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my 70 turbo project

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12K views 86 replies 18 participants last post by  SS_Sean  
J
#1 ·
heres a couple pics of my 70 turbo budget project in the making...

big inch aftermarket big block....


front end apart sizing up intercooler

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door panels off sizing up the crash bar job.....

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progress in the back...almost done

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headliner out and most of the glue scraped off....

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the metal outer ring thats circled in red... it seems to bolt up with screws... what is the point of having that in there... does that need to be there or can i take that out?
 
7
#3 ·
I love the tires. what size? and did you do a minitub? I'll be following this thread
 
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J
#7 ·
there centerline autodrags...i dont like them but they are super light... im in the process of getting bogarts for the rear for racing and dragstars for street/car show driving...

the tires are mt et streets... they are 13.5 wide and fit nicely with about a inch on both sides... no minitub just rolled outer quarters...

thanks for your interest... ill post progress pics but being a 22 year old without a job the progress is going to be slow lol
 
B
#4 ·
I wouldn't mess with the roof support. The roof really has no other support for such a large area. As far as the doors, I can't remember what it took to get my bars out. I can tell you that my doors are completely empty except for a thin gauge steel upright that is in place to allow the door handle to be in the stock place. This also supports the center of the door panel from moving around. A trick for the back windows is to pull the regulators out and put a bolt in the track to hold the windows up.
 
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J
#8 ·
bracketchev1221 said:
I wouldn't mess with the roof support. The roof really has no other support for such a large area. As far as the doors, I can't remember what it took to get my bars out. I can tell you that my doors are completely empty except for a thin gauge steel upright that is in place to allow the door handle to be in the stock place. This also supports the center of the door panel from moving around. A trick for the back windows is to pull the regulators out and put a bolt in the track to hold the windows up.
Click to expand...

i dont plan on sitting on the roof haha so can i take that weight out... its going to be a very limited street car... basically a full out race car with lights and some street miles here and there... do you have any pictures of your doors with what you took out of them.. i understand what your saying but if theres pictures that would be alot better... the back windows i going to do what you said just didnt get around to it yet... i got a guy cutting me lexan for all the windows for 250 bucks.... top quality stuff too.
 
G
#5 ·
FYI, the little wire "loop" over the windows is for folding up and storing the factory shoulder belts. There should be 2 per side, you can see in your pictures another set of 2 holes about 10" behind the one that is still installed. You folded up the factory shoulder belts and tucked them over those holders.
 
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J
#22 ·
thanks...id like to think im ahead in the game being that i just turned 23 today.... im buying myself some bogarts for the car haha... ive been into this for about 2 years now with some time drawbacks being maintaining deans list in college and working low paying part time jobs.. just graduated college so looking to get some full time work and get a nice money flow coming in....

ill keep the thread updated when i get some more done...
 
J
#23 ·
yea i believe it...this one will be to rough of a fit so im going to try to see if i can cardboard mock up the size of them ebay intercoolers or just have a custom one made from my mock up...

theres a nice yellow chevelle in the central nj area that has a procharged and intercooled 71 or 72 cant remember saw it at englishtowns raceway parks car show
 
7
#21 ·
do you really even need an intercooler? depending on how you build it and what fuel, you can get away without an intercooler? is this right? I would like to know more on when an intercooler is needed.

I have 275s on my nova right now. dont think 315s will fit without some mods.
 
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J
#24 ·
71 chevy said:
do you really even need an intercooler? depending on how you build it and what fuel, you can get away without an intercooler? is this right? I would like to know more on when an intercooler is needed.

I have 275s on my nova right now. dont think 315s will fit without some mods.
Click to expand...

you dont need an intercooler if you plan on running like under 4 lbs of boost maybe but it would be pointless, turbos get really hot from the exhaust heat so intercoolers are always a benefit.... i plan to crank this bad boy out as much as 14-22 lbs depending on what my tune will let me go on pump piss or c16...

ill talk to my friend tomorow bout his nova... but other then massaging the inner wheel wells hes got a 315 in there..
 
J
#28 ·
update...took another 150 lbs outa the car

projects on hold for now.. ran outa money until local swap meet spot at end of the month at englishtown...(anyone here plan on going stop by my spot for a burger or dog and say hello)

talked for a few hours today with one of my buddies who done a bbc with 106mm turbo in a fox body mustang notchback... we are trying to contemplate if putting my turbo in the trunk of my chevelle would be a possibility... pros would be using long tubes on motor allready, exhaust dump allready near rear, in car water intercooler setup in route, cons could be lag if the turbo exhaust housing isnt rite...

ill take some more pics tomorow....
 
6
#29 ·
J1970SS said:
talked for a few hours today with one of my buddies who done a bbc with 106mm turbo in a fox body mustang notchback... we are trying to contemplate if putting my turbo in the trunk of my chevelle would be a possibility... pros would be using long tubes on motor allready, exhaust dump allready near rear, in car water intercooler setup in route, cons could be lag if the turbo exhaust housing isnt rite...
Click to expand...
If the turbo will spool quick enough back there, I say go for it! I always wanted to try it just because I could. I think it was Mike Murillo who did twins in the trunk of his mustang and that thing was flyin'!!
 
