RB30 engine conversion (lots of pics) - Page 4 - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

R32 Combat · 17th April 2006, 07:34 PM

I will clamp it, thats why it runs so close to the engine mount. I'm not sure how yet, I'll have to see what I can find/make for the job.

R.I.P.S NZ · 17th April 2006, 10:43 PM

I'd be interested to know who sold you the crap adapter plate from Aussie. I sold a 4wd RB30 bottom end to a guy over there for his own use and it looks like he's copied it bady and is trying to sell them as his own design. Also I hear there are a few 4wd RB30 motors comming over from aussie, be carefull is all I can say, make sure who you deal with knows what they are doing.
Good luck with yours, it looks good for the most part....Rob

SteveN · 18th April 2006, 09:32 AM

Good thread Andy, ive not been on here much lately so this is first time ive seen it.

Nice one

R32 Combat · 18th April 2006, 08:47 PM

Thermocouples are now installed and should work ok. Obviously the cable ties will be replaced with something a little better, like bare tinned copper wire.

The reason for having so many is 2 fold.

1) I don't know how well my plenum will work, this should tell me.
2) When tuning an engine, its best to treat each cylinder as an individual engine, as they all run slightly differently.

This might seem overkill, but nows the time to do it..

Cord · 18th April 2006, 08:54 PM

Not overkill at all, something i wish i had time to play with. Sensor positioning looks good to, fairly equal length and not on the outside of any bends that would cause localised heating.

How far does the probe extend into the runner, and what kind of temps can they monitor/fall to bits at?

MarkFTO · 18th April 2006, 09:37 PM

Quote:

Originally Posted by Cord

Not overkill at all, something i wish i had time to play with. Sensor positioning looks good to, fairly equal length and not on the outside of any bends that would cause localised heating.

How far does the probe extend into the runner, and what kind of temps can they monitor/fall to bits at?

thats always my fear that a probe will break up and send a chunk of metal straight for the turbo. I bottled it on my install and put the probe post turbo which is far from ideal. Will be interesting to see how the exhaust gas temps vary.

R32 Combat · 19th April 2006, 06:10 AM

The thermocouples are inconel and measure upto 1100c but melt at 1250c. I chose 3mm dia ones. Although they read slower than say 1.5mm dia ones, they are less likely to break and that seems the STD automotive size.

They stick half way out into the manifold which I guess is about right.

My turbos already eaten a bolt, I just hope it doesn't eat these too..

Hugh Keir · 19th April 2006, 09:24 AM

I have run a 3mm Ø EGT probe before the Turbo on an earlier R33 GTR without any problems.

Your attention to detail is impressive, fingers crossed that all your hard work is repaid with some good results.

R32 Combat · 22nd April 2006, 03:06 PM

After another busy few hours..

Note how much the water jacket stickes out the side of the RB30 block. This caused the exhaust manifild to foul a little. To overcome this simply grind/file a bit off the manifold..

The exhaust is now mummified, twice in some areas.

Getting the manifold nuts on becomes a tad more difficult due to the increase on dia if the pipes.

Notice the silver heat wrap that runs inder the manifold. THats got the thermocouple wires in it. They are rated to 120degs C before they melt. You can get higher rated ones, but I think this will do.

Now the knock sensors. I simple ground/filed/stoned the 2 bosses flat and drilled/tapped them M8 making sure I didn't go too deep and enter the water jacket.

This is what the oil return pipe will look like when its finished. I've had a few teething problems in this area due to my insistance in having a large bore pipe. All the AN- fitting are small bore in comparison to the thread size. 5/8" is what in trying to use, but the pipe is so unflexable, it makes it real hard to fit. I need to make up a proper elbow as I can't buy one to suit my application.

Here is another(nearly finished) front view.

lightspeed · 25th April 2006, 12:06 PM

Did you port match the exhaust manifold to the gaskets/head.

My similar HKS T04R manifold is a very poorly shaped on the ports and the big steps will be getting ground before it's refitted. Some big steps

whoflungdung · 25th April 2006, 12:20 PM

This all looks great Andy

Is that a T51?

