The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Register Log in
Please Support STM Tuned
Please Support ExtremePSI

Holset Turbos, PART 7

This site may earn a commission from merchant
affiliate links, including eBay, Amazon, and others.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Status
Not open for further replies.
dsm-onster said:
"Once you get up there" ???? At only 19-20psi I was seeing 2lb/min more flow than the 16g at 22psi. with warmer ambient temps, same baro. Raising the boost would just push the 16g close to the limit. The holset has far more map. IF the spread is the same at 45psi who cares??? its still a huge difference. We all know the spread would be greater because the compressor responds to higher boost levels. Anyone who can read a compressor map can see that.

Not a bolton gt30r can show more power at the same boost. You didn't read that anywhere. . . from a credible source. Not with the same flow modificatins (same upgrade manifold, same exhaust manifold, same bore/stroke).

Most I've seen a bolton gt30r turbo do is 131mph trap with 3300lbs (brianawd). And he was running 33psi, with an fp exhaust manifold (which is proven to give higher trap speeds) and an extrude honed intake manifold, with I beleive fp2s (bigger than hks 272s. While at 28psi with a full weight 1g (3100lbs) has done 126mph with a stock 2g manifold and no extrude honed intake and the les topend happy hks272s by Mike1992. Brian was also running e85 with the tune dialed in for it. MUCH more timing. AND he was running MUCH more compression. . .

You will need more than what a bolton gt30r turbine housing can give for such high airflow. It's just what has to be done. What you do with that airflow comes down to your fuel/tune and CR/pumping-loss/etc. The bolton has net such a number before; it's been posted in these threads within the past 6months I think. You'll have to look back to see the actual logs. But they are infact already posted. I don't remember the boost. But no it was not outrageous.

Regardless, the bolton hx35 nets much better airflow at whatever psi vs. the e3 16g which you are coming from of you so choose to upgrade. If you go full garrett gt30r, you sure as hell better gain more airflow per psi vs. a bolton hx35. You will be paying out the ass for the hotside.
Click to expand...

I see. I just through gt30r as an example, I would never buy it though LOL.

Anyways I see what you mean, here is a log of a 2g fp3052 running 11s at 27psi:

You must be logged in to view this image or video.


For those who do not have v2 to view, it is running around 46-47lbs/min at 23-25psi, just showing it is a more than hx35 in BEP housing with a 121.8mph trap. Only saying this because I hear so much on how hx35 better than these turbos.

Also my log of 40lbs/min at 25psi, just did this pull once I filled up at the station:

You must be logged in to view this image or video.


I could still push turbo a bit more, but clutch will not hold.

Either way I plan on getting hx35, just not sure if I should get it in T3 BEP or mitsu housing, which is why I would like to know differences in both, since I have not found too much on T3 BEP housing.
 
Last edited by a moderator:
But again the bolton Hx35 has run 11s with higher trap speed and a pretty much full weight 1g awd at 1more psi all on stock manifolds. . . So I'm not sure how the above log proves the fp3052 substantially outflows the hx35 given the same setup and similar sub-30psi boost. It may very well be capable of doing it. But do we have a real comparison? What cams/manifolds/etc was run with that setup?
 
I was just posting log to prove fp3052 as I have not seen a log of a 2g running 11s on hx35. 1g I have heard of, but 1g is different than 2g, it is also lighter.

That fp3052 run was a full weight 2g with stock intake, stock 7 bolt, only bc272 cams with all other bolt-ons to run that turbo.

I'm not sticking up for fp3052 as I will definitely go holset route for sure, just trying to prove hx35, might have to do that myself since I have not seen any 2g runs running 11s.
 
Looks good. A basic rebuild looks like all it needs since it has a leaking oil seal.

jm1080 said:
I was just posting log to prove fp3052 as I have not seen a log of a 2g running 11s on hx35. 1g I have heard of, but 1g is different than 2g, it is also lighter.

That fp3052 run was a full weight 2g with stock intake, stock 7 bolt, only bc272 cams with all other bolt-ons to run that turbo.

I'm not sticking up for fp3052 as I will definitely go holset route for sure, just trying to prove hx35, might have to do that myself since I have not seen any 2g runs running 11s.
Click to expand...

Fp3052 runs a larger turbine housing. And you're pretty much forced to run a significant o2 housing upgrade. The combination can make a difference. If the fp3052 flows significantly more at lower boost, I don't know how much should be attributed to the turbine wheel, the turbine housing, or the o2 housing upgrade.

