anyone runnning holsets? at like 35-40psi

[Mark90gst]

hey, just wondering if any of you guys were running holset like the hx 40, hx 35, hy35 t3. and i was wondering what you guys made for power, or how the car feels in general. I have a hy35 t3 setup and i like it alot, running about 35-40psi on it and the car rips on the street. just seeying what you guys have to say!

 

[zalama1]

I have holset HX 40. I still run at close to stock boost, since I have other Issue I'm working on. (No manual boost controller rigth now and original mitsubishi wastegate actuator)

I get 10 PSI at 3000 rpm with some load on, uphill or highway pull with 5. gear. Right now I need to get rid of stock ECU or get eeprom. I have raised the fuel pressure 10%, altered air flow with GM maf and SAFC for 780 cc injectors,
I have a boost creep problem, and I hit fuel cut at 6500 rpm with 15-20 psi. My real Hz are about 1700* 1.8.

Other mods are GM maf, 3" exhaust, air to water intercooler with short 2.5" lines.

Anyway I have the feeling this Holset has much more potential compared to my 16g ported turbo.

 

[GVR4592]

hey, just wondering if any of you guys were running holset like the hx 40, hx 35, hy35 t3. and i was wondering what you guys made for power, or how the car feels in general. I have a hy35 t3 setup and i like it alot, running about 35-40psi on it and the car rips on the street. just seeying what you guys have to say!

So is it 35 or 40 psi?

 

[AUTOMECH01]

i just got my HX-40 and i plan on running 35 to 45 psi of boost so ill let u kno it should take me about anouther 2 weeks due to i have to put my engin back in and put some breakin miles in it

 

[elementalwindx]

I have holset HX 40. I still run at close to stock boost, since I have other Issue I'm working on. (No manual boost controller rigth now and original mitsubishi wastegate actuator)

I get 10 PSI at 3000 rpm with some load on, uphill or highway pull with 5. gear. Right now I need to get rid of stock ECU or get eeprom. I have raised the fuel pressure 10%, altered air flow with GM maf and SAFC for 780 cc injectors,
I have a boost creep problem, and I hit fuel cut at 6500 rpm with 15-20 psi. My real Hz are about 1700* 1.8.

Other mods are GM maf, 3" exhaust, air to water intercooler with short 2.5" lines.

Anyway I have the feeling this Holset has much more potential compared to my 16g ported turbo.

I've got a eprom for sale Check out my classifieds.

 

[Coup D E'Tat]

This thread really bugs me.

Who runs "35-45" pounds of boost?

Oi.

 

[1993eclipseGS]

I had a Holset HX35/40 on the car and trapped consistant 130mph runs. That was on 29-30lbs of boost. It's a serious turbo imo if you have all the supporting mods..... I beat my buddies 12.9 car by 6 cars (from a roll race, In a private enviorment......), He coulden't believe it.

 

[autronicDSM]

Weak sauce! I run 50 psi on my biggie turbo stage eleventeen.

 

[1993eclipseGS]

I don't understand, But sure.

 

[elementalwindx]

This thread really bugs me.

Who runs "35-45" pounds of boost?

Oi.

Several guys locally to me run 35+psi on pt-67's and 35r's and such.

 

[timloomis]

Shep runs 55 on the 42r.

 

[autronicDSM]

Several guys locally to me run 35+psi on pt-67's and 35r's and such.

That's not what he meant. He was probably referring to a range of boost he runs. Seriously, who fiddles with their boost controller all the time and goes 35-45? I run 22psi all the time, not 20-30 psi.

 

[dnhieu]

where is the best place to get the holset turbo with the bullseye exhaust housing?

 

[1993eclipseGS]

dsmparts.com sells it.

 

[GVR4592]

Yeah I want to see a video of 40 psi on the street, that would be pretty sweet.

 

[Coup D E'Tat]

That's not what he meant. He was probably referring to a range of boost he runs. Seriously, who fiddles with their boost controller all the time and goes 35-45? I run 22psi all the time, not 20-30 psi.

Bingo

 

[Mark90gst]

hey how do you guys upload a vid? i will show you my car running 40+ psi of boost right on my laptop when it is hooked up to my aem, that will be true map sensor pressure. It is sick the car pulls awsome and that holset screams up top. other people in my area run around 45psi on gt40r or 35r, and all help each other tune them. of course they all have aem and 1600cc injectors.

 

[GVR4592]

It's not that we don't believe you, it just sounded odd the way you worded it. Ask anybody on here how much boost they are running and they will tell you the exact number, not a range of numbers. You can upload the video to a host site and link to it.

 

[steel_3d]

What kinda bottom ends, head gaskets and fuel are you guys running to keep things together at 30-40psi?

 

[GVR4592]

Pretty much any forged 4g63 shortblock will handle that amount of boost, if it is built and tuned correctly.

 

[Mark90gst]

my lower end is a ross/crower, no b/s, fully balanced with and o-ringed block, cometic hp or mitsu( i have used both head gaskets) and i ported head with good vavle train.

for fuel i run c-16 w/1600cc injectors, big fuel pump, lines.etc and for tuning it all aem ems.

 

[black91awdturbo]

which big fuel pump are you running in your car?

 

[compression]

It's not that we don't believe you, it just sounded odd the way you worded it. Ask anybody on here how much boost they are running and they will tell you the exact number, not a range of numbers. You can upload the video to a host site and link to it.

exept the evo3 16g owners, which usually say 15-21psi, (creep) or 21-26 psi ( falling boost)

i usually give a range of numbers but thats just because this little guy cant keep up with me

 

[40oz]

hey how do you guys upload a vid? i will show you my car running 40+ psi of boost right on my laptop when it is hooked up to my aem, that will be true map sensor pressure. It is sick the car pulls awsome and that holset screams up top. other people in my area run around 45psi on gt40r or 35r, and all help each other tune them. of course they all have aem and 1600cc injectors.

So, you mean, the reading of your MAP sensor is going to show 54.7 psi? Otherwise, you're only running 40 - 14.7 (approximate, depending on local conditions) = 25.3 psi of "boost", which is pressure OVER atmospheric, also known as gauge pressure. I'd really like to see someone run 45 psi of boost on a GT35R.

 

[GVR4592]

So, you mean, the reading of your MAP sensor is going to show 54.7 psi? Otherwise, you're only running 40 - 14.7 (approximate, depending on local conditions) = 25.3 psi of "boost", which is pressure OVER atmospheric, also known as gauge pressure. I'd really like to see someone run 45 psi of boost on a GT35R.

It doesn't work like that. The map sensor is affected by atmospheric pressure but not like you are thinking. At sea level a map sensor and a good gauge should read the same. At 5000ft it would be off by roughly 3 psi.