R32 Combat · 26th April 2006, 09:40 AM

Yes, its a HKS T51r turbo. A very robust piece of kit and idealy suited to the extra 400cc for the RB30

I've had a look at flowing the exhaust manifold where it meets the head, but it seems quite good already. It would be good if the manifolw had a more precise location method then the oversize hole, but I assume that allows for heat distortion.

The single throttle body mods are coming along well now. I've removed all the butterflys, plugged up the holes and smoothed out the inside.

I'll post up some more pics soon.

Yunis A · 26th April 2006, 10:33 AM

looking good andy!! will you ever run the car in anger, at pod or at a track day?? be nice to see how it performs

BTW, you built and engine with some quality bits, why use a cheapo radiator pipe from BQ???

R32 Combat · 26th April 2006, 12:02 PM

Thanks Yunis, in answer to your question about my choice of pipe, why spend money on stainless steel braided hoses etc when plain old copper pipe will do. I'm not a 'bling bling' person. If it works, then it will do.
There will be some more copper water pipes for the heater/block bypass pipes soon.

I will do a few drag runs in it later this year(if everything works ok). I can't run it on the track due to STDish brakes and a screamer pipe.

DaleHarrison · 27th April 2006, 08:24 AM

My god man, you certianly know your stuff! I would love to attempt something like this but after reading your thread about 70% of the stuff your talking about I have no clue what it does lol.... and I used to consider myself half knowledgable when it came to engines!

Better re-evaluate my opinion of my engine brain

17th April 2006, 10:43 PM	#47 (permalink)
R.I.P.S NZ GTR Register Member Join Date: May 2004 Location: Rotorua NZ Posts: 2,203	I'd be interested to know who sold you the crap adapter plate from Aussie. I sold a 4wd RB30 bottom end to a guy over there for his own use and it looks like he's copied it bady and is trying to sell them as his own design. Also I hear there are a few 4wd RB30 motors comming over from aussie, be carefull is all I can say, make sure who you deal with knows what they are doing. Good luck with yours, it looks good for the most part....Rob __________________ R34 GTR: Quickest street trim skyline in NZ, 9.7 @ 137 on 1st test pass, first meeting in the UK, 10.4 @ 144. 240z, WRH8.71 / 162 @ 2 bar, stock crank, full street trim 1972 240z, RIPS RB30, quickest/fastest Jap street car in NZ 8.71/162mph 2 bar, No NOS, street tyres. RB engine building, alloy and stainless fabrication, affordable skyline tuning and high capacity repowers, worldwide shipping arranged. e-mail rips@inspire.net.nz www.ripsltd.com

27th April 2006, 08:24 AM	#60 (permalink)
DaleHarrison GTROC Member #354 Join Date: Nov 2005 Location: East Sussex Posts: 1,034	My god man, you certianly know your stuff! I would love to attempt something like this but after reading your thread about 70% of the stuff your talking about I have no clue what it does lol.... and I used to consider myself half knowledgable when it came to engines! Better re-evaluate my opinion of my engine brain __________________ I've "Serious Performance'd" my R34 GTR ...and it's now for SALE!

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17th April 2006, 07:34 PM	#46 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,341	I will clamp it, thats why it runs so close to the engine mount. I'm not sure how yet, I'll have to see what I can find/make for the job.

18th April 2006, 09:32 AM	#48 (permalink)
SteveN GTR Register Member Join Date: Aug 2002 Location: Just off the M5/A40 Posts: 7,172	Good thread Andy, ive not been on here much lately so this is first time ive seen it. Nice one

18th April 2006, 08:47 PM	#49 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,341	Thermocouples are now installed and should work ok. Obviously the cable ties will be replaced with something a little better, like bare tinned copper wire. The reason for having so many is 2 fold. 1) I don't know how well my plenum will work, this should tell me. 2) When tuning an engine, its best to treat each cylinder as an individual engine, as they all run slightly differently. This might seem overkill, but nows the time to do it..

