Patrol Y61 2.8 Mods

[Mr K]

Sure will Rob.

Yeah I'm manual, was a bit confused but wondering if a cooler might be a decent idea :thumb2

 

[terranosaurusdoug]

Right, Big day tomorrow.

Trucks been getting run in for a couple of weeks and tomorrow is the big day. Going into MGT Motorsprts to get tuned. They are Skyline tuning specialists. Should be there possibly a week.

Holy crap, when did you fit the frankie and bennys??

 

[terranosaurusdoug]

Air box ready to fit to get rid of the maf.

How come you can get rid of the maf then mate??

 

[Mr K]

Holy crap, when did you fit the frankie and bennys??

You've lost me with that one haha :lol:lol

 

[Mr K]

How come you can get rid of the maf then mate??

Instead of the car taking readings from the maf for air intake, it will use a manifold absolute pressure or MAP sensor.

It will take readings from inside the inlet manifold and with the ecu it will be running (can't do it with standard) it can calculate by building up a map of air over rpm operating range and calculate fuel requirements.
This is where a good mapper comes in.

 

[terranosaurusdoug]

Instead of the car taking readings from the maf for air intake, it will use a manifold absolute pressure or MAP sensor.

It will take readings from inside the inlet manifold and with the ecu it will be running (can't do it with standard) it can calculate by building up a map of air over rpm operating range and calculate fuel requirements.
This is where a good mapper comes in.

Nice :thumb2

 

[Mr K]

Ok. Not good news, hit a major snag come time delay.

Seemingly hks do not make camshafts anymore for the neo engine. Can not get hold of one. There is another possibility to get another type but could take 6 to 8 weeks to get here.

With the amount of effort that has gone into this, never mind the money, to then fail at the final hurdle and have an engine that's not what it should be and at the speck it should be which could make or break the car is devastating.

If I get cams it won't be at the show on the 25th!

If I don't get cams I'd always be unhappy that it's not finished properly!

Can I find a cam that somebody has on the shelf. Highly unlikely. People don't keep stock on shelf.

Very much in a tricky situation now. Gutted!

 

[Jay666d]

As disappointing as it would be not to see your truck at the show... There's always other meets to see the finished article.

With as much effort as you have put in... I think we would all agree, the cams need to be done! :thumbs

 

[jims-terrano]

Don’t worry Mr K, better to finish it as you want it because the what if would be a right royal fur lined ocean going pain in the arse.

As long as you can still get there on the 25th:thumbs

 

[Davey Boy]

Yes, I agree it would still be good to see you there Martin:thumb2

 

[Mr K]

Thanks guys, my plan is to go to the show no matter what happens :thumb2

 

[Mr K]

Right. Development.

I'm getting cams no matter. Made that decision.

I've been talking to people in UK, I've been talking to people in Europe, I've been talking to people in Australia and I've even been talking to someone in Japan and finally I've found someone that has a set in America!!! (I was only wanting, or needing the intake cam but I will have to fit intake and exhaust now)

If all goes well, I was the only person to try and buy these as it was the only set they had, they should hopefully be sent on Monday on a 1 to 2 day delivery :clap

Will this happen?

I wont believe it until they are here but if they are here by Wednesday we might, might, possibly have a chance to do this but I'm going to have to pull out massive favours to get this done.

Fingers crossed but this is seriously stressful

 

[Mr K]

Ok defo not making it to the show with the truck.

As it stands........Not liking this company very much where the truck is getting the engine work :banghead: :surrender

 

[Mr K]

Ok thought I'd update where I am at this point.

As said above, not really enjoyed this tuning company at all. Supposed to have a very good reputation in Skyline world but they just didn't understand the truck at all. They spent ages looking for a problem that didn't exist. The truck runs a really big heavier single mass flywheel on the same principle as a tractor, the bigger mass rotation while driving will aid torque with the spinning mass but on idle it doesn't freely rev as fast as a small light flywheel that will rev high quick. They thought it had a problem, "it just doesn't rev right but seems ok on the road" :doh

Leave the bloody thing its fine!

They complained the way it drove, "it seems to wallow, don't like it"

It's not a bloody Skyline!!!! It's not lowered with stiff suspension and it doesn't weigh 1300kg. They just did not get it! :banghead:

And so it was. Hopefully just map the thing and get it out of there...

Didn't fit on the dyno properly, fans couldn't get high enough to cool, tyres getting too hot, boost pipes blowing off, but got there....


The end result was it struggled with boost fluctuations higher up the revs. Was aiming for 1.2 bar as any more and you have to change head gasket and wasn't going down that route. So 1.2 bar to begin with ten it petered out to about 0.7 bar. The end result being a power figure of 220bhp at the wheels. When I heard that I though that is sh*t.

Then after some research and roughly working it out, the troll loses a huge amount of power through the drive train and then the 40's also it kind of works out coming up for about, or nearly 100bp losses so really the engine was about 310 maybe at a guess. And I also thought the standard truck is 129bhp at the engine in standard guise, so 220 at the wheels running 40's aint so bad.

Then I started to ask why and what's going on. They done the boost control through the boost controller but why not do it through the ecu since I'm paying the money for the thing. I wont go into that conversation. This time, stuff the dyno, as had to wait for a weekend to get use of it and there was always a delay through snow, illness or holiday. Map it on the road in real time and real airflow.

This time, 1.2bar boost all the way through :clap About fing time.

They then did one last check before truck was good to go. All good, then suddenly....no boost....nothing.

Back in checking all pipework, all good. check turbo.... gone....seized.
Brand new turbo knackered, luckily no engine damage.

We think AET turbos make a cock of it which holds water as they checked the turbo themselves then built a new one and sent it free of charge but more time delay. Remember this was meant to be a one week turnaround, its been months.

