Has anyone got a Holset turbo on their FD?? Please let me know model, specs and power output if so.
Thank you
Lee

 

I have seen many DSM's with holsets and actually run a 2001 HY35W on mine. Its characteristics are VERY similar to the garrett 60-1 in spooling and power output, not to mention longevity. I think the FD would be a great candidate for a holset.

 

my friend has a holset hx35 on his BP fd, i have some pics somewhere

its not tuned yet not we are looking for 500whp

 

i cant find my pics of the car together but this is the turbo

 

someone just sold a Holset 55 (right number?) on the 3rd Gen forums... huge *** turbo...

 

I'm running a SR stage II, or a HX35. Couple years ago it made 407rwhp at 16 psi on a stock motor with nearly 50k miles on it. I was hoping to have my new motor (Large street port, built by Pineapple Racing.) broke in and dyno tuned, but my ignition box died on me, and haven't had the funds to buy a HKS twin power. I was hoping for 500-550rwhp on 110 Sunoco, and methanol. CJ

 

I have a H1E on a stock port REW, no dyno numbers but I am getting 10psi @ 2500 rpm. I haven't finished tuning it yet so I can't give a lot of detail, but so far I really like the way the REW and the H1E work together.

 

H1E is an earlier model HX40, just like the H1C is the predecessor to the HX35. Supposedly the HX series flows better.

 

Guy's some brilliant info. Very pleased with that.. I have been trying to find out what the difference is with the H1E and HX40!! I thought they looked very similar! I guess really I want to get an HX40 out of the two? Would an HX35 not be too small? I am running a stock motor currently and hoping for 400bhp? I would like scope to get up to the high 400's at a later date as I have a spare motor I might rebuild with some minor port work. My main aim is for quick spool time as it will be mainly a street car. I do not want to over spec the turbo.
I have another thread asking about Borg Warner and Master Power turbo's but I am really kean to look at the Holset or BW particularly as it is so unheard of in the UK and I like the thought of having something unique!
What would you choose between the Holset and the BW? also on the BW I gather I would need a S362? I have heard some people use the S200 but again is this not a little small for my requirements?
Finally what exhaust housing would I need to go for on the HX40 or HX35??

Thank you
Lee

 

You might want to do a little research before buying a holest, I think ErnieT or maybe someone else had a bunch of problems with his. However, I've been running a used one on my FD for 4+ years now....I've never had a problem with it.

The HX35 is a good sized turbo. With my old motor, 3.5" exhaust, m2 medium IC, Excessive cast manifold, and a bunch of other little stuff, I was seeing full boost around 4k rpms (15-16psi) A little laggy down low, but at 4k or so, it would really come on hard. All in all, its not really a bad turbo imop. CJ

 

I looked into all this stuff recently because a friend of mine is going to be running two HX35's on a 3000GT.

I have heard the HX40 is less durable than the HX35, but I cannot recall if it was from a reliable source. The HX35's and HX40's mostly come with a divided exhaust housing. Some of the HX40's are designed for a 4 inch downpipe I think. The HX55's I've seen all have an undivided turbine housing. The HX35 is readily available because it came stock on manual transmission Dodge Ram diesel trucks. Many (all?) of the HX35's are internally wastegated. The HY35 came on the automatic models and has a smaller exhaust housing.

There are no published maps for the HX35 or HX40 that I can find, and there are some variations of the two in terms of exhaust housings. From what I've been able to gather, the typical HX35 (not HY) is 56mm inducer / 83ish mm exducer. if you do the math, 56^2 * 83^2 , it's about a 46 trim. The HX40, from what I can see, is a 60mm inducer with 85mm exducer, so about a 50 trim, plus it has a 4" inlet. Also I have seen HX35/HX40 hybrid turbos sold as upgrades for Dodge Ram's. By comparison, a T04S turbo is a 60 trim (59.5 mm inducer with 76 mm exducer), while a GT3582R is a 61mm inducer and 82 mm exducer, 56 trim.

 

Thats some good info.

My HX35 does not have a internal wastegate. I'm running a HKS 50mm one, with a 10(?) psi spring. CJ

 

Arghx, you really did do your reasearch! I was aware teh HX35 is more available and have also seen the hybrid versions. From what I have found out the Holset has different size exhasut housing specced in cm.. #16 being 16cm and so on.. I am also building an RB26 motor aiming for aorund 600bhp and have been recommended by a few people the HX40 with the #16 housing.. Does anyone know what other size housings are available?
pp13bnos, Do you know what size exhasut housing you have on your HX35? I am suprised the boost kicks in that late?? Seems a little high to me which is what I want to avoid? Although I guess that's somewhere near where the stock twins realy kick in? Can anyone compare these with a Master Power T70or T64 or a BW S200 or S362? These are basiacally the other turbo's I am looking into!
Also pp13bnos, regarding ErnieT having problems with their Holset. I expect someone has had trouble with every make of turbo out there! What one person swears by another will no doubt be dead against! I have heard of a lot mroe people being very hapy with them!

Keep the info coming!
Thanks
Lee

 

I'm running an H1E with the largest wheels available and 22cm^c hotside on my 1/2 bridge FD. Spool is insane.. like 4-5psi by 1800 in 5th gear... Current problem is overboosting so I'm building a new manifold with two tial 44's instead of just the one.

A buddy of mine is building an r100 with a hx55 (even has the ti compressor wheel), can't wait to see what that will do..

 

So you have the old HX40 with a #22 exhaust housing? What power are you making? But then you have got a ported motor too!
If I am correct the Fd needs a bigger Exhaust side than a piston motor like the 26.. so If I am being recommended an HX40 with a #16 housing for the RB26 and aiming for 600bhp I would guess a bit bigger housing on the HX40 sould be the way to go?? Or maybe on the HX35 as I am not aiming for so much power? I gather I wil eed a big external wastegate then?? 50mm? Isn't that determined by the size of the manifld though?

