Anyone racing a 1HZ/1HDT/1HDFT or 1HDFTE??

[CustomTurbos]

If so send me a PM, I am looking for a good outfit to sponsor with a turbo. Please only contact me for this if you have a serious rig.

[ledgend80]

you should pm zoltan he is in your neck of the woods

[CustomTurbos]

Thanks, yes I know Zoltan but while I did say 1HZ, my primary interest is a 1HD-x due to being direct injection, handle heat better and more applicable to where my turbos are aimed. I will do a few 1HZ kits but not really my current target.

If it turns out that there arent any 1HD-x contenders I will consider the 1HZ's. I am a bit suprised how little there are - most seem to be in Patrols.

Cheers, Graeme

[96cruiserute]

where abouts in perth are you ?

[CustomTurbos]

where abouts in perth are you ?

I'm in Hamersley (Near Carine/Warwick/Balcatta). You can send a PM and I will provide details etc. Regards, Graeme

[Mosko111]

Mate I'm in Central Queensland and there are bugger all Turbo diesel cruisers competing! Only decent one I can think of is the old Jonny Track about rig, but it was a 1hz I'm pretty sure, a bloke over here was looming to try and build up a newer diesel engine in a cruiser but he hasn't started yet.... I've got a 1hz in a 75 series cab on 80 series chasis but have been naviing instead of racing it....

If you don't mind sharing on here, roughly what type of hp can be achieved with one of your set ups? If you would rather pm that's cool!

[Mosko111]

Oh there is another with one of the 1hd-x not sure which one, it was in a 79 series coil all round rig, bit I thinks it's in the process of being pulled out because they could t get enough power out of it, A.D.A.M.S was the name on the doors of it if anyone else knows the truck I'm talking about,

[perko88]

Yea Mosko, thats hutchy.... Or Adam. 79 1hd-fte. Been pretty quiet lately but has a decent set up and knows his stuff

[CustomTurbos]

Mate I'm in Central Queensland and there are bugger all Turbo diesel cruisers competing! Only decent one I can think of is the old Jonny Track about rig, but it was a 1hz I'm pretty sure, a bloke over here was looming to try and build up a newer diesel engine in a cruiser but he hasn't started yet.... I've got a 1hz in a 75 series cab on 80 series chasis but have been naviing instead of racing it....

If you don't mind sharing on here, roughly what type of hp can be achieved with one of your set ups? If you would rather pm that's cool!

the 1HDFTE's are obviously very nice, but until someone can reprogramme the eprom, they are simply "potential" Some chips are great, I heard that the Unichip is very good, but never seen one. I own a 1HDFTE, so have a personal interest in getting them to go hard.

As for 1HZ and peak power, I (now this is an educated guess) expect that an ultra responsive and not inflated numbers 220-240whp should be achievable. By ultra responsive I mean loaded numbers of 16psi at 1400, 25psi by 1700 and holding 30psi to at leats 3k. For a lesser response, but still should get 30psi by 2000, hold 35psi pst 3300rpm. I expect ~ the 250-280 mark.

A 1HDFTE using the same turbos should do considerably more (at least 10%)

These are diesel only numbers, of course some water meth when needed wouldnt go astray.

I know you guys have some big numbers, but am guessing there are some instances where a broad powerband could give better times than outright power. Iam waiting on some testing to be done, I think we will have a 1HDT street tune with ~ 230whp on 35" tyres soon, maybe more. Getting vehicles dynoed always takes time and I am trying

[CustomTurbos]

Yea Mosko, thats hutchy.... Or Adam. 79 1hd-fte. Been pretty quiet lately but has a decent set up and knows his stuff

Perko, are you racing a 12HT?. These turbos suit those too, I just didnt expect anyone to race one. They have excellent potential. Is the injector pump stock internally - they can be made to outflow a 12mm VE pump with stock elements - because they have 9mm elements and a massive 10mm stroke!!

I actually have a set of 4340 rods made for a 12HT to use 1HDT pistons - using the 1mm OS 1HDT pistons, capacity comes out to 4.35L! There is one running in Perth like this as a daily (we only had 2 sets of rods made) - its in an 80 series!

[perko88]

Yea, I have started to race my 12ht 60 ute. Only did one local round this year though due to finances going elsewhere. Stock pump maxed out, front mount, stock turbo and manifold at 18-20psi. Also have water methanol injection kit sitting there for it. Obviously if I was looking at turbo upgrade would look at appropriate pump/manifold upgrades aswell but just havent had the time and money this year

[Z()LTAN]

If we can make ur turbo fit my car without messing up my intercooler or airbox Graeme im more than happy to push it to see what it can do.

