R.I.P.Snarling RB30 Engine Build Underway... - Page 4 - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

Conrad · 13th August 2008, 07:09 AM

Right then....

Time for a headgasket

Conrad · 13th August 2008, 05:19 PM

and then some new headstuds......

Coming next "the head"...

xaero1 · 13th August 2008, 05:38 PM

Quote:

Originally Posted by Conrad

Pistons & rods all laid out ready for insertion into the block.

I'm a little bit worried about the attention to your build quality here Conrad. It looks to me like there's a little more ink on the 3rd conrod so it may be unbalanced.

Unless you weighed them all after marking them of course

Nice build. Keep us up to date!

Howsie · 13th August 2008, 06:36 PM

^Indeed and the left one is broken already.

Conrad · 13th August 2008, 07:23 PM

lol at you two

You missed the main point though, theres only 3 rods, another weight saving measure

plumwerks · 13th August 2008, 07:27 PM

Interesting design,3 rods and 4 pistons,hmm.

Conrad · 13th August 2008, 07:39 PM

Now I could reveal the head specification but I'm not going to, sorry no pictures of the combustion chambers, squish or valves in situ but you can see the Tomei buckets.

However, I will say that a head of this specification "HAS" run a 7 second quarter mile in a drag GTR

Additionally, a slightly lesser spec one ran an 8.7 in a 240z

You get my drift..... lol

Anyway, time to fit it before someones sees the underside....

R.I.P.S NZ · 13th August 2008, 08:24 PM

Quote:

Originally Posted by Conrad

I will say that a head of this specification "HAS" run a 7 second quarter mile in a drag GTR

Additionally, a slightly lesser spec one ran an 8.7 in a 240z

Sorry Conrad, just a very slight adjustment to your wording.

A head of a very 'similar' specification (not sure what cams were in it at the time) has run a 7 second 1/4 in a drag GTR and an identicle spec head is used on our 1100hp 8.7 second street 240z.

Sorry, I just wanted to make sure everything was 100% fact

Rob

Conrad · 14th August 2008, 05:39 AM

No worries Rob, just because you know my head is better than yours lol

Conrad · 14th August 2008, 05:47 AM

Heres another picture of the head showing the ported inlets, its just a little insight into the quality of the porting work.

gtrlux · 14th August 2008, 05:57 AM

Forgive me my engineering ignorance: But can the Rods not be made of carbon?

GT-R Glenn · 14th August 2008, 06:13 AM

Can you speak , german, japanese and english ?

leeroy_25 · 14th August 2008, 01:11 PM

Well.. funny you should say that.. (Carbon Rods). I think it was played with in F1 before they got banned form using extravagant materials in the engines. I had actually toyed with trying to do a set for an engine as an experiment. I work in a company that make carbon parts for F1 cars strangely enough!! and we make parts for a couple of the engine suppliers!Maybe I will have a go one day. Just the cost of the tooling alone would be pretty high and the engineering of it would be pretty trick! Just material costs alone to make them would be a few hundred quid. let alone the labour cost and final machining. Also I am not 100% sure about the effect of oil on the resin and fibres.. could be it degrades the carbon over time resulting in failure. They would be best made using some kind of resin transfer process for repeatablity but hey that's another story! if someone would like to give me £10000 to prototype some I might give it a go!
Loving the build thread by the way. Haven't read all of it yet. but as I am planning an RB30 build myself it is good reading!

Lee

Stachi · 14th August 2008, 08:41 PM

Quote:

Originally Posted by GT-R Glenn

Can you speak , german, japanese and english ?

He's from Luxembourg, so he speaks Deutschelbourgish :P

Nice thread, I already love RB30's !

Marc

Conrad · 15th August 2008, 11:31 AM

Tomei cams already for install into the new head

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13th August 2008, 07:09 AM	#46 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	Right then.... Time for a headgasket

13th August 2008, 05:19 PM	#47 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	and then some new headstuds...... Coming next "the head"...

13th August 2008, 06:36 PM	#49 (permalink)
Howsie GTR Register Member Join Date: Feb 2002 Location: Surrey Posts: 6,850	^Indeed and the left one is broken already.

13th August 2008, 07:23 PM	#50 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	lol at you two You missed the main point though, theres only 3 rods, another weight saving measure

13th August 2008, 07:27 PM	#51 (permalink)
plumwerks GTR Register Member Join Date: Dec 2006 Location: Montreal, Canada Posts: 331	Interesting design,3 rods and 4 pistons,hmm.

13th August 2008, 07:39 PM	#52 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	Now I could reveal the head specification but I'm not going to, sorry no pictures of the combustion chambers, squish or valves in situ but you can see the Tomei buckets. However, I will say that a head of this specification "HAS" run a 7 second quarter mile in a drag GTR Additionally, a slightly lesser spec one ran an 8.7 in a 240z You get my drift..... lol Anyway, time to fit it before someones sees the underside....

14th August 2008, 05:39 AM	#54 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	No worries Rob, just because you know my head is better than yours lol

14th August 2008, 05:47 AM	#55 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	Heres another picture of the head showing the ported inlets, its just a little insight into the quality of the porting work.

14th August 2008, 05:57 AM	#56 (permalink)
gtrlux Registered user Join Date: Mar 2006 Location: with mom or in the garden Posts: 5,068	Forgive me my engineering ignorance: But can the Rods not be made of carbon?

14th August 2008, 06:13 AM	#57 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,227	Can you speak , german, japanese and english ?

14th August 2008, 01:11 PM	#58 (permalink)
leeroy_25 GTR Register Member Join Date: Dec 2006 Posts: 523	Well.. funny you should say that.. (Carbon Rods). I think it was played with in F1 before they got banned form using extravagant materials in the engines. I had actually toyed with trying to do a set for an engine as an experiment. I work in a company that make carbon parts for F1 cars strangely enough!! and we make parts for a couple of the engine suppliers!Maybe I will have a go one day. Just the cost of the tooling alone would be pretty high and the engineering of it would be pretty trick! Just material costs alone to make them would be a few hundred quid. let alone the labour cost and final machining. Also I am not 100% sure about the effect of oil on the resin and fibres.. could be it degrades the carbon over time resulting in failure. They would be best made using some kind of resin transfer process for repeatablity but hey that's another story! if someone would like to give me £10000 to prototype some I might give it a go! Loving the build thread by the way. Haven't read all of it yet. but as I am planning an RB30 build myself it is good reading! Lee

15th August 2008, 11:31 AM	#60 (permalink)
Conrad GTR Register Member Join Date: Jul 2004 Location: Yorkshire - Norway Posts: 262	Tomei cams already for install into the new head