (**permalink**) 10-08-2009, 05:03 PM

Hi Cobra,
First off Welcome to FTE!

Hope to see you stick around.

Secondly the original poster hasn't been around since he sold his '88, TurboBricklayer is on now and again though maybe he can help you. I haven't done this yet, and turbos are kind of new to me. But someday I'll get'r done.

turbo bricklayer · #**195** (**permalink**) 10-10-2009, 10:57 PM

Dont know much about the specs of diff turbos but i can tell u that the 6.5 is perfect for the 300. i can cruise up a grade without building boost but step on it and it builds up nicely. any smaller you would never get fuel economy and much bigger it may not spool up. u making your own ex man ?