Holset Turbos, PART 3 - Page 30

GORBS88 · 06-22-2008, 09:01 PM

Quote:

Originally Posted by ceedawg

Damn GORB I was certainly looking forward to seeing you achieve more #'s. Sorry about the tranny!

Yah it kinda sucked, so unfortunatly i wont be able to get any more numbers for a few months.
I don't have the money for a shep trans right now so i will put another stocker in there and just take it easy on the street.

blcknspo0ln · 06-22-2008, 09:44 PM

Quote:

Originally Posted by GORBS88

Boost 29psi
Timing 17 degrees MAX
A/F 11.1
Fuel AVE gas 100 Oct
M13 nozzles with 50/50 meth

Are you running dual M13 nozzles?

GORBS88 · 06-22-2008, 09:58 PM

Quote:

Originally Posted by blcknspo0ln

Are you running dual M13 nozzles?

Nope sorry i am running a m10+ m3, should of been more clear.

dsm-onster · 06-23-2008, 04:09 AM

Mixing over 500whp and a stock tranny! After you replace the transmission, are you going to get her dynoed? (I hope)

ceedawg · 06-23-2008, 04:47 AM

Quote:

Originally Posted by dsm-onster

Mixing over 500whp and a stock tranny! After you replace the transmission, are you going to get her dynoed? (I hope)

Was'nt that the case with Steve's car? He had the stck tranny,never broke it,ran 11's.

Slippi84 · 06-23-2008, 05:00 AM

Yeah I think 500whp with stock trans is more like russian roulette though.

Steve93Talon · 06-23-2008, 06:28 AM

Quote:

Originally Posted by ceedawg

Was'nt that the case with Steve's car? He had the stck tranny,never broke it,ran 11's.

Yep, only problem with mine was old beat synchros that weren't happy about WOT 1-2 shifts toward the end. Tort's car was still on the stock trans running back to back to back 11.0s awhile ago. They're not as fragile as people seem to think.

Slippi84 · 06-23-2008, 06:33 AM

Quote:

Originally Posted by Steve93Talon

Yep, only problem with mine was old beat synchros that weren't happy about WOT 1-2 shifts toward the end. Tort's car was still on the stock trans running back to back to back 11.0s awhile ago. They're not as fragile as people seem to think.

Isn't 500whp more like 10.8 though. I know awddynamite(fwd 420a) ran 11.09 with 440whp.

ceedawg · 06-23-2008, 06:37 AM

Quote:

Originally Posted by Slippi84

Isn't 500whp more like 10.8 though. I know awddynamite(fwd 420a) ran 11.09 with 440whp.

They have guys running mid 11's with 360whp so I don't think HP always equates to times in reality.

Slippi84 · 06-23-2008, 06:43 AM

Quote:

Originally Posted by ceedawg

They have guys running mid 11's with 360whp so I don't think HP always equates to times in reality.

So true but I just figured someone like Tort is good enough that he could have went faster than 11.0 with 500whp which is what we were talking about but w/e.

GORBS88 how does the hx40 like the meth. I'm thinking about running that with my setup to alow me to run more boost.

dsm-onster · 06-23-2008, 03:22 PM

Tort was a "balls to the wall" driver. I bet he rev matched every shift and his syncros never saw the work

. 375+ whp with an AWD chassis should put you in the 11s. Too many do it for it not to be a given. 128+ mph with an AWD is DEFINATELY over 500whp. GORBS88 has a good thing going.

My h1c really loves pure water injection. Adding meth doesn't really do too much for it. Any more than running much lower octane isopropynol. The cool charge was a plus to my gut (insurance), but not to my loggings. It likes boost and is efficient already. So any knock retardant will help. Pure water is easier to come by and no real difference was noticed in this setup.

The hx40 is different, but the same engineering goes into it: diesel high load engine with surge issues, lots of flow neccesary to cap emmisions, and BIG boost to allow a smaller engine / lower rpms to be used for maintaining some symblance of fuel economy.

