Those who think holsets aren't proven please read!

[kp116]

Those who have read my previous posts and videos of my car know that the car has gone by best E.T. of 10.9. Earlier in the season the car was trapping mid 130's on around 33psi with the GM maf. Later in the season after upping the boost and switching to SD with a more agressive tune the car ended up trapping a little less. Well tonight I found out why...

For the new set up I wanted to swap on the BC springs and retainers just because I have heard some horror stories and I didn't want to take the chance with the new set up. Its cheap insurance...

So I began to swap out the BC springs with the new FP beehive springs I got. After taking out the two springs for the intake valves I noticed it was really hard to move the two intake valves on #1 up and down. So me and peepers decided to pull the head and of course both valves were slightly bent and broke one valve guide.

Previously in the season around summer time I horribly over revved the engine at the track and broke a lifter. The first thing that came to my mind was great... Valve float and bent valves. But the car still ran great after replacing the lifter ect.. so I didn't pursue any further.

So in conclusion half of the season on the hx40 and the times I was running was all on a bent intake valve! The 470whp on benchmark tunings mustang dyno with low boost (33psi) and a shitty tune with a gm maf. The 10.9 run. The numerous times driving to the track and trapping 130+ all done on a bent intake valve.... So needless to say there was ALOT left in the car.

I would post pics but my camera died so hopefully I will get pics up tomorrow!

 

[dsm-onster]

You didn't have high dollar valvetrain! You fail! your holset FAILS!

 

[kp116]

You didn't have high dollar valvetrain! You fail! your holset FAILS!

Well when your only revving to 7500rpm I hope I wouldn't need some uber expensive valve train! This seasons set up is a little different though.

 

[diambo4life]

What's the point of this thread again? You are basically doing the exact thing I keep reiterating that a lot of Holset owners do, ie. Saying their car could have gone faster if blah blah blah.... Whether it's justified or not, it's redundant. I'm not interested in that excuse-giving nonsense. Fact of the matter is, you didn't go quicker than a 10.9 ET with your HX40. I don't know what your best trap is since you intentionally obfuscated it by using some general statement. Fix your car, and go faster if you want to impress some of us skeptics.

PS: Some of us are not saying the turbo is crap. We are stating that it's being over-hyped.

 

[toofast82]

I will say though this guy's holset car is one of the guy's cars that run's very good, especially for a bolt-on housing. He has a very realistic setup and obviously can drive some.
Most Hx40 cars have not netted the high 10s like he has

 

[doesitonall4rs]

Thats a good time for a ####ed up car and only 33psi! Consider me impressed, all these holset bashings really makes me want to upgrade to an hx40 pro!

 

[dsm-onster]

What's the point of this thread again? You are basically doing the exact thing I keep reiterating that a lot of Holset owners do, ie. Saying their car could have gone faster if blah blah blah.... Whether it's justified or not, it's redundant. I'm not interested in that excuse-giving nonsense. Fact of the matter is, you didn't go quicker than a 10.9 ET with your HX40. I don't know what your best trap is since you intentionally obfuscated it by using some general statement. Fix your car, and go faster if you want to impress some of us skeptics.

PS: Some of us are not saying the turbo is crap. We are stating that it's being over-hyped.

If you're not interested then why clutter the thread.

Mike also wasn't interested in the bolton hx40 that ran over 139mph in 2800lb car with a bolton housing and an compressor 4mm smaller than the 6262/35r at about the same boost. No overhype, it is what it is in a bolton housing. This is likely in response to a thread where it's been pushed off topic to 'the hx40 isn't proven as a +600whp turbo'. Yet there are 3 full weight hx40 cars in the 10s and 7 hx40 or hx35/40 cars trapping 600whp or better MPH numbers based on weight. This being one who did both. What's nonsense is the fancy use of verbage yet missing the point entirely that it's proven for well over 600whp even as a bolton. No dyno racing or bench racing.