[CustomTurbos]

If we can make ur turbo fit my car without messing up my intercooler or airbox Graeme im more than happy to push it to see what it can do.

Great :-) we can talk about it; I need to make sure your fuel pump can flow the neccesary fuel - 11mm plunger is a must, 12mm much preferred.

[80's_delirious]

If we can make ur turbo fit my car without messing up my intercooler or airbox Graeme im more than happy to push it to see what it can do.

Great :-) we can talk about it; I need to make sure your fuel pump can flow the neccesary fuel - 11mm plunger is a must, 12mm much preferred.

I may be wrong, but I thought all 1HZ had 11mm plunger and 1HD-T had 12mm plunger?

[Dzltec]

All 1hz pumps have a 10mm head, all 1hdt and ft have 12mm. I somehow think no one will ever crack the denso computer for a 1hdfte, nor denso computers for any diesel, I believe the software is just too hard to get into.

Andy

[CustomTurbos]

Exactly, there's no point fitting one of my highest flow turbos unless you have a 12mm plunger really ~ 140cc.

Of course, for an intercooled 1HZ at 14psi, no problem with a maxed out 10mm pump.

I drove my first 1HZ converted to turbo with my towing spec turbo. It is set for 10psi and does that from an indicated 55km/h in 5th (no smoke). It is a poverty pack manual 80 series without a tacho (had no idea they existed...) so I have no idea what revs that is, but seemed fairly low.

Not dynoed, but it "feels" like around the 70-80kW at wheels. Certainly its transformed it into a very nice drive where in the city it lugs nicely from low revs in 3rd. No rocket but very smooth, nice.

For those that check their EGT's, this one has the new sort that has a ~ 2-3mm fine tip and a digital gauge. it responds FAST. The owner gave me the probe and I drilled and tapped it into the centre of the collector pre turbo. Response could almost be described as "instant".

[rockcrawler31]

I"m running a comp rig with turboed and water intercooled 1HZ. Currently running a CT26 from a 7MGT-E but i don't really think it's suited to the engine real well. It's getting 14PSI at WOT and 4000RPM and boosts instantly (albeit with lower boost levels) with the throttle, but i suspect that there's better turbos out there for the engine as it could really do with more boost earlier giving it better EGT's in the 1500-3000 RPM range. Currently i feel it over fuels in those ranges leading to higher EGT's than is possible to achieve with more boost available to use the fuel being delivered.

If you're looking for a 1HZ hack to test on i'm interested, as this thing is here for a good time not a long time. I pretty much drive it like a rental every gear change.

I actually feel that the weak point with the 1Hzzzzzzzz isn't only the head but the stock cooling system's ability to cool the extra heat delivered. My cooling system is A1 but it's just not up the job once EGT's get over 400c Pre-turbo. I've just taken off all the AC equipment in front of the radiator and it's only just keeping up. They just don't have near enough surface area as compare to an 80 series.

[Z()LTAN]

Thats weird I sit on WOT for mins at a time and it never gets hot. Even got winch, hydro cooler and lights infront of the rad. U running the copper or plastic 79 rad?

[80's_delirious]

Milo, are you sure your turbo is the Supra one? I reckon it may not be. The supra turbo flows quite a bit more air than the cruiser CT26 which should help EGTs down.
I can help ID your turbo with some of the casting numbers on it if you can find them.

by the sounds of it though, you wouldn't go wrong with what Graeme is offering. I'd love to have the $$ to be able to bolt one of his turbos onto the 105series

[MADSHORT]

what could you do for a 3b diesel has a swhittzer on it ( yeah i know its spelt wrong but its wet out side)
could pull turbo of 1hdt and place on 3b suggestions
cheers
Gordon

[rockcrawler31]

Milo, are you sure your turbo is the Supra one? I reckon it may not be. The supra turbo flows quite a bit more air than the cruiser CT26 which should help EGTs down.
I can help ID your turbo with some of the casting numbers on it if you can find them.

by the sounds of it though, you wouldn't go wrong with what Graeme is offering. I'd love to have the $$ to be able to bolt one of his turbos onto the 105series

I'm only going from what was written on the side of it when i picked it up from a jap imports wreckers. I'm not at home at the moment but i'll get some numbers when i get back from Melbourne. I actually don't rate the W2A intercooler too, for low speed work the truck's not making that much boost/heat anyways, and at high speed work i'd say the FMIC would be much more efficient.