J
#31 ·
i seemed to run into a problem with the door crash bars today.... i drilled out the tack welds on the one side... and managed to get it to free up... started to cut the beam in half... this is 6 hours progress into one door.... alot harder to do then i thought....

anyone cut the inner do skelton out of the door... if so what did you use to mount the window crank, doorhandle, armrest,and lock mechanism to?

also the metal roof support .. anyone take that out yet? looks easy butt so didd the dcb;s
 
6
#35 ·
Those crash beams are a real bitch, aint they? There's no easy way getting them out. You can press on the way you're doing them now, it's slow and time consuming but when you're done, you're done, or cut the outer skin off to get at them and reskin the door with crappy fitting door skins (not recommended unless the skins are shot and need replacement anyway), or as you mentioned earlier, cut the inner frame out, but I would weld the frame back in after I was done. I've never done the inner frame removal method but that might be just the ticket. As for the inner roof support, unless you have one bad ass roll cage, I'd leave that alone. The roof carries a lot of load and weakening it might cause you some serious body damage.
 
D
#33 ·
Since you're close enough to deal directly might wanna look up Keith Mease. http://www.mpefab.com/profile.htm

A google of his name will supply all kinds of interesting information. BUT!! guy is mad talented with fabricating turbo stuff.
 
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6
#38 ·
yikes!! that's a pretty hefy size turbo, what size is it and what kind of motor it that thing going on?

Looking at your door, if you could gently remove the door seal and not damage it (or trash it and buy new ones) and zizz off the inner frame underneath the seal (just don't get into the holes for the seal) then weld it back in after you get the crash beam out. Then a little grinding of the weld, maybe a little filler work over the seam, paint, replace the seal and nobody would be the wiser.
 
J
#39 ·
66rat said:
yikes!! that's a pretty hefy size turbo, what size is it and what kind of motor it that thing going on?

Looking at your door, if you could gently remove the door seal and not damage it (or trash it and buy new ones) and zizz off the inner frame underneath the seal (just don't get into the holes for the seal) then weld it back in after you get the crash beam out. Then a little grinding of the weld, maybe a little filler work over the seam, paint, replace the seal and nobody would be the wiser.
Click to expand...

its a 91mm ... going on a bbc... sorry to be bland but i cant really say specifics on the motor

how do you remove the door seal.. are you talking about the inner structure??
 
J
#41 ·
BB_Mike said:
Take pictures of the engine bay for me if you don't mind. I am in the design phase of a single turbo ~540 inch motor for my 71 coupe. It will be on a 10.5" tire thouhh...
Click to expand...
when im done i will... im no where near done lol.... what are your plans for it... what size turbo, intercooler, what headers, y pipe, where you gunna put the turbo and which way... what side... you got all the street stuff or just full out race means... meaning ac, ps, factory brake booster, belt driven waterpump and fans or those electric... etc...
 
#43 ·
It'll be about 91mm in size. I have some local turbo gurus who are going to pick out the right A/R and flanges and housing and such. The turbo will be where the battery is (it's going to the trunk). Air will come in from the head light. Compressed air will exit down.... intercooled yes, but still trying to decide on if I want to tackle Air conditioning or not. I kind of need to for the "street car" bragging rights I'm going for. Hot side will be custom headers to a Y that meats at the flange. Getting the ~4" exhaust around the fender and out the bumper is going to be tuff. Can't just do it the easy way and dump it 18" behind the tire. I really want it out the back bumper though. Turbo exhaust can be a filthy thing to exit any where else.

I've been looking at DIY fuel injection controllers, but I might just spring for the BS3 and not look back. I have access to a few ORSCA competitors that do BIG thing with smallish turbo motors. Most important thing I can suggest is for you to be able to progresivly control your boost. I wont have the problem of wanting to leave on significant boost, that's tricky in and of itself referring to the Co2 comment earlier.

Good luck! and you will be done before I am. I am doing a full frame off resto.
 
J
#44 ·
BB_Mike said:
It'll be about 91mm in size. I have some local turbo gurus who are going to pick out the right A/R and flanges and housing and such. The turbo will be where the battery is (it's going to the trunk). Air will come in from the head light. Compressed air will exit down.... intercooled yes, but still trying to decide on if I want to tackle Air conditioning or not. I kind of need to for the "street car" bragging rights I'm going for. Hot side will be custom headers to a Y that meats at the flange. Getting the ~4" exhaust around the fender and out the bumper is going to be tuff. Can't just do it the easy way and dump it 18" behind the tire. I really want it out the back bumper though. Turbo exhaust can be a filthy thing to exit any where else.

I've been looking at DIY fuel injection controllers, but I might just spring for the BS3 and not look back. I have access to a few ORSCA competitors that do BIG thing with smallish turbo motors. Most important thing I can suggest is for you to be able to progresivly control your boost. I wont have the problem of wanting to leave on significant boost, that's tricky in and of itself referring to the Co2 comment earlier.

Good luck! and you will be done before I am. I am doing a full frame off resto.
Click to expand...

sounds like you got a good plan mapped out.... yea bs3 is a killer setup if your going efi... unfortunantly being an out of work 23 year old college graduate i have to keep it simple-stupid with a blow through carb on top of my motor... but if you have a connection with big stuff 3 then let me know i might be able to pinch some pennys if the price is right....

my car is going to be a streeter (no wipers or wiper motor but has rainX type of deal) lol... to and from local car shows and late night hang out spots... i also plan to grudge race it at the track...
 
#45 ·
Just don't go too cheap on the carb. I know of one local guy who did the do it yourself blow-through carb and he put a hole in his piston. I was on the carb/EFI fence for a while, but now that I have an 02 sensor, I'm hooked on this whole "tuning" concept. lol.

so give CSU a call and you might better check in on some Turbo Forums if you haven't already. Your combo will make over 1000HP at a measily 13psi of boost, so try not to blow **** up for starters.
 
J
#46 ·
im going with a air to water icooler in the passenger seat or upfront under the dash.... i plan to make 24 lbs of boost with race gas.... i got some good bottom end stuff in the motor so....

CSU??? i cant think rite now so whats that?


im just trying to find more spots to take out weight...
 
#48 ·
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