so this is going to be difficult to explain. but I will do my best. I also didnt put it in my "all in one" thread" as it is a pretty specific question on forced induction. I have decided to boost my b16, well going to try this first and if I cant make it work then I am going NA B20 vtec. Why wont it work you may ask? well because it is going into a fiat x1/9. Mid engine so the exhaust is in the front near the firewall between the engine bay and driver. Not much room at all. I have borrowed many turbo manifolds and none will fit. so I am off to make my own. I have it set that 2 different ways will work/fit. 1. build it like a standard log and pick up a riser (3 inches approx) to extend the T3 flange up above the valve cover. Issues with this. if I put it in the center it will block off the dipstick. so I may put it between exhaust 1 and 2. option 2 run it like a log but after exhaust #1 take a 90 degree up over then to a flange. biggest issue with this. the kit comes with 1.5 ID 90s and Tees to make it up. will 1.5 ID be too small you send up to the turbo (about 8 inches travel) my thought was hoping i could find a reducer of sorts to step it up. but couldnt find any 90 degree ones.
The important part. I am NOT concerned with getting ultimate boost/power. mid 200's is my goal. if needed I can try to draw something up but I really suck at it.

Odie
1979 Fiat x19 with a b16

 

I would see if there is room to have a custom sidewinder-style manifold to put the turbo over by the transmission. For this custom application, you're probably going to have to take the turbo and the car to the fab shop and let them do their magic. Cody Loveland in Buckley, MI would do excellent work, no doubt...looks like he's only a few hours north of you.

 

hmm. Will have to check that out. Not sure the sidewinder would work as the coolant tubes go over the trans. But might be worth a shot to pay them for a bit of consulting.

Odie

 

My thought too, something like this:



Personally I probably wouldn't even attempt going over the valve cover for a turbo mount. I feel like that's just going to be an absolute nightmare to fabricate and to maintain. Would make routing the rest of the pipes weird too. Someone more imaginative than me may be able to find a good solution.

Another option could be to do a rear-mount turbo setup further down the exhaust. It would hurt spool time and you'd need longer oil (and possibly coolant) lines, but would potentially open up a lot of options as to where to mount the turbo. You'd probably need some sort of hanger system to hold up the weight.

 

www.codylovelandracing.com

I bought a sidewinder manifold from him for my B18 Civic way back in the day.

 

Here is a video that might show more of what I am thinking.

I am liking the idea of the rear monted. Would have a 4-1 header with a single pipe under the engine coming up after the drive shaft. If I have room. Doing mock ups

Odie

 

Why are you using a T4 flange? I'm not sure what your overall power goals or use of the car will be, or what turbo you're planning to use.

I think you would have very poor flow with what you're describing for the log manifold.

Rear mount seems best option so far, especially since the exhaust doesn't have that far to run to the back of the car with where the engine is. Not sure what you'd have to do for drain lines though.

 

lol. Misspoke. It's a t3. Power looking for street/weekends/2-3 track days mid 200 hp. Yeah didn't like the "s" but it is tight to the side if I go straight up. Good point on the rear. It really isn't too far. Drain lines? Oil? Is there a reason I can't put a bung on the rear of the oil pan?

Odie

 

As long as you can run a mostly vertical drain line with no kinks or dead spots, you would probably be OK, but that also depends on you getting the turbo mounted somewhere above the return bung. Since the turbo would be on the other side of the engine when you accelerate some of that oil is going to be trying to push back up the line as well, I have no idea how much that may impact things. I've never even had a close look at a rear mount setup in person, just seemed like a good solution for you - just not sure about routing the drain lines.

If your goal is just mid 200s like you mentioned an 84MM LSVTEC or B20VTEC may ultimately be a more simple solution.

 

All of this is in prep for a winter project.. it will be turbo or na b20 vtec. Na would be easiest but turbo beats it in cool factor. I will probably make a few attempts at turbo before giving up. Using a cheap ebay turbo for the mock up. Will buy a good turbo and a charge cooler if it works.

odie

 

This is my car, would this turbo placement be to high?

 

Cool! I don't think so. Would block my view out the back but as we say, what is behind us doesn't matter anyway!

what motor is that?

Odie

 

Its called a Rover K Series, basically a british 1800cc engine with really poor head flow(think B18 non-vtec flow)

 

So here is the beginning of my prototype. Alot like lee's



Odie

 

Thats interesting altho at this point the turbo will sit i see a possibility for a good flowing 4-1 manfold with a proper collector.

 

that was my first thought. but unfortunately the top bolts get in the way. although..... thinking.. I could move it out further than where the bends start.... hmmm like I said this is a prototype and ALL input is appreciated.. .

Odie

 

yeah not looking promising. right now the log sticks out about 3.5 inches and that is about the limit I have to run something up. even the current prototype only has .5 inches between it and the heat shield / firewall (1/4 gap between heat shield and firewall)

Odie