Logically, if fp wants you to run a better o2 housing, then there must be significant gains running a better o2 housing. I logged a bog difference swapping to an ebay tubular o2 housing with the 16g. I'm sure a larger turbo would sport a larger difference.

Either way, the fp3052 is an incredible turbo!!!! It's very impressive for it's size and being semi-bolton (still need that o2 housing upgrade). I wish it didn't cost so much more than other 52-57lb/min turbos to get it bolted onto your exhaust manifold :(

If the flow per psi is your concern, I'd hang onto the original turbine housing. And swap to that, if you arn't satisfied with the bolton housing. I know you'd be able to resell a bolton housing quickly and for good money for a used housing.
 
Yea fp3052 way too expensive for me, which is why I want to take this route. You are saying I can swap back to stock T3 housing, but have you had any experience with the T3 bolt-on housing? Is there a difference?

Tim's Turbos - Turbo Rebuilding - Steel Turbine Housing - T3 Inlet

That the one I'm talking about. Instead of using the huge stock hx35 divided housing.

It is also cheaper than the mitsu BEP housing. I guess I will try mitsu housing first because I just bought fp manifold, can't wait for it to arrive! :D
 
jm1080 said:
Yea fp3052 way too expensive for me, which is why I want to take this route. You are saying I can swap back to stock T3 housing, but have you had any experience with the T3 bolt-on housing? Is there a difference?

Tim's Turbos - Turbo Rebuilding - Steel Turbine Housing - T3 Inlet

That the one I'm talking about. Instead of using the huge stock hx35 divided housing.

It is also cheaper than the mitsu BEP housing. I guess I will try mitsu housing first because I just bought fp manifold, can't wait for it to arrive! :D
Click to expand...

Whoa whoa whoa! Where did this come from? Does anyone use this? It's not just cheaper than the BEP housing, you also don't have to spend a ton of money sourcing a v-band o2 housing.
 
98GSt_4life said:
Does this look like a good deal?
Click to expand...
Hey now- don't go stepping on the toes of certain turbo rebuilders who may have certain rebuildable turbocharger cores on their watch list with intention of bidding.

May the best man win. :D

joyfil2001 said:
Whoa whoa whoa! Where did this come from? Does anyone use this? It's not just cheaper than the BEP housing, you also don't have to spend a ton of money sourcing a v-band o2 housing.
Click to expand...
These ARE BEP housings, and Tim's website is so outdated that he not only has pricing listed from five years ago but housings styles listed that haven't been available for three years.
 
The .55 a/r t3 bep housing is the same thing as the .55 a/r mitsu housing WRT flow and spool; same volute different flanges. And yes. I don't think BEP is even making them any more. Unless they have those in stock from long ago, you're just going to have to run your nice FP exhaust manifold :)
 
dsm-onster said:
The .55 a/r t3 bep housing is the same thing as the .55 a/r mitsu housing WRT flow and spool; same volute different flanges. And yes. I don't think BEP is even making them any more. Unless they have those in stock from long ago, you're just going to have to run your nice FP exhaust manifold :)
Click to expand...

Ah ok, thought it was something new, so it basically is just a T3 flange but no other difference. Guess I will run my new fp manifold on mitsu BEP housing! Now I just need to find a cheap hx35 turbo :pray:

Thanks for the help/info too.
 
jm1080 said:
And yes I remember when you posted the difference at same psi level with a 16g, but once you get up there the only way to make power is with high boost like 40psi etc, when instead you can run a gt30r and run same flow with less boost. Now I'm not sure if this is true statement, but it is just from what I read, so not stating a fact here. Which is why I believe the stock BEP housing is so restrictive where you need real high boost in order to get to 55lbs/min or so. Which is the reason why I'm wondering about the T3 BEP housing.
Click to expand...

Since you are running e85, why does needing to run high boost to get more volume bother you? Since the Holset can hold up to the high boost, i dont see the problem.

Also, if you are considering the T3 BEP housing id suggest just sticking with the 12cm housing. It might look big, but its not laggy. Maybe Rampridersrider can tell you when his setup spools, but i was seeing 25psi around 3700rpm on my WH1C
 
jm1080 said:
That is more like it, but that is stock divided T3 from hx35 right? What is difference in the T3 BEP Housing?

Also what is spool at 20psi?
Click to expand...

Stock divided 12cm housing. The T3 BEP would spool probably 400-600 rpm faster I would imagine, no idea though. 20 psi on stock cams was at 4k rpm, 20 psi on FP2's is at 4200. 30 psi is at 4600 rpm.

donniekak said:
Which ebay manifold, the cast, or tubular? I'm wanting to go with the stock 12cm housing on my wh1c, but need to know what clears the block. I've talked to a few people with the bolton, and they all say its hard to get it to flow. It would also be an added benifit for future turbo's to free myself from mitsu flanged options.
Click to expand...

