Have any of you guys fitted a fuel Boost control valve to any of your turbo diesels? Any input on them?These pics are of one fitted to a 2H diesel in a 60s wagon. cheers gazza.
Fuel Boost Control Valves
- Thread starter bigbrowndog
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adjustable?
search grainger valve here in the diesel section. Lots of talk.
Common way on kits for 3B engines.
search grainger valve here in the diesel section. Lots of talk.
Common way on kits for 3B engines.
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Cheers BB thanks, I would not have guessed that one, LOL. We need a translator set up one day,LOL. Also known here as fuel enrichment valves or fuel enrichment aneroid.
Not sure how the fuel gets enrichened by it tho....
All I know is the grainger valve limits the boost pressure to the wastegate, hence delaying the opening of the wastegate and dumping exhaust around the turbine.
But I have seen the enrichment solenoid on on a few OZ sites. One for the AXT 3b kit was like 1500 bucks or something.....so can't be the same thing. A boost controller bought from a speed shop or ricer shop runs in the neighbourhood of 100-200 bucks. Some are in cab adjustable.
The grainger valve is a homemade version, using a ball and seat/spring set up. Increasing the pressure on the ball thru the spring will make the boost higher.
Ya between OZ speak and canukian chat and southern Mercan Hick we have many versions of english.
Cheers.
All I know is the grainger valve limits the boost pressure to the wastegate, hence delaying the opening of the wastegate and dumping exhaust around the turbine.
But I have seen the enrichment solenoid on on a few OZ sites. One for the AXT 3b kit was like 1500 bucks or something.....so can't be the same thing. A boost controller bought from a speed shop or ricer shop runs in the neighbourhood of 100-200 bucks. Some are in cab adjustable.
The grainger valve is a homemade version, using a ball and seat/spring set up. Increasing the pressure on the ball thru the spring will make the boost higher.
Ya between OZ speak and canukian chat and southern Mercan Hick we have many versions of english.
Cheers.
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- #5
Thanks, The pics I posted are from my son's mates truck.His Dad owned the truck before him and I believe the turbo has been on this truck for over 15 years, trouble free. In that setup the valve actually cuts fuel at lower speed and low boost giving more economy and lower EGT. I phoned Ray Hall Turbo's in Cairns last week and spoke to a lady there, after explaining what truck, turbo and exhaust I had the only info I got was" They are about $1,000.00 and they only fit AXT turbos ok" End of that conversation, so I have been trying to find more info on them. cheers gazza.
Tapage
Club 4X4 Panamá
bigbrowndog said:
wooouuu 15 years .. !!! is a garrett .. ?
bigbrowndog said:
jajajajaja usually I get the same answers overhere.
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Its known as a fuel aneroid here in Oz. My understanding of it is that it works the same way as a petrol rising rate regulator does. You keep your fuel setting stock, then when boost comes on for every psi of boost it will add an extra psi of fuel to compensate. This way you have the best of both worlds, when its off boost it provides the same amount of fuel as if it was atmo, when its on boost it increases the amount of fuel supplied.
For the life of me though I can't work out why they are so expensive for diesels, $1200 AUD is the price I have got on them when for a petrol car you can buy them for $400 AUD or so.
For the life of me though I can't work out why they are so expensive for diesels, $1200 AUD is the price I have got on them when for a petrol car you can buy them for $400 AUD or so.
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Too true , I cannot understand why they would say they only work on an AXT turbo when it fits on the fuel pump and it runs off the pressure from the high pressure crossover. It does work well on the cruiser pictured, it does not have a pyro but the exhaust is always pretty cool and the motor has not been touched for years apart from owner service.R2HKS said:
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bigbrowndog said:Too true , I cannot understand why they would say they only work on an AXT turbo when it fits on the fuel pump and it runs off the pressure from the high pressure crossover. It does work well on the cruiser pictured, it does not have a pyro but the exhaust is always pretty cool and the motor has not been touched for years apart from owner service.