18th April 2006, 08:54 PM	#50 (permalink)
Cord GTR Register Member Join Date: Aug 2002 Location: RB Motorsport Posts: 1,565	Not overkill at all, something i wish i had time to play with. Sensor positioning looks good to, fairly equal length and not on the outside of any bends that would cause localised heating. How far does the probe extend into the runner, and what kind of temps can they monitor/fall to bits at?

19th April 2006, 06:10 AM	#52 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,341	The thermocouples are inconel and measure upto 1100c but melt at 1250c. I chose 3mm dia ones. Although they read slower than say 1.5mm dia ones, they are less likely to break and that seems the STD automotive size. They stick half way out into the manifold which I guess is about right. My turbos already eaten a bolt, I just hope it doesn't eat these too..

19th April 2006, 09:24 AM	#53 (permalink)
Hugh Keir GTR Register Member Join Date: Jul 2001 Location: Aberdeen Scotland Posts: 1,545	I have run a 3mm Ø EGT probe before the Turbo on an earlier R33 GTR without any problems. Your attention to detail is impressive, fingers crossed that all your hard work is repaid with some good results.

22nd April 2006, 03:06 PM	#54 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,341	After another busy few hours.. Note how much the water jacket stickes out the side of the RB30 block. This caused the exhaust manifild to foul a little. To overcome this simply grind/file a bit off the manifold.. The exhaust is now mummified, twice in some areas. Getting the manifold nuts on becomes a tad more difficult due to the increase on dia if the pipes. Notice the silver heat wrap that runs inder the manifold. THats got the thermocouple wires in it. They are rated to 120degs C before they melt. You can get higher rated ones, but I think this will do. Now the knock sensors. I simple ground/filed/stoned the 2 bosses flat and drilled/tapped them M8 making sure I didn't go too deep and enter the water jacket. This is what the oil return pipe will look like when its finished. I've had a few teething problems in this area due to my insistance in having a large bore pipe. All the AN- fitting are small bore in comparison to the thread size. 5/8" is what in trying to use, but the pipe is so unflexable, it makes it real hard to fit. I need to make up a proper elbow as I can't buy one to suit my application. Here is another(nearly finished) front view.

25th April 2006, 12:06 PM	#55 (permalink)
lightspeed GTROC Member Join Date: Jul 2002 Location: South-west Posts: 1,803	Did you port match the exhaust manifold to the gaskets/head. My similar HKS T04R manifold is a very poorly shaped on the ports and the big steps will be getting ground before it's refitted. Some big steps

25th April 2006, 12:20 PM	#56 (permalink)
whoflungdung GTR Register Member Join Date: May 2005 Location: NW England Posts: 1,980	This all looks great Andy Is that a T51?

26th April 2006, 09:40 AM	#57 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,341	Yes, its a HKS T51r turbo. A very robust piece of kit and idealy suited to the extra 400cc for the RB30 I've had a look at flowing the exhaust manifold where it meets the head, but it seems quite good already. It would be good if the manifolw had a more precise location method then the oversize hole, but I assume that allows for heat distortion. The single throttle body mods are coming along well now. I've removed all the butterflys, plugged up the holes and smoothed out the inside. I'll post up some more pics soon.

26th April 2006, 10:33 AM	#58 (permalink)
Yunis A Banned Join Date: Jul 2004 Location: Middlesex Posts: 1,758	looking good andy!! will you ever run the car in anger, at pod or at a track day?? be nice to see how it performs BTW, you built and engine with some quality bits, why use a cheapo radiator pipe from BQ???

26th April 2006, 12:02 PM	#59 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,341	Thanks Yunis, in answer to your question about my choice of pipe, why spend money on stainless steel braided hoses etc when plain old copper pipe will do. I'm not a 'bling bling' person. If it works, then it will do. There will be some more copper water pipes for the heater/block bypass pipes soon. I will do a few drag runs in it later this year(if everything works ok). I can't run it on the track due to STDish brakes and a screamer pipe.