Talk to me about Holset Turbos...
 

So these turbos are pretty cool and seem to be fairly available at a price I like. I have a T3/T04B "S"-Trim right now that is just been rebuilt, but at 37lbs/min for a flow rating it's not exactly the hard hitting top end monster I think it would be as a .63/.60 flows 36lbs/min I'm still dabbling with kids toys. ;)


My set-up is the standard stock D-Series (Y8) on 10lbs and my preference is towards larger turbos because lag is fine with me because power is only a downshift away and in 1st we call that traction control. 8)


On eGay I've seen some pretty nice Holsets, but I have NO idea what code to look for from HY35 to HX35 to H1C to even an HX25......I'm kind of a n00b all over again.


I also may look into what another member did with a .63 housing (.48 depending on suggestions) and bore it out to fit the wheel. However, the center section looks held together V-Band style and don't know how that would work with traditional Garret/AiResearch bolt in housings. Oh and is the flange a T3 flange (manifold wise)? I thought it was, but not sure.




Basically guys, any and all knowledge about recommendations for a Holset application on my stock D-Series. Thanks fellas!


Oh and anyone want a freshly rebuilt T04b?




JP

Re: Talk to me about Holset Turbos...
 

h1c hx35 hy35

Re: Talk to me about Holset Turbos...
 

Biggest --> Smallest, right?


JP

Re: Talk to me about Holset Turbos...
 

h1c is circa 1987, slightly smaller, hx and hy are same size for the most part, any of them will make you 250whp

Re: Talk to me about Holset Turbos...
 

Any idea about the oil flanges and if my drain flange and oil feed fitting from my T3 will work?


JP

Re: Talk to me about Holset Turbos...
 

its all based on a t3 center section for the most part.

t3 flange, 1/8" npt oil in, t3 oil out.

Re: Talk to me about Holset Turbos...
 

how much for the to4b??

Re: Talk to me about Holset Turbos...
 

Most of them aren't 1/8NPT. You can make it work, but it's def. not NPT thread. I think it's JIC or metric.

Re: Talk to me about Holset Turbos...
 

i was told by the guy at a hydrolic shop they were "standard pipe thread"

Re: Talk to me about Holset Turbos...
 

if youre only gonna go for 10-12 psi or so youre prolly better off with a T04B/E than a holset, they seem to be absolutely GREAT for high boost (15psi +) but low boost their efficiency is good but not killer.