Long story short though all back together, and does what it should. It has low boost and high boost settings at the flick of a switch, 1.2 bar all the way and at this point, running well. The ecu also has things built in like safety parameters where if the rad gets caked in mud and temps get too high it will gradually cut power and if really bad, go into limp mode to save the engine so wont do any damage.
With this setup no power figures as mapped on the road but should now be up at the 360+bhp range. Torque is not as low in the rev range as I would have liked but I'm only talking 500rpm where its boosting. Possibly the exhaust cam is at fault here but just running and testing to see how it behaves both on road and off road in low box will require time. I'll never use these guys again though.


Just got to try and finish this off now hopefully for the wales trip. A few mechanical things to do and a few more mods to sort and I think that will be it.

Fingers crossed

 

[terranosaurusdoug]

Awesome mate good stuff, shame about that company though! Also remember, nobody's truck is ever finished :lol

 

[Mr K]

Right, a few things to finish off before the truck is back on the road, hopefully before the Salisbury Meet the end of September.


Oil leak to fix
Fuel leak to fix
Raise engine idle rpm
Tidy up wiring
Re-do rust proofing
Gas struts on the back door
Re-gas of the shock absorbers
Air compressor and accessories
Fire extinguishers
A new c.b speaker
More work on wheel wobble, to fit an additional steering damper
Anti slip grips on pedals and possibly sliders
Fold down table on the back door
Winch setup, remote control, rope and hook
Second battery and split charge system for camping accessories, possible fridge and rear drawer setup.

 

[jims-terrano]

You aint got a lot to do then :lol

Your trucks great already mate :thumbs

 

[Banshee]

Ok thought I'd update where I am at this point.

As said above, not really enjoyed this tuning company at all. Supposed to have a very good reputation in Skyline world but they just didn't understand the truck at all. They spent ages looking for a problem that didn't exist. The truck runs a really big heavier single mass flywheel on the same principle as a tractor, the bigger mass rotation while driving will aid torque with the spinning mass but on idle it doesn't freely rev as fast as a small light flywheel that will rev high quick. They thought it had a problem, "it just doesn't rev right but seems ok on the road" :doh

Leave the bloody thing its fine!

They complained the way it drove, "it seems to wallow, don't like it"

It's not a bloody Skyline!!!! It's not lowered with stiff suspension and it doesn't weigh 1300kg. They just did not get it! :banghead:

And so it was. Hopefully just map the thing and get it out of there...

Didn't fit on the dyno properly, fans couldn't get high enough to cool, tyres getting too hot, boost pipes blowing off, but got there....


The end result was it struggled with boost fluctuations higher up the revs. Was aiming for 1.2 bar as any more and you have to change head gasket and wasn't going down that route. So 1.2 bar to begin with ten it petered out to about 0.7 bar. The end result being a power figure of 220bhp at the wheels. When I heard that I though that is sh*t.

Then after some research and roughly working it out, the troll loses a huge amount of power through the drive train and then the 40's also it kind of works out coming up for about, or nearly 100bp losses so really the engine was about 310 maybe at a guess. And I also thought the standard truck is 129bhp at the engine in standard guise, so 220 at the wheels running 40's aint so bad.

Then I started to ask why and what's going on. They done the boost control through the boost controller but why not do it through the ecu since I'm paying the money for the thing. I wont go into that conversation. This time, stuff the dyno, as had to wait for a weekend to get use of it and there was always a delay through snow, illness or holiday. Map it on the road in real time and real airflow.

This time, 1.2bar boost all the way through :clap About fing time.

They then did one last check before truck was good to go. All good, then suddenly....no boost....nothing.

Back in checking all pipework, all good. check turbo.... gone....seized.
Brand new turbo knackered, luckily no engine damage.

We think AET turbos make a cock of it which holds water as they checked the turbo themselves then built a new one and sent it free of charge but more time delay. Remember this was meant to be a one week turnaround, its been months.

Long story short though all back together, and does what it should. It has low boost and high boost settings at the flick of a switch, 1.2 bar all the way and at this point, running well. The ecu also has things built in like safety parameters where if the rad gets caked in mud and temps get too high it will gradually cut power and if really bad, go into limp mode to save the engine so wont do any damage.
With this setup no power figures as mapped on the road but should now be up at the 360+bhp range. Torque is not as low in the rev range as I would have liked but I'm only talking 500rpm where its boosting. Possibly the exhaust cam is at fault here but just running and testing to see how it behaves both on road and off road in low box will require time. I'll never use these guys again though.


Just got to try and finish this off now hopefully for the wales trip. A few mechanical things to do and a few more mods to sort and I think that will be it.

Fingers crossed

Wow I thought I had a lot to do before this meet but your list makes mine look like a trip to the newsagents :lol

Good luck with it all mate, I hope with all the grief you've had with the tuning company that everything goes smoothly, and now it's back in your capable hands the above list should be a breeze :thumb2

Can't wait to see it again dude, it was truly amazing last time, I'll probably pass out when I see it this time :naughty

 

[Mr K]

To be honest, the list is a little late going up, a good few things have been sorted by the end of last week.

Oil leak fixed. Worst fear was an engine out job where it seemed to be coming from back of engine somewhere.
Turns out it was the oil sump. To do the conversion you have to put the old 2.8 diesel sump on the skyline engine and move the dipstick for it to fit.
After cleaning it all and looking you could see the sump was not good. Taking it off and cleanig properly you can see how porous it had become.

Can you see the hole?

 

[Mr K]

Looked for a second hand sump but couldn't find one anywhere.

Looked for a new one but they are pricey to say the least :doh

So decided to patch this one. Hopefully should be good for a few years now