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+--- Thread: Turbo HX 35 or HX 40 (/showthread.php?tid=5935)
Turbo HX 35 or HX 40 - mirza26 - 10-21-2014
Hi guys!
I am from Croatia and i work on my project.I put OM606 in my bertram 25 from "75 but not enough power.Tomorow i will send my IP(fromOM603) to Dieselmeken in Sweeden and he will open her with 7.5 mm parts.
My question is wich turbo to buy,HX 35 or HX 40.I saw on some videos that HX 40 is normal turbo to put but on dyno test he boost on 3200 rpm.Is HX 35 maybe little faster for boost on lower rpm?I need about 350 HP and faster torque
RE: Turbo HX 35 or HX 40 - raidaru - 10-21-2014
for 350 hp , hx35 is plenty,buy one with small turbine housing, you'll have fast spool. Hx40 is for 400-450 hp. Don't forget to tell Goran to adjust the pump for @350 hp, to much fuel won't do u any good, just a load of black smoke and high EGT.
RE: Turbo HX 35 or HX 40 - mirza26 - 10-21-2014
(10-21-2014, 01:06 PM)raidaru for 350 hp , hx35 is plenty,buy one with small turbine housing, you'll have fast spool. Hx40 is for 400-450 hp. Don't forget to tell Goran to adjust the pump for @350 hp, to much fuel won't do u any good, just a load of black smoke and high EGT.
Thanks for info,i will tell Goran to reduce pump to 350 hp becouse that power is more than enough and i dont need problems with overheating and EGT.
My priority is pull max power on lower RPM becouse it is important for speedboat acceleration.After 20 mph 250 hp will be enough to keep him on normal cruise speed.
How much boost to adjust on turbo?
RE: Turbo HX 35 or HX 40 - raidaru - 10-22-2014
Depending on the turbine housing, if u go for a small housing(quick spool) you won't be able to push them too far, bigger housing -> bigger low-end power , but slow spool. Anyway, depending on the turbo condfiguration, fueling, cooling etc their range is smwhere between 30 and 50 psi. I thing a small turbine housing will suit you best for a boat!
RE: Turbo HX 35 or HX 40 - mirza26 - 10-22-2014
(10-22-2014, 03:57 AM)raidaru Depending on the turbine housing, if u go for a small housing(quick spool) you won't be able to push them too far, bigger housing -> bigger low-end power , but slow spool. Anyway, depending on the turbo condfiguration, fueling, cooling etc their range is smwhere between 30 and 50 psi. I thing a small turbine housing will suit you best for a boat!
I send pump today to Goran.50 Eur is shipping to Sweden
.Find one commpany here in Croatia which is main dealer for Holset,Garett and other turbos and service man told me that i put HX40 for better results.He said that difference will be about 100-200 rpm better spool on HX 35 but with HX40 i have bigger low end power.He said that HX35 is for 300 hp max power and HX40 for 400 hp .Is this right??Price for HX 40 is 800 Eur and if i give him old turbo than i have 10% discount which is ok price for me.
RE: Turbo HX 35 or HX 40 - raidaru - 10-22-2014
https://www.youtube.com/watch?v=VNFAvPYvVKU he's got 350hp out of hx35. But, you could also buy the hx40 as it is perfect for a future power upgrade, u can modify rack travell on the pump and get more hp, or tell Goran to make the settings straight for 400hp, your choice man. However ask for 12cm turbine housing, it will spool faster. GL!
RE: Turbo HX 35 or HX 40 - mirza26 - 10-22-2014
(10-22-2014, 09:42 AM)raidaru https://www.youtube.com/watch?v=VNFAvPYvVKU he's got 350hp out of hx35. But, you could also buy the hx40 as it is perfect for a future power upgrade, u can modify rack travell on the pump and get more hp, or tell Goran to make the settings straight for 400hp, your choice man. However ask for 12cm turbine housing, it will spool faster. GL!
Goran told me that he will make her for 400 HP with 7.5 mm parts.I saw that video but he used 6 mm parts with HX35.Maybe they have HX40 with 12 cm housing.I must ask them,thanx for suggestion
RE: Turbo HX 35 or HX 40 - TurboTim - 10-23-2014
On a boat I would lean towards smaller. You want to be able to hold a lower slower cruising speed for economy and with a 40 you will be falling off of boost and falling off of plane. You may even want to go smaller then a HX35 unless you really dont care about cruising and just want to go faster for distances. If you went with a HX30 you could probably make your power goals and still have boost all the time.
RE: Turbo HX 35 or HX 40 - Hario' - 10-23-2014
The Holset man is trying to rip you off! ASure he tells you to buy a HX40 for 800 euro and you get a 10% discount by giving him your HX35, man you can sell that HX35 for 300 euro right now! Hell I'd buy it!
I don't think a 12cm3 HX40 turbine housing is available OEM so it won't be a better fit for your boat than the HX35.
RE: Turbo HX 35 or HX 40 - mirza26 - 10-23-2014
(10-23-2014, 07:21 AM)Hario The Holset man is trying to rip you off! ASure he tells you to buy a HX40 for 800 euro and you get a 10% discount by giving him your HX35, man you can sell that HX35 for 300 euro right now! Hell I'd buy it!
I don't think a 12cm3 HX40 turbine housing is available OEM so it won't be a better fit for your boat than the HX35.