Thats weird I sit on WOT for mins at a time and it never gets hot. Even got winch, hydro cooler and lights infront of the rad. U running the copper or plastic 79 rad?

Yeah i'm no expert that's for sure, it's just my experiences and gut feeling with this set up.I'm running a 75 series 4 core copper radiator. Radiator/fan/system is in good nick.

Like i said, one thing i found with this turbo is that unless it's from dead idle there's ZERO lag. If you're cruising along off throttle there's no boost, and the very moment you apply the throttle it comes on boost all the way to redline. BUT, even with the boost controller wound right out it never gets past 14psi and usually sits on 11psi.

[KiwiBacon]

All 1hz pumps have a 10mm head, all 1hdt and ft have 12mm. I somehow think no one will ever crack the denso computer for a 1hdfte, nor denso computers for any diesel, I believe the software is just too hard to get into.

Andy

What's too hard with the software? If Graeme can get his new chip in and working I'm keen to get my hands on the stock chip and see what I can see.
No-one had remapped a zexel-nissan outside of europe until recently either.

[Dzltec]

I dont think anyone has the software or knowledge on changing the rom on the side of the pump, as this is set when on a test bench. I also believe that to do anything with the ecu is also very difficult, not impossible.

Does that mean that you have remapped a nissan with a zd30 engine now? How did it go?

Andy

[MENTAL4x4]

i pulled the 1hd t out of the 80 and put a turbo 6.5l v8 chev in

[MJ80]

enjoy your underpowered boat anchor, so many better, considerably cheaper and more modern conversions available.

Personally would have worked the 1HDT or dropped an FTE in there and pocket the extra 10K saved.

[Hamo]

enjoy your underpowered boat anchor,.

Gee thats abit harsh & he didnt deserve that. There is no critisizem in his post.

[Z()LTAN]

Welcome to outers

[MJ80]

enjoy your underpowered boat anchor,.

Gee thats abit harsh & he didnt deserve that. There is no critisizem in his post.

Your probably right,its not ment to be an attack, but theres not venom in what im saying, that is just exactly what that engine is commonly referred to as.

Sorry mental 4x4 but imo thats a very odd engine conversion why rip out a good TD like the 1HD and replace it with a Big, heavy, overpriced, outdated and underpowered one. With half the coin you could have made the 1HD go just as well or even dropped an FTE or Gen3 in there for the half the cost.

[Northside 4x4]

I dont think anyone has the software or knowledge on changing the rom on the side of the pump, as this is set when on a test bench. I also believe that to do anything with the ecu is also very difficult, not impossible.

Does that mean that you have remapped a nissan with a zd30 engine now? How did it go?

Andy

There is a company up in QLD that sells the Eproms for the fte's. I will see if I can find their details tomorrow.
We brought a couple off them a few years ago to try and they worked perfectly well. I just didnt like not being able to tune the car live on the dyno, so I didnt bother going any further with it.

[KiwiBacon]

I dont think anyone has the software or knowledge on changing the rom on the side of the pump, as this is set when on a test bench. I also believe that to do anything with the ecu is also very difficult, not impossible.

Does that mean that you have remapped a nissan with a zd30 engine now? How did it go?

Andy

Nissan YD22. Basically done as prep for turbocharging it, for curiousity and to see what improvements could be made.
It took a huge amount of brain-smoke, I didn't count the hours. But I've been able to make it do what I wanted with no turbo, 0-100 time cut by 4 seconds and drivability improved heaps. Disabling the EGR and the EGR flow correction in the software filled a hole in the low rpm range. The car is currently off the road with a dead fuel pump (the usual VP44 failure, not my fault). Fuel consumption is similar to before but average speeds are much better. It used to be very slow, now it's just slow.

I'll be doing a YD25 (not commonrail) next which uses the same ECU. Local nissan dealers have a ZD30 ECU floating around, I should grab that one too.

The VP44 pump ECU basically correlates the two solenoid positions (spill and timing) to degrees advance and mg/shot of fuel injection. The ECU requests mg and degrees, the pump delivers. I can interchange YD22 and YD25DDTi ECU's and the YD22 runs fine, the YD25 spits error codes but still runs and I suspect would only have half the power (I only drove it around the lawn).