Holset
 

hello
Im new to this forum
I have a 2g dsm with an h1c I have been considering going with an hy35 to help with lag.
I discovered the thread with the honda with the hy35 and noticed what was said about the twin scroll set ups spooling faster when used properly. I have the 18cm non wastegated housing. What I did is cut down the center rib and blended the 2 into one and welded a external waste gate into it.
It spools pretty slowly and I have only been able to get a max of 25 psi out of it. I think the single scroll where it hits the turbine wheel is really restricting it. Do you think I should get another twin scroll housing and make a matching header or go with the hy35? I plan on building a header anyways so Im not worried about that.


Thanks for any help

Kevin

Re: Holset
 

I would go with a HY35 they spool reasonably quick on a Honda so should work good on the DSM.9cm vs 18cm has got to spool way quicker. :S

Re: Holset
 

Ya thats what ive been looking at doing. Im not relly runnig through an 18cm since I blocked off half of the housing.
I would estimate it at being a 12-14cm now. I guess I should give some pics of what I did
http://autos.ph.groups.yahoo.com/gro...60?b=2&m=f&o=0

http://autos.ph.groups.yahoo.com/gro...60?b=6&m=f&o=0


hope this is ok

Re: Holset
 

Well I just won a he351w off of ebay. I figured it was a hy 35 but I went through the other thread
https://www.homemadeturbo.com/forum/...?topic=42527.0
of model x's and saw what gt350 had writen about him having an he351w aswell.

Has anyone else used this, or know anything more about this turbo like a comp map?

Now i just have to take off the h1c and switch in the new girl. Hope this spools abit better if not ill just have to continue to drive the car like I stole it. hahaha