Turbo Decisions...Holset or Garrett

[Rosco]

I'm looking to push 350 WHP, and I would like decent spool time. That lead me into researching the 2871R in .64 trim and then I saw the 2876R .64 trim which GARRETT tells me it has the power potential of the 2871R .86 trim and the spool time of the 2871R .64 trim .

The problem with the 2876R is you have to cut the motor mount area to make it fit (bottom-mount setup). If I where to top-mount it, I might as well go with a better turbo setup. Which in turn lead me to Holsets courtesy of this thread:

zer...hread

Now As I said before, I'm looking for 350WHP so would Holset be a bit overkill? The price of the holset is defnately more attractive than the price of the Garrett and I have been hearing that Garrett's qaulity has gone down lately. If I am going to spend $2k on a turbo it'd better F'in last a good while. One last thing, More important to me than making 350WHP is engine response. I don't want a huge laggy a** turbo, RESPONSE is key for me. I don't want a Twin -Scroll setup on this car. Car is a DD with moderate track-use (for now). Once I get better at driving I will re-evaluate the setup and than change things around if need be.

[kentuckyslider]

They only holset I would consider for that power range would be the HY35 with the 9cm^2 housing(about .48ar) It seems to be very close to the GT2871R .64 ar 52trim but it all depends on how much money you have. IF the Garret takes a dump your looking at a $1200 ash tray and if the Holset takes a dump your looking at less than $300 to have it rebuilt buy a professional turbo shop. I've had a GT2871 and I loved it until it took a dump and was then worthless, but outside of that they are a very good product and there is a reason that alot of people run them on our cars. I'm drag racing my SR and I just wanted more than it could offer and couldn't afford a $1400 turbo that would cost $1000 to fix if it went down!!

[Rosco]

http://www.youtube.com/watch?v=xVuvR_rtqxU

Found this video...Looks like I'm going to research the HY35. I will post here with results in the future.

I definatley do not want to have to rebuild a Garrett turbo for that price.

[V8slayr]

When you are refering to these turbos A/R is the term you are looking for regarding the exhaust housing, not trim. And you said you don't want a twin scroll setup and i'm curious as to why not. The twin scroll 3071 will spool even faster than the 2871 and make even more power. You get the best of both worlds. I personally like doing something different too tho. Seems like everybody and their brother runs a 2871R on there 240 and they do well, don't get me wrong, but there are definitely other options than the 2871 that will give you what you want

[nelson8708]

An HY35 would spool quite a bit faster than a HX35, but this gives you the idea.

http://www.youtube.com/watch?v=HlKfoibQ6w8

[david200095367]

how will the gt2876r not clear the motor mount? i have a gt3071r .86 bottom mount and it clears just fine.

[aaronbeisel]

Get a gt35r and throw down 5 at the wheels and be done with it.

[kentuckyslider]

Get a gt35r and throw down 5 at the wheels and be done with it.

I'll throw down 5 at the wheels if I want to with my $250 diesel turbo and I won't have a $1400 ash tray if my CHRA takes a dump. Holset HX40pro>GT35R. Cheaper, faster spool, rebuildable.

Let me say this before I get flamed, If money wasn't an object and I was building a Drag only SR20 I would do take the GT35R, but how many people on here can say either of those two things??? Honestly, If I was building that car I would have a BW S372 or a GT4202!!

[newdude1]

So the HY35 can be mounted on the stock exhaust manifold?

[kentuckyslider]

So the HY35 can be mounted on the stock exhaust manifold?

No, it is a T3 flanged turbo and it is very large compressor with a small exhaust housing for quick spool speed. I've seen a B18 honda make 450whp at 25psi with one and a 1.8T GTI VW make 350whp at 18psi. You will need a T3 top mount mani and an external WG for the HY35 but you will still have less in your setup then the cost of a GT2871R alone.

My HX35-$240log mani- $220tial 38mm WG- $240

IMHO, it's a now brainer if your looking for some serious power go Holset!!!FTW

[Rosco]

Garrett=$$$$$$

Not saying Garrett is bad, but I'm looking to not spend a killer amount on just one thing. TS setup would be badass, but again it comes to $$$$ (I also like doing things a little different too). Now I'm no baller, but If I wanted I could dump a whole bunch of money into a TS setup, but in the long run after the Garrett takes a dump, I don't want to have to rebuild it for the same price I bought the damn thing for.

Holset seems like the best bang for your buck....Now it just seems like a matter of what internal engine mods should I do before I step up to the HY or HX35 turbo.....I really don't need 500hp, but if the HY can put me into the 350ish all the way up 500hp range and be rebuildable for dirt cheap than why the hell wouldn't anyone go for it?

[Rosco]

how will the gt2876r not clear the motor mount? i have a gt3071r .86 bottom mount and it clears just fine.

Not sure exactly why, but a friend of mine has the 2876r and he said he had to do a little modifying of said area......

[Rosco]

http://cgi.ebay.com/ebaymotors...A1318

Why is this guy saying that he made full boost just under 5K? I thought these are supposed spool faster?

[kentuckyslider]

Bad setup. I've never seen one on a Sr but 4g63 DSm's and 2.3L ford single cams spool this turbo by 3500-3800rpm. That is as fast as a GT2871R. You won't get mush more than 450whp out of the HY35 with the small 9cm2 housing. It just doesn't flow enough.

I would say keep your stock bottom end, get some tomie 260's or HKS 264's, and boost it at around 20psi and you'll be good for 400whp with that setup with a good rom tune.

[Rosco]

Sounds like this is the route for me....I already have a MHG and ARP head studs(better safe than Sorry), so all thats left for me is injectors and a ROM Tune....I will prolly go with an Enthalpy tune. 450whp is plenty for me....and since I'm really only shooting for 350whp I think that this is the best bet....