Twofast82, yes that's the point. This is a BOLTON. . . It still net 10s with all the problems and being in a bolton housing not giving it as much breathing room other 10second turbos have been given.

 

[FLASH1970]

Nice to see a local guy doing some good things with a Holset setup. Get the head fixed and see what the setup can really do.

 

[DSM_PWR]

What's the point of this thread again? You are basically doing the exact thing I keep reiterating that a lot of Holset owners do, ie. Saying their car could have gone faster if blah blah blah.... ...

My point exactly!

I was hoping to finally open up a good holset thread

Its a good try tho and i respect that, but please post up again once youve gone back to the track and ran your time. Goodluck!

Im not saying its a bad time, just saying i'd like to see FULL results and not
"What could have been if i didnt have these problems"

 

[Talon2139]

Nice to see a local guy doing some good things with a Holset setup. Get the head fixed and see what the setup can really do.

+2

 

[jrohner]

What do you consider 'horribly over-revved'? I hit 9700 once a few years ago (3-2 shift, meant to be a 3-4 shift), and nothing bad happened.

 

[dsm-onster]

My point exactly!
. . .just saying i'd like to see FULL results and not
"What could have been if i didnt have these problems"

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No one said "what could have been done". Fact is the bolton turbo made 10s and 600whp trapspeed based on weight with the problems present. Clearly proving the turbo is a 600whp bolton unit. IF you can't get out of YOUR head what the turbo COULD have done that's no reason to say anything negative about this thread.

 

[habitatguy187]

Holsets suck guys, if you have one you should sell it to me uber cheap so that I can dispose of it properly.

 

[viperlp01]

Don't buy holsets guys... Seriously they suck.. There are no good threads on them and the guys are making up results.. They are weak turbos and can't possibly run 10s with 3.5 cylinders...

 

[toofast82]

Although the OP has proven 10s in a bolton housing for sure. He has gone through a few of them though that i've read

 

[DSM_PWR]

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No one said "what could have been done". Fact is the bolton turbo made 10s and 600whp trapspeed based on weight with the problems present. Clearly proving the turbo is a 600whp bolton unit. IF you can't get out of YOUR head what the turbo COULD have done that's no reason to say anything negative about this thread.

So your telling me that this thread was not AT ALL, hinting that with the fixed problems, it could have ran faster?

What negative thing did i say? other than hoping to read a good thread?
I clearly said "Goodluck" and to post up the results once he goes back to the track...

I get it, he ran a 10.9 @ Mid 130s... goodjob, now fix the problems and impress me with that 9/10.0 sec time slip

 

[dsm-onster]

You said "my point exactly!" and quoted Diambos negative input to this thread

The results still speek plainly that the hx40 is a 10second turbo in bolton form and 600whp capable based on the only consistant whp determination, trap/weight numbers.

Of course the turbo can do more. He said more was in it. But he didn't infer how much. Saying I could do X if Y didn't happen. No bench racing. Clearly there's more on the table, but bottem line this what the turbo can at least do. Period. If you're still wondering what CAN be done maybe you don't really have so muh of a problem with guys saying I made X results but could do Y if this didnt happen. . .

. . . Regardless, the BOLTON hx40 is a 10second +600whp turbo. End of arguement. No "what ifs" for this. This thread did NOT say, "Well I could have run a 10 and made 600whp if. . ." It DID run a 10 and DID net over 600whp based on the true determination of power (of which Diambo and many of us only accept), MPH/weight. So you agree with Diambo's negative input how exactly?

Although the OP has proven 10s in a bolton housing for sure. He has gone through a few of them though that i've read

He blew up one used one and never put another back on from what I know.

 

[DSM_PWR]

Like i said:

I get it, he ran a 10.9 @ Mid 130s... goodjob, now fix the problems and impress me with that 9/10.0 sec time slip

When OP Posted thread Title as "Proven" i took it as proven from all the hype that they're just as good if not better than turbos like the 6262/3586. I saw someone post that HX40 flows 70lbs/min which outflows the 6262 i believe...

