boost compensator (1 Viewer)

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i plan to turbo my 1HZ this summer and was planning on fitting a injector pump boost compensator as fitted to the 1hd-t's. i assumed this would be a good thing however, turboglide says it's a BAD idea siting that "compensators are the single biggest cause of flat spotting and latter over fueling and subsequent engine damage." is this true? should i not bother?

:cool:
 
There is a bit of debate over here at the moment.From what I can gather from research is the compensater is actually for pollution and the side benefit is more power by decreasing fuel at lower revs and increasing at high revs and better fuel economy but this is offset buy purchase price about 100,000 kms to recoup cost.They cost the same as an air to water intercooler which is a better option for power and ? temp.Try Berrima Diesal for more info (Berrima Diesal is very well respected across the country)I would put in the link but I don't know how.
 
Hey greg! the HZ is running GREAT! Just hit the 100,000 mile mark and its never run better. Yes, the BEB's will be taken care of before the turbo. My cruiser will be coming off the road this summer for a new frame, FF rear, axle rebuilds, new seats, a rewire with a 12V circuit, BEB's and a turbo and hopefully IC if i have enough money.

I don't know what these compesators cost new from toyota but i found a denso unit out of NZ for about $230 US. I definitely expect to put atleast another 100,000 miles on this rig.


aussie thanks for the info!
 
I thought the turbo Glide advices are directly related to the amount od diesel on the chamber .. anycase, if you have a pyro you know how is your piston temp .. and how much diesel you can put ..
 
we just installed a Toyota factory turbo system off a ihz engine and installed it on a 1hd-t engine. the 1hd-t injection pump doesn't have a boost compensator and I'm worried the engine will run lean and melt holes in the pistons, is it possible to install boost compensator on the fuel injection pump?
 
Have you installed an EGT. Tune it to a low max temp and your golden.
Boost doesnt kill an engine your right foot does (over fueling and high egts).
You will be fine without one.
 
we just installed a Toyota factory turbo system off a ihz engine and installed it on a 1hd-t engine. the 1hd-t injection pump doesn't have a boost compensator and I'm worried the engine will run lean and melt holes in the pistons, is it possible to install boost compensator on the fuel injection pump?

I suspect you mean the opposite. Installing a 1HD-T turbo onto a 1HZ?

Only petrols melt pistons from running lean. Diesels run on the other side of the rich/lean temperature curve and get cooler with less power when they get leaner. Richer is hotter and black smoke means too rich.

Yes you can install a boost compensator. But given you should only be running low boost if you want your 1HZ to last then a fast spooling turbo will likely stop smoke anyway.
 
Yes we did install a e.g.t. setup, what kind of temps put me in the danger zone? I live in California and plan on driving at sea level where i live and going to the mountains aprox. 4,000 feet. this was all factory toyota parts and came with a "muffler" on the headpipe with a flex joint on it but the outlet points directly up at the pass. side floorboards. should i cut off the small muffler the flex joint and go to the muffler shop or should i leave it factory and have 2 mufflers? ( I already have a large downstream muffler). Thanks!
 
newtoyotatech said:
Yes we did install a e.g.t. setup, what kind of temps put me in the danger zone? I live in California and plan on driving at sea level where i live and going to the mountains aprox. 4,000 feet. this was all factory toyota parts and came with a "muffler" on the headpipe with a flex joint on it but the outlet points directly up at the pass. side floorboards. should i cut off the small muffler the flex joint and go to the muffler shop or should i leave it factory and have 2 mufflers? ( I already have a large downstream muffler). Thanks!

1000deg celcius
 
A 1HZ can stand 1000c (1832f)? I don't run my 4BD2 over 1250f, and that's only for short periods.

Doug
 
750C is the sane limit. An idi engine *might* survive 1000C for very short bursts but it'll be smoke propelled and the head will let go at some stage.
 

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