I dont have HX35,my turbo is standard from 177 HP engine.Turbo is right now on the engine and ready to try but i don know is that good to make some tests with 7.5 mm pump on.Im afraid that to try,who knows what can happen??
(10-23-2014, 07:19 AM)TurboTim On a boat I would lean towards smaller. You want to be able to hold a lower slower cruising speed for economy and with a 40 you will be falling off of boost and falling off of plane. You may even want to go smaller then a HX35 unless you really dont care about cruising and just want to go faster for distances. If you went with a HX30 you could probably make your power goals and still have boost all the time.
Yes you right,i need power on 3200-3600 rpm,there i have normal cruising speed
RE: Turbo HX 35 or HX 40 - yankneck696 - 10-23-2014
My dad's 34' sports fish has a pair of 300 HP Cummins that uses H1C turbos. They have the same dimensions as the HX35W (12cm2 exhaust). I cannot see you needing any larger than that. HX40 would be a waste for you.
You would be better off with the H1c that is water cooled for safety.
I have been a marine diesel mechanic for 18 years.
Ed
RE: Turbo HX 35 or HX 40 - EDH_Performance - 10-24-2014
Could you go with a holset he351 turbo?
Hx40 with vgt
RE: Turbo HX 35 or HX 40 - mirza26 - 10-24-2014
I think HX35 wit small housing is enough to boost on low rpm.I need boost from 2000~2500 rpm.Must tell Goran to adjust pump to 350 HP.
RE: Turbo HX 35 or HX 40 - mirza26 - 10-24-2014
Can enyone tell me what is max power with stock turbo on this engine?
Turbo is KKK with triple screw flange.
RE: Turbo HX 35 or HX 40 - Petar - 10-24-2014
About 210-220 HP i think.
RE: Turbo HX 35 or HX 40 - Corkuin - 10-24-2014
(10-24-2014, 10:36 AM)mirza26 Can enyone tell me what is max power with stock turbo on this engine?A stock 606 turbo with 7.5mm should be about 225hp max. I have the same setup on my boat. I know a hx40 for sale but after reading this I think I also choose for a Hx35.
Turbo is KKK with triple screw flange.
RE: Turbo HX 35 or HX 40 - mirza26 - 10-24-2014
(10-24-2014, 03:44 PM)Corkuin(10-24-2014, 10:36 AM)mirza26 Can enyone tell me what is max power with stock turbo on this engine?A stock 606 turbo with 7.5mm should be about 225hp max. I have the same setup on my boat. I know a hx40 for sale but after reading this I think I also choose for a Hx35.
Turbo is KKK with triple screw flange.
225 HP is not enough for my Bertram 25,must go over 300HP for great results.
I saw on Ebay some chinese copy of HX35,any suggestions about?Price is ok
I never ask you this,my pump is 603 with 5.5 elements and stock turbo from 606.How much power is right now?Pump is on the way to Goran
Can wait to get her with 7.5 mm
Here is pic of my engine
![[Image: 2v8h4zl.jpg]](http://i59.tinypic.com/2v8h4zl.jpg)
Oil pan is bigger,about 12 lit,oil cooler and small pump for oil change,very practice
RE: Turbo HX 35 or HX 40 - TurboTim - 10-24-2014
Sweet! How did you make the water cooled housing! Looks awesome!
RE: Turbo HX 35 or HX 40 - DieselNuts - 10-24-2014
(10-24-2014, 04:35 PM)mirza26(10-24-2014, 03:44 PM)Corkuin(10-24-2014, 10:36 AM)mirza26 Can enyone tell me what is max power with stock turbo on this engine?A stock 606 turbo with 7.5mm should be about 225hp max. I have the same setup on my boat. I know a hx40 for sale but after reading this I think I also choose for a Hx35.
Turbo is KKK with triple screw flange.
225 HP is not enough for my Bertram 25,must go over 300HP for great results.
I saw on Ebay some chinese copy of HX35,any suggestions about?Price is ok
I never ask you this,my pump is 603 with 5.5 elements and stock turbo from 606.How much power is right now?Pump is on the way to Goran
Here is pic of my engine
Oil pan is bigger,about 12 lit,oil cooler and small pump for oil change,very practice
Within the Cummins diesel community, the Chinese knocks offs are considered junk, definitely a case of you get what you pay for.
RE: Turbo HX 35 or HX 40 - Petar - 10-25-2014
With the stock 5.5mm 603 pump you will get about 150HP, 170-180 if you turn up the full load fuel
RE: Turbo HX 35 or HX 40 - mirza26 - 10-25-2014
(10-24-2014, 08:36 PM)TurboTim Sweet! How did you make the water cooled housing! Looks awesome!
Tnx,in fact it cool only half of turbo.Maybe i give new turbo to make watercoled also.We have one old service man and he will do that.
RE: Turbo HX 35 or HX 40 - Alcaid - 11-08-2014
I can get you those turbos for 600EUR shipping included. brand new and genuine Holset off course
RE: Turbo HX 35 or HX 40 - mirza26 - 12-08-2014
Hi guys!
Pump is here with 7.5 mm Dieselmeken parts inside and i try it but standard turbo is too weak.My friend give me a Borg warner GM-8 turbo and i will put him to try.Wich turbo is similarly to this GM-8?Is this turbo good for this 3.0 liter engine?