My mistake for taking it as the wrong "Proven" way...

EDIT:

.

Quite Ninja Editing all your posts... makes it annoying to keep having to re-read your posts everytime...

 

[toofast82]

He blew up one used one and never put another back on from what I know.

I'm pretty sure he's blown another one too. I believe I read this here or the local ChitownDSM forum

 

[dsm-onster]

The hx40 pro has a 68lb/min at 60% efficiency on the compressor map. A compressor flows below 60% efficiency.

Holset has the rated flow at 0.53kg/sec for the highest flowing hx40 compressor. 0.53 X 60sec/min X 2.2046lb/kg = 70lb/min.

See my other recent thread on hx35 and hx40 compressor maps for the official holset/cummins documents and explainations.

 

[AndrewD5418]

What do you consider 'horribly over-revved'? I hit 9700 once a few years ago (3-2 shift, meant to be a 3-4 shift), and nothing bad happened.

On stock valvetrain? Doubtfull..

 

[skatershawn]

Don't buy holsets guys... Seriously they suck.. There are no good threads on them and the guys are making up results.. They are weak turbos and can't possibly run 10s with 3.5 cylinders...

im not trying to argue with you on this but i haven't seen any real data that states they suck but from people that just don't like them!
Maybe its because theres guys out there that spent $1200 on a turbo setup alone, then you got beat by a guy that bought a hx40 and spent maybe half what you did, and your jealous... im not sure!
but ive heard and read numerous good data about the holsets!!

But there is a point... he did say proven in the title which got my attention, then come to read it and there wasnt anything really proven! Im not trying to dispute his post, im just saying, i have plan in my future in getting one aswell!!

To the OP... FIX the damn thing so you can come back and actually PROVE these holset haters WRONG!!!
GOOD LUCK... im cheering for you!

 

[dsm-onster]

Pretty sure he was being sarcastic

He proved a bolton turbo can run 10s and net a +600 trap speed. See the haters say no wee need to see low 11s and logs of spool speed. It gets shown. Then they say no we need 130MPH+ trap speeds with 3000lb cars. It gets shown. Then they say we need 10second cars with mid 130s trap speed and it gets shown. Now they say nope you have to beat a non-bolton turbo on a shop car with less weight and a profesional driver. . . Meanwhile reality is already evedent, no one who has a gt35r and is in the same weight and is not a profesional has done more with a bolton. Rice has a certain odor. Stickers have a certain look. This turbo costs half as much installed as comparable turbosand is backed by real world results that it does reside in the range of flow intended. It's simply a 600-700whp turbo even as a bolton. Some would argue with the truth itself (10s by 3 cars, 130+ by 7 and all trapping speeds that match or exceed 600whp based on their weight; no shop cars) to ease their personal dilemas.



These turbos ore only 600-700whp turbos. And he scored right in the middle of 600-700whp. Also there's a 690whp car with the bolton volute who has MPH/weight numbers to back it. How many bolton turbos 56trim/gt35r compressor or not have produced that result?

 

[kp116]

Although the OP has proven 10s in a bolton housing for sure. He has gone through a few of them though that i've read

Same housing and turbo all year long....

I didn't make this thread to bash on any other turbo or to say that a holset is the best... I already have another turbo for this season and its not a holset... But after reading this thread I am debating about picking up another hx40 with the bep housing and prove what it is capable of.

I just made this thread because me and Peepers were shocked when we pulled the head off and I thought it was awesome! I thought the title would get peoples attention and it seems like I was right.

If anyone can find a hx40 pro and also a bolt-on housing please P.M. me!

 

[Cassera]

It is proven to do high 10's. Now when he does fix it and makes a post saying its proven doing low 10's this time, people will still say it's not proven. I think the only way is to get it to do 9's.