Anyone make a homemade stretch I/C?

[Chris Taylor]

I have been thinking about fabing a stretch I/C. I have seveal stock I/C. I was wondering if anyone has any special tips or advise. I am going to fab new tanks because I am using a Delta gate and want to clock my compressor housing down.

 

[Chris Taylor]

ttt, Anyone?

 

[larry33kc]

I think there is some info on this on the big board

 

[YGETV8]

I have done two... the first one (15 row) turned out great, the second (20 row) not so great. I'd think you will find that you won't have much room to "clock the turbo housing down" as the stretch will still sit in the same location with relation to the top of it. I don't know what you have in mind, though, so go for it!

TEST the cores before you procede! That is what was/is wrong with my second one, a badly leaking core, and now it's too late!

I don't know what advice to give you really. I did the cutting of the cores, the fabrication of the new tanks, and called in some favors to get the welding done. I did make the BGC style neck on the first, and a "low profile neck" for the second IC out of two 2.5" cast elbows from Turbonetics that allowed me to raise the whole IC up in the car about two inches since it was a 20 row.

 

[Chris Taylor]

Jay,

I was thinking about moving the I/C up a little. If the I/C is moved up there wouldn't be much room to clock the turbo housing down. I was going to use .090 aluminum sheet aluminum for the tanks. I have pressuer checked two of the four I/C. Two leaked and the other two are OK.

I have used epoxy to seal the leaking stock I/C's. Seems to work OK.

Did you see a power increase with the stretch I/C?

Thanks,
CT

 

[JToups386]

For what it's worth, I saw a 3-4 tenth drop in ET and about 3-4 mph, with my BGC stretch I/C. As did another friend with the same one.
However, I wouldn't know anything about making my own, unless I could do it with a hacksaw and JB weld. If you can do it, then go for it! I'm sure it would be rewarding to say you built your own, and have it work well! I just have to use the old fashioned method of manufacturing mine through a MasterCard and someone else's shop.
If it's something you have success with, and decide to do some more, then I have a couple of good stock cores to sell...

 

[Chris Taylor]

Making the I/C's is not a porblem. I have modified two Power Stroke aluminum I/C. New tanks etc. I was going to run this unit on the yellow T that I drive often. I have been thinking about doing this project for several years now. I think it would work well with the new SMC alky.

 

[YGETV8]

Chris,

Can't give you hard data on the stretch IC's gain, but my T-Type used to run 11.70s@117+ on an untouched motor and alky with my 15 row! I have since bought a Mark Jackson 17 row for my WE4, and just yesterday a 17 row Action Fab for my T-Type now that it's back out on the road. They are obviously a big improvement over the stock ones!

I decided to purchase rather than build as I found that it does take a lot of time to fabricate, especially when you have NO fabrication tooling. Plus, I found good deals on these used, so...

I tried using epoxy on my 20 row as I had on others, but the leak is HUGE! Never got it to seal.

Jay