Turboed VH45 first competition drive!

[darinz]

In a word scary!!!!!!Scared myself, scared my co-driver and scared my wife who was watching!But the good things. Thepower derlivery is is very progressive and predictable. Good torque off the line and then it just keeps coming. I was able to drive 3 obstacles that no one else did and drove 2 stages no one else did. 2 days racing and no major dramas so pretty happy with the current performance.With how the power was, I will be doing a lot of driving to be able to use it. The acceleration is lot faster on mud and grass in this than in anything I ever driven on road and my DD is a Mazda 6 MPS (2.3 turbo).So far with the project, everything that I have researched about this motor (VH45) has been very accurate. ie 10psi reliable on stock motor, 530hp on stock injectors, good torque and plenty of revs etc etc.As it stands we aren't using the VVT and still only at 6000rpm but power derivery is smooth and constant. Top end has plenty to go but at present I can't see the need. Time will tell if I do go further.I'll try and sort out some photo's, dyno chart etc so people can have a look.

[Mettler]

Wow, awesome work man!

Any chance you'd share your tuning/maps with us? Would be great to see how you've done the fuel and timing to suit!

[gianavel]

Photos please!!!!!!!!!And vids if you've gottem!!!

Thanks for the data!Sorry if you already have put this in another thread. But what exactly are you running at the moment. Ie ECU, transmission, turbos etc.

Thanks And good work!

[Raxephon]

This wouldn't be your Patrol would it?

http://home.iprimus.com.au/pro...l.htm

[Mettler]

Nah that one's from aussie, darinz is from NZ, and he's running a big single turbs rather than twin spinners.

[darinz]

I have an Autronic SMC ecu and Autronic CDI ignition. It has a single T04Z and a 50mm external (HKS Copy) wastegate. Currently we aren't using the electronic boost control but it hits 10psi at 3000psi and holds that with 0.3psi creep through to 6000rpm. At that point the injectors (370cc factory) are at 87% so we aren't switching thecams as yet either. Intake temps were getting up to about 60*C so timing is a bit retarded due to that as well. I have a PWR 6x10 water to air IC (650hp) but the radiator I have is obviously too small so will be getting changed in the very near future.Still running factory compression so it will run on Avgas only (130 octane). We are thinkn about dropping boost bak to 8psi and then switching cams and upping rpm to 7000, but I'll learn to drive this as it is a real handful.The transmission is a RE403a (?) ie factory Q45, Patrol, etc auto. I was running thistrans been the previous turbo diesel I had. I gave this trans and the one from the Q45 to the trans shop and they used the relevant bits so that it bolted from VH45 to the Patrol transfer case. It as an Extreme Manual valve body from Wholesale Automatics in Oz fitted. This is quite an amazing valve body. I fitted it and you remove the accumulator piston springs and it doesn't control line pressure ie max pressure all the time. It is rated at over 600hp and the harder you change the smoother it is!I've got a few photo's and the dyno chart but don't have the hosted anywhere to link here, so if someone wants to do I'll email them to them.

[qsiguy]

Photos please!!!!!!!!!And vids if you've gottem!!!

Thanks for the data!Sorry if you already have put this in another thread. But what exactly are you running at the moment. Ie ECU, transmission, turbos etc.

Thanks And good work!

Ditto that, I've turbo'd my Q45 and am still working on the tuning. Any specific details you would care to share would be extremely helpful and we would be very greatful! Are you using an aftermarket ECU or a remapped OEM one?

10 PSI is awesome and 530hp on stock injectors is really cool. I thought I'd be pushing it to run 8 PSI. I might push it to 10 now that you've proven it will do it. Are you monitoring your a/f ratios with a wideband? Is your motor stock with some miles on it or is it a fresh rebuild?

Wow do I ever want more details! Please!

[qsiguy]

LOL posted at the same time. Thank you. Do you have any printouts of the timing and fuel numbers that are programmed into your ECU? Those numbers could be helpful in programming my ECU. Sounds like my 8 PSI goal is a good one since I do have the VVT and have a much higher redline. Might even take it to 7300 once I get it tuned.

I'd be happy to post anything for you, feel free to email anything to me. My addy is in my profile.

[darinz]

This motor is out of a Jap import 89 Q45 that I bought. It had dead suspension so I got it cheap. It had about 100k (km) on the clock and a broken timing chain guide when I got it. I have given it an oil change, new (steel) timing chain guides and new (colder) spark plugs. We had to fit a new cam sensor but otherwise it is as I took it out of the car. Tobe honest, I think I'd stay with 8 psi rather than 10 as my tuner recons we'll get the same power but a little higer up the revs and with more timing. My plan is to fit a 5-7psi spring and use the electronic boost control so that we can run lower boost most of the time.I don't have any sort of O2 sensor. A wideband is used for tuming and then the Autronic runs closed loop after that. The O2 is used to work out the engines VE and then MAP, TPS, air temp and water temp is used to calculate fuel and ignition. The ecu has data logging as well so we'll be checking real life data as well.

[Mettler]

This motor is out of a Jap import 89 Q45 that I bought. It had dead suspension so I got it cheap.

Haha you didn't buy that off farmstruck 4x4 in hamilton did you?