GORBS88 · 06-23-2008, 08:58 PM

Quote:

Originally Posted by dsm-onster

Mixing over 500whp and a stock tranny! After you replace the transmission, are you going to get her dynoed? (I hope)

HEHE, well for now i think i am going to put another stocker in but WITH a welded center diff.
Now with the welded center diff would that hold the power like a VCE and allow me to dyno FWD?
There is a dyno close by and if that welded diff would allow me to remove the t-case then i will dyno but if not then i will have to wait since there are NO AWD dynos around.

Just wondering if there would be too much stress on the center diff?

blcknspo0ln · 06-23-2008, 11:04 PM

Quote:

Originally Posted by GORBS88

Nope sorry i am running a m10+ m3, should of been more clear.

Sorry for being really OT, I just wanted to ask why the rational for running the extra nozzle? Was there a tuning stump you ran into? The reason I ask is because I have been contemplating on if I need to run a dual nozzle on my setup for over 28 psi.

on topic: anyone have a log of these hx40's? I haven't kept up on these mega-threads, but some of the numbers tossed around with this turbo are catching my eyes

T9S1i · 06-23-2008, 11:16 PM

gorbs i believe you can drop the t-case with a welded diff. I run one too and i was always under the assumption that you could.

Its either stock diff and you slap on a VCE to dyno in FWD mode, or you have a welded diff and you just drop the t-case and go.

I always thought what it would be like to drop it and drive around in WWD mode and do burnouts everywhere, it would be a fun way to get rid of some tires before i changed em out... haha

Slippi84 · 06-26-2008, 12:41 PM

What size wastegate are most of the hx40 guys using. My manifold is flanged for a four bolt style 40mm but Im wondering if it will creep at higher rpms as boost controll is very important because my setup is gonna be on the edge and too much boost will be VERY bad lol. I was thinking about picking up a 44 or 46mm v-band setup and replacing the 40mm flange with a vband hook up but I'm not gonna go threw all that is a 40mm off the collector will work. Here's a pick of my manifold just for reference.

andy4g63 · 06-26-2008, 01:36 PM

Most of the times, does not matter, how big WG is. The boost creep in most cases is due to manifold design, not WG size. But we all know that most of the designs are made, due to fitment/rad. power steering,etc/, so even if you have 60mm, you still might have creep. Recently I spoke with TIAL rep and he told me that. Your mani, looks similar to Full-Race for example, but it is safe to say that you might get 1-2psi creep, cause that WG tube is coming 90* off the collector, when it should be facing down towards the flow, to make it easier for exhaust gases to diverted to WG, instead going to the turbine wheel.

I have three cases:

myself with ERL mani Tial 44
two of my friends, one with Shearer T3, other one Full-Race T4, both with Tial 44.
All of us get a Little creep, mine is 1PSI, which is considered normal/ but I run only 22 psi. Theirs is like 3 PSI more in 4, than 3 gear/but both of them are race cars, running 38-39PSI/.

Mr Peepers · 06-26-2008, 09:01 PM

A major factor to creep is the target boost level. The lower the boost the more likely it is to creep.

Just a shot in the dark but I doubt you'll have any creep issues with an hx40 and 40mm external gate off the collector at anything over 15 psi.

1gDSM4g63 · 06-26-2008, 09:07 PM

Quote:

Originally Posted by Mr Peepers

A major factor to creep is the target boost level. The lower the boost the more likely it is to creep.

Just a shot in the dark but I doubt you'll have any creep issues with an hx40 and 40mm external gate off the collector at anything over 15 psi.

I second that, there is no need to go 44 mm or 40 mm wastegate. A 38 mm will be good for 40 psi of boost.

We're on Boost · 06-26-2008, 10:32 PM

Have you guys figured out, why is it that the HX35 compressor map shown a ways back in this thread shows max .38 kg/sec at PR of about 3, but on the Holset page for the HX35 they say "capable of providing up to 0.46 kg/s at 3.0:1 pressure ratio". Heck that's about 60 lbs/min. That compressor map looks awful funky and there are no efficiency numbers or rpm numbers on it. Do you know of a better compressor map around somewhere?

Gary