What do you all say?

 

2A + Ron are you selling your turbo?! Or where did you get it?? I just found an advert for one! Sounds veyr like yours.. The guy reckons it is superior to the HX40 in spool time and power due to the larger compressor? I think this has also been slightly modified. See below.. IS this the on to go for then?!

Holset Part no. 3528785 / 3528786-1-9.
This H1E high performance turbo has been rebuilt with original Holset internal parts and balanced to Holset's specs. The compressor is a Holset H1E with a huge "Anti Surge" 4" (101.6 mm) inlet and 2 1/2" (63.5 mm) outlet for maximun flow, The compressor inlet has been "Fully Ported" to increase it's efficiency and air flow capacity, On the turbine side it has a 22 cm (Aprox. .84 A/R) T4 Tangential Divided style turbine housing and a "High Flow" 3 1/2" V-Band Outlet for a super fast spool up and high horsepower exhaust flow capacity. This is the perfect turbo for those highly modified 2.6 up to 4.3 liters 4 and 6 cylinder engines up to a mild 5.7 liters V8 engine. This turbo can support over 550+ HP and over 30 PSI of boost deppending on your aplication and setup. It is a lot better and more powerful than the HX40 or HX40W turbocharger because it has a larger compressor wheel.
HERE ARE THE SPECS OF THIS GREAT HOLSET TURBO:

Compressor Housing : Holset "High Flow with Anti Surge" H1E with a huge 4" (101.6 mm) inlet and 2 1/2" (63.5 mm) outlet.

Compressor Wheel : Holset 60 Trim 2.363" (60.0 mm) Inducer and 3.268"" (83.0 mm) Major diam.

Turbine Housing : T4 Style Tangential Divided 22 cm (Close to .84 A/R) with a 3 1/2" (88.9 mm) V-Band exhaust.

Turbine Wheel : High Flow 2.518" (63.9 mm) Exducer and 2.918" (74.1 mm) Major diam.

Center Housing : Oil-cooled.
Turbine Inlet Flange Footprint : TO4 Divided.

 

You know honestly, I've never checked. Next time I have the exhaust off, I'll be sure to measure it. CJ

 

H1C and H1E were v-band from what I recall, while the HX series turbos have traditional flanges

 

OP,

I am running a H1E on my FD. Originally, it came with a 26 cm housing (freaking huge). I ended up talking with High tech turbo in Utah and they were able to send me a 22 cm housing. My H1E is a v-band, as referenced above.

http://www.htturbo.com/ContactUs.htm

I was making 364 to the wheels at 14 psi. That was on stock ports. I just put my street ported motor back in and I have not had a chance to get it tuned. I may have some new numbers in a few weeks.

Just search this forum for Holsets and you will find plenty of gouge.

Charlie

 

Just bought a brand new H1E for my FC...lots of good information in this thread.

 

Thanks for the info guys...

Sounds from this that the H1E with the 22 housing is prefered to the HX40 then?
can someone tell me what exhaust housings the H1E and HX40 come with?? I was previously familiar with the #16 (16cm) housing for the HX40.. This sounds small compared to the numbers being quoted in this thread!! Is the #16 the smallest housing? What size do they go up to and in what increments?

Thank you
Lee

 

I have been reading a lot of posts! Trying to weed out the useful info! I read one earlier where a guy had got rid of his HX40 as he felt it was too big. I guess by which he means too much lag? Although there is no other info on the housing it was running or anything.

Caredden, How did you find the H1E on the stock ported motor? Good response for street use or would you say it's a little over the top? I have no immediate plans to build a ported motor. unless mine goes bang of course! What sort of injector sizes are needed running that setup to get to 400bhp? I have a set of 850cc primaries I picked up.. what size secondaries should I get to go with them Or do I need bigger primaries. I am not sure how the whole injector setup on the FD works yet?! Are both sets the same? Could I swap them around so I use my 850cc as secondaries and get bigger primaries? Anyhow I am digressing slightly from the point of my thread! Sorry!

Thank you
Lee

 

yeah im the one DC13B was talking about with the bridgeport and holset, mine is the H1E instead of the HX35, i love the turbo and the spool is absolutely out of this world!!!!!!! you can pick them up for cheap and there great in terms of longevity, look at some of these cummings running around with 200,000 miles plus on them. in short love the turbo recommend it to anyone who wants a great turbo for not alot of money.

 

Leeroy, I would say that H1E you found for sale would be a pretty good match for a stock ported motor, sounds like the same specs as the one I'm running... The 22cm on mine is definitely too small with the bridgeport but haven't been able to locate a 26cm for it yet.

Keep in mind that the holsets use an off size v-band outlet, so the dp flange
and clamp were kinda hard to source and expensive.. They also use a metric oil feed so you'll have to get an adapter..

Caredden, do you still have that 26cm housing??

 

Thanks chaps.. I was starting wonder if the H1E was too big and I should go with the HX35? But form what I am hearing I will get good spool and room for more power if I port at a later date.. I will probably get oil lines made so that shouldn't be a problem! Is the engine side imperial then? how odd?! When you say the V-band is off size what do you mean? How much is expensive? I need to get a downpipe of some sort first! Can you get an off the shelf one? Even if it will requires mods to fit.
Anyone got any experience with the Skyline RB26 motor? I will be building an RB30 conversion (3.0litre RB26). This is what first got me looking into the Holset. I am aiming for 600bhp on this one.. I have been recommended the HX40 with #16 exhaust by a few people. Can someone translate that into the H1E spec if possible as it sounds like the H1E is a bit more robust? Alternatively I need to get on a world forum for the skyline!

Thank you
Lee