[darinz]

Sounds like the same car!!!!!!!I take it you had a look?

[Guishnu]

So is that 530hp at the wheels? Of a totally stock block?That's insane. Sorry to be bugging you for questions but:What turbo are you running to spool @ 3000rpm??What type of exhaust system are you running?Are you running that 530hp on av gas?

If yours does 530hp in that trim. I can't even imagine what mine is going to do with twin turbo's, pistons, inlet and exhaust manifolds, head gaskets and a built head.

It should be bloody amazing.

I can't tell you all how excited i am

Sounds like the same car!!!!!!!I take it you had a look?

[qsiguy]

Here are some photos Darin sent me to post. 279.7 kW = 375 hp BTW

[qsiguy]

Do you have any type of heat shield between that exhaust and the IC now? Looks like that would get heat soaked pretty quickly if not. That could help you keep your intake temps much lower IMO.

[Mettler]

Sounds like the same car!!!!!!!I take it you had a look?

Crackup! Yeah I checked it out like 2 years ago... how much did they end up letting you take it for? They didn't want me to have it for any less than $4k, so I bought their FGY32 VH41DE Cima halfcut for 800 bucks instead.

What have you done with the rest of the car? The IRS from that car would come in handy, and the front discs & calipers are all good too.

[darinz]

The turbo has been HPC coated and all the exhuast manifolds, exhuast etc has been wrapped. Everything else will also get HPC coated soon. There's a heat shield betweenthe exhuast and the cam sensor and also one between the waste gate and the fan. Those photo's were taken in about Feb so while the basic layout is the same, a fair few things have been tidied up.I also don't use the factory ignitors as the CDI control all that from inside the cab. It makes it a lot tidier as all I have is the plug's on the engine (all new replacements) and then all the wirings runs to a waterproof box inside the cab that holds the ecu and cdi. The joys of expecting to submerge the whole truck sooner rather than later. If you've seen any Winch Challenges you'll understand what I mean!

530hp is estimated flyway hp based on what was at the wheels and the tuners experience with tyre size, drive line losses etc on his dyno. He thinks it is more like 550hp, but when you take into account inject size 550 is a bit on the high side. 370cc at 85% is sipposed to be about 535hp, so we have a couple of thing giving similar hp readings.

I bought the car off them for $2k about 12 months ago. I think they got sick of it sitting around and just wanted it to go. I sold the turbo setup off the diesel I took out, to a guy in Te Kuiti for more than that. He meet me in Hamilton with cash so in reality I got the car home with cash in my pocket!To me that was good deal as I got to test drive it before buying and even though it had stuffed fuel that we had to drain and replace it still started and ran very well. Compression etc as all good and I had everything I needed to make it go. Only thing is, I changed my mind very quickly and went with and aftermarket ecu so didn't need all the other gear. The simplicity of the Autronic ecu and cdi is really agood option for the extreme environment it will have to work in. ie regulary under water and mud.

The rest of the car minus a few things is sitting in a paddock at my place. ie steering rack is gone, no bonnet, wiring loom has been hacked up a bit, dash is pretty well stuffed. I'm happy for it to go to a good home! Do you know of one???????????????

[darinz]

So is that 530hp at the wheels? Of a totally stock block?That's insane. Sorry to be bugging you for questions but:What turbo are you running to spool @ 3000rpm??What type of exhaust system are you running?Are you running that 530hp on av gas?

If yours does 530hp in that trim. I can't even imagine what mine is going to do with twin turbo's, pistons, inlet and exhaust manifolds, head gaskets and a built head.

It should be bloody amazing.

I can't tell you all how excited i am

I have custom exhuast manifolds that even though they are a log type would flow a **** load more than stock.The turbo is a Garret T04z with 1.14ar (I think but might be 1.15ar) so isn't really a small turbo. ie good for 850hp.The exhuast is 3"untill the muffler about 4"away. The waste gate pipe which is 2" joins just bfore the muffler.The muffler is a very small 3" straight through resonator (Coby type) with 4" pipe running from there and exits in front of the left side rear wheel. Youcould say it is fairly loud!!!!!!!!! But it is certifid, registered and has a current WOF so 100% road legal in NZ! But all over the WOF sheet they wrote 'competition vehicle'.It is tuned to run on avgas only. I ran short last week and had to put some 95 to get home, so I put 10l of 95 and a full 500ml bottle of octane booster in and it ran OK but I did drive it like a nana.

I have no imediate plans for bigger injectors as I have so much usable power now that until I learn to drive with this I have no need for more.

I think I've repeated myself a few time in this thread so sorry for that, I'm just trying to explain the results.

[Mettler]

The rest of the car minus a few things is sitting in a paddock at my place. ie steering rack is gone, no bonnet, wiring loom has been hacked up a bit, dash is pretty well stuffed. I'm happy for it to go to a good home! Do you know of one???????????????

Yeah m8, I know of a nice big workshop that would be a suitable new home for it! I can come up in a few weeks, check out your truck, talk V8s & petrolhead stuff, and take away the Q if that's cool? Let me know if this suits you... cheers!

[darinz]

Sounds like a plan. Gives me a call when you know what you are doing. 094361992 hm 021 330637cell.