I have a 1990 that we're installing parallel turbos. Two stock manifolds cut to be fed from three. They're out getting caps welded on the ends. The rear turbo hangs from cyl. #4 and 5 downwards like stock and the front turbo hangs from cyl. #1 and 2 facing up. The turbos are HE351 which are kind of big to be run together but it should work seeing as HY-35 runs off a 4BT. When the manifolds get back it'll be install time. Hopefully it works well.

 

Sounds interesting. Cant wait to see it!

 

Get some pictures man I want to see this sounds cool.

 

doesn't the HY-35 have a 9cm exhaust housing?

 

Post some pics when you have the manifold back. I am really interested to see how this is going to turn out.

 

with a good set of injectos you should have no problem spooling them, sounds cool, and like you going to be tight for space but put some pics up

 

Yep, that should help them spool off just 3 cylinders. Shouldnt lag anymore than a 18.5 cm housing would. I just wonder if the front 3 and rear 3 cylinders are going to get fed the same amount of air in our restrictive intakes. If not one turbo may spool slightly quicker and bog the other. But that wont happen. lol Sounds like a high volume low boost setup, should work great.

 

Hmmm, this will finally answer alot of arguments... I would suggest running two pyros to keep track of each "bank" of cylinders.

 

Are they both dumping through the same IC or into the same intake port? Will there be any surging issues? I am curious to see how it runs.

 

I owuld add equalizing ports between the exhaust ahead of the turbo's and another between the boosted side as well. this way you don't have the front three running against different drive pressure, or the back three running different boost ...........

 

I agree, a tie between the two would likely improve power as well. This is akin to running a crossover pipe between banks of a V8 engine. Without the tie you're sorta getting close to two 3 cylinder engines sharing the same block.

Still its an interesting concept and I look forward to finding out how it performs and some pics!

 

update, please?

 

Sorry about the slow process. work has been keeping me busy. The turbos are going to y together at the intercooler. (been changed to a 2nd gen 24v one) For anyone that doesn't know HE351 are off '04.5 CR and have a 60 mm compressor wheel and use a 9cm exhaust housing with a 4 3/8" outlet. I'll try to get some pictures posted. I'm building three twin set-ups right now so it's pretty busy.

 

Sounds cool and will be great to see how it turns out! I believe the comp. on the HE351's are 62mm not 60 though, but the small turbine housings should really help the 3 cyl.'s spool. I also agree with running a pyro on each bank..

 

Here you go. I'm not trying to say i told you so just proper info.