The tubular one, looks very simlar to this one. It clears the block/water pipe beautifully.

Mitsubishi 4G63 DSM Turbo Manifold T3 Eclipse Talon : eBay Motors (item 390180805449 end time Apr-16-10 01:34:54 PDT)
 
just called a few places.. theres a local shop that distributes there stuff that can get it to me cheaper then buying it direct from BEP.

only question i have now is, is there a difference between the 7 and 8 blade versions as far as spool and performance with the BEP bolt on housing?
 
So my HX35 in Mitsu housing seems to surge quite a bit at part throttle in higher gears. Running external 38mm on o2 and stock 1g bov. Any ideas on why this is happening? I posted before and got no response. 8-blade compressor btw. Thanks

98GSt_4life said:
just called a few places.. theres a local shop that distributes there stuff that can get it to me cheaper then buying it direct from BEP.

only question i have now is, is there a difference between the 7 and 8 blade versions as far as spool and performance with the BEP bolt on housing?
Click to expand...

The 7 blade flows 60lb/min, 8 blade flows 52lb/min. The bolt on housing is enough to max out the 8 blade but I don't think the 7 blade. As far as spool I think they're very similar, not entirely sure though.
 
Mine did that when I was using the 1g bov. I switched to a Perrin bov and the surging went away. I would assume that using a high quality bov would solve your problem. Or you could just deal with it as most do.
 
Hubbard 0 said:
I was quoted $279 from slowboy about a week ago.
Click to expand...
I bought one from the latest batch that BEP cast through G-Pop Shop; at the time, they were pricing at $259 externally-gated, $320 internally-gated, $18 shipping. Came in a little bit lower than through BEP directly.
 
GST95 said:
Since you are running e85, why does needing to run high boost to get more volume bother you? Since the Holset can hold up to the high boost, i dont see the problem.

Also, if you are considering the T3 BEP housing id suggest just sticking with the 12cm housing. It might look big, but its not laggy. Maybe Rampridersrider can tell you when his setup spools, but i was seeing 25psi around 3700rpm on my WH1C
Click to expand...

Oh because I'm still on strock internals except ARP headstuds, afraid of blowing stuff up after 30psi.

Also the stock divided T3 housing, how exactly you hook up o2 housing on it? Anyone have a guide of what they do to make stock divided housing fit on our cars?
 
jm1080 said:
Oh because I'm still on strock internals except ARP headstuds, afraid of blowing stuff up after 30psi.

Also the stock divided T3 housing, how exactly you hook up o2 housing on it? Anyone have a guide of what they do to make stock divided housing fit on our cars?
Click to expand...

Manifold pressure has nothing to do with the limits of your bottom end. Unless your tune is off, 50lb/min@30psi is going to stress your bottom end the same as 50lb/min@35psi.
I was running 35psi on my WH1C with a stock 135k mile engine. I didnt even have head studs.

You have to make your own o2 housing and/or downpipe.
 
GST95 said:
Manifold pressure has nothing to do with the limits of your bottom end. Unless your tune is off, 50lb/min@30psi is going to stress your bottom end the same as 50lb/min@35psi.
I was running 35psi on my WH1C with a stock 135k mile engine. I didnt even have head studs.

You have to make your own o2 housing and/or downpipe.
Click to expand...

QFT


I bought this flange:

Holset HX35 HX-35 exhaust downpipe turbo weld flange : eBay Motors (item 360250522735 end time May-06-10 18:03:41 PDT)

And mated my 02 eliminator downpipe to it via cut and weld. Lol.
 
Status
Not open for further replies.

Similar threads

Morphius
Holset Turbos, PART 9
8 9 10 11 12
Replies
299
Views
54K
JusMX141
JusMX141
Morphius
  • Locked
Holset Turbos, PART 8
37 38 39 40 41
Replies
1K
Views
140K
Morphius
Morphius
Morphius
  • Locked
Holset Turbos, PART 6
39 40 41 42 43
Replies
1K
Views
125K
Morphius
Morphius
Morphius
  • Locked
Holset Turbos, PART 5
37 38 39 40 41
Replies
1K
Views
139K
Morphius
Morphius
Morphius
  • Locked
Holset Turbos, PART 4
36 37 38 39 40
Replies
999
Views
119K
Morphius
Morphius
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top