That's crap about them only working with AXT turbos and has nothing to do with the turbo you run as you said this is a part that runs off the fuel pump, because Denco hear sell them as well as a separate unit. The girl from Ray Halls obviously didn't have a clue what she was talking about and I believe its an option for the AXT kit, not included in the kit.
I think such a device is unnecessary in my opinion...
Ah I understand what you are looking for,
I was just thinking a regular old boost controller. just a blocker for the wastegate.
Ya I do not know why you would need to be able to do that with your fuel. Once the max temp is set up on your biggest hill, I think your golden.......
Cheers. If you buy one of the thou's 1k inventions please post a thread up about it.
I was just thinking a regular old boost controller. just a blocker for the wastegate.
Ya I do not know why you would need to be able to do that with your fuel. Once the max temp is set up on your biggest hill, I think your golden.......
Cheers. If you buy one of the thou's 1k inventions please post a thread up about it.
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Yeah let me know if you buy one also because I'm in 2 minds about it. My personal belief is they would be a good benefit to have and enable correct fueling no matter what boost level or no boost.
However I have been told conflicting stories from some Aussie diesel experts. Berrima diesel, well known diesel tuning gurus say its not necessary. Speak to AXT however and they say whilst its not necessary it does improve the setup as I have stated above. Though @ $1200 I'm not sure I want to fork out for it. If it was say $400 I probably would.
However I have been told conflicting stories from some Aussie diesel experts. Berrima diesel, well known diesel tuning gurus say its not necessary. Speak to AXT however and they say whilst its not necessary it does improve the setup as I have stated above. Though @ $1200 I'm not sure I want to fork out for it. If it was say $400 I probably would.
I've been shopping too and decided against getting one.The positives are:better fuel economy (1-2ltrs/100kms)and more power(10%from memory).The negative is $.I don't need another 10% it IS a diesal truck and I would have to do about 100,000 kms to recoup the cost.I couldn't find out about engine life which is important to me.
crushers
post ho
shop around in the junk yards, the 2LTE has exactly what you are looking for. now that you mention it, i think i have one kicking around in the shop somewhere.
look for the early Prados...
HTH
cheers
look for the early Prados...
HTH
cheers
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Doesn't a 13BT have one? Also Wayne is that the only other engine you can think of that has a fuel aneroid? I'll have to search the wreckers to see if I can find any because they definitely have there benefits and as long as you tune it for good EGT's they won't make the engine any less reliable just give you the benefit of better fuel economy and fuel only when you need it. It seems like a win win to me.
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- #16
The engine life especially on the 2H must improve from the engine's head temperatures being kept lower also we all know where some of the unburnt fuel ends up in the sump.As my boy said you have never thought about driving your cruiser like he drives his and all the times I have been with him it never ran hot being flogged in high or low range. It is a 4 speed with a modified Fairey unit.But as you blokes say its hard to justify the Big$ for such a small part.aussie75series said:
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- #17
How about fitting it and giving a report back to the guys. Don't forget to back your fuel off to standard settings though. I was not aware they were on the other motor , will have to check that out during the week, might be the cheap way out. cheers: Dcrushers said:
Was forgetting, but aren't these all rotary pumps on these series of motors ? The 12HT has a similar set up from the manual but will not fit. The altitude sensor looks very similar to the photo at the begining of the post, has anyone got one of these fitted? Seems they would nearly work the same or in reverse.????
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crushers
post ho
it won't be any time soon but i will give it a try...
i did see them on another engine but in my fuzzy mind i can not remember which ones...
i did see them on another engine but in my fuzzy mind i can not remember which ones...
Here in Oz, the 1HZ was fitted with a altitude sensor from 0ctober 2002.
Theoretically it adjusts the fuel due to external barometric or altitude pressure.
Anyone know where it gets its info from, and would it allow for a positive pressure (below sea level) in the inlet post turbo?
Theoretically it adjusts the fuel due to external barometric or altitude pressure.
Anyone know where it gets its info from, and would it allow for a positive pressure (below sea level) in the inlet post turbo?
crushers
post ho
on the 2LTE there is a small line from the cross over, i suspect this is where it gets the reading for the boost pressure
