Moderators Zedman240® Posted May 30, 2011 Moderators Posted May 30, 2011 +1 for that twin cam zed as everyone knows with that RB conversion I did. It would be great to retain the L series block though..I think this would be out of my reach but the L24 I have now gives me a nice grin when it opens up! Quote
bluerat Posted May 30, 2011 Posted May 30, 2011 Sorry to Hijack....I only said 432 as the rules last year were not 100% clear on running a twin cam engine in a single cam car, hence the 432, I've just found out they have changed the wording for this year. It can be any straight six, non turbo, from Nissan. OK carry on... Quote
260DET Posted May 31, 2011 Posted May 31, 2011 What makes you say that? The fact is the 240z/260z/280z has more listed in the FIA papers under group 4. The Z432 papers only have standard brakes listed I was being facetious, long running thing about all the factory option bits that can't be used in any current AU competition. Quote
PZG302 Posted May 31, 2011 Posted May 31, 2011 I was being facetious, long running thing about all the factory option bits that can't be used in any current AU competition. Not quite true. I can run any of the bits in the papers and more in 2B. The only problem being I need to run L series engine The only downside is a 40 year old car isn't going to beat a 2 year old car. Quote
PZG302 Posted May 31, 2011 Posted May 31, 2011 haha i wish it cost 10k the oil pump cost $2400 and the motor will cost me in parts close to 20k and all up it would cost 30k from scratch i no its mad but i wont a twin cam L series Ouch!!! That's my race budget for 4 years and a new motor Quote
peter mc Posted July 4, 2011 Posted July 4, 2011 arr small change of plans my old fj20t will be used for a while so i can race and have some fun .the nc 28 will continue to be built but only when i can afford to do it justice ... the fj is a full on race motor with argo rods forged pistons and lots of head work big cams and custom manifolds and makes lots of power it ran 9.9 140mph and made 400kwatw Quote
Sirpent Posted July 4, 2011 Posted July 4, 2011 Pete Don't be disheartened, sh*t happens and at least you wont rush it and take unreasonable risks, up side is it may slip into urban legend so to say for a while but will still knock everyone overboard when it eventually breathes life. Cheers John Quote
luvemfast Posted July 4, 2011 Posted July 4, 2011 Good idea mate. That NC 28 is going to take time and money. This way you can get some track time. And that FJ is a monster anyway! Quote
peter mc Posted July 4, 2011 Posted July 4, 2011 it sure is it was the fastest car i have ever been in 0 to 100 in 2.5 and a top speed that was terrifying Quote
peter mc Posted July 9, 2011 Posted July 9, 2011 hi all today's effort spent most of last night and all of today building a new manifold for the bw turbo ,its the turbo of the L28 and i have used the wast gate as well to save some money , i also made a new fuel rail for it as well, next on the list new dry sump pan and all the other part that go with the dry sump conversion Quote
Riceburner Posted July 9, 2011 Posted July 9, 2011 Wow that's a huge snail you're a wizard Peter, these a things average people wish they could do and you do it In a day! I take it this will be a track pig, nothing below 4,000rpm..... What sort of work have you done to the donk and what's redline? I'll be the first to ask for a video when this is up and running Quote
peter mc Posted July 9, 2011 Posted July 9, 2011 haha not much happens under 4 but it starts to hall about 4800 and red line is 9000 rpm the motor is as good as it gets, it has Argo rod and forged cp pistons 91mm bore ross balancer and a worked over crank the head is mad lots of work and big cams . runs about 30 psi of boost Quote
peter mc Posted July 9, 2011 Posted July 9, 2011 no it runs on E85, it ran on c16 in the old days and nos for racing,it made 400kw without nos and 500kw with a 250hp nos hit, and 98 for the street with 15psi it had 285kw Quote
benny Posted July 9, 2011 Posted July 9, 2011 ahh i see... any idea on when it will be finished?? Quote
peter mc Posted July 9, 2011 Posted July 9, 2011 soon i hope just have to fab the sump and the oil tank and put it all back together and put it in .... Quote
peter mc Posted August 13, 2011 Posted August 13, 2011 was thinking how did this head get all these mods when most people did not know about the chamber mods on the Rb26 its only been in the last 5 years that it was the the done thing , got me thinking as this head was built in the early 90s... so i made some phone calls, turns out it was a GMS head and it came with the the Del west valves and was fully ported and then it was modified by Les collins to fit the L28 . cool story gives me some motivation to finish the build Quote
luvemfast Posted August 13, 2011 Posted August 13, 2011 You getting back on the NC mate? Can't wait Quote
Six_Shooter Posted August 13, 2011 Posted August 13, 2011 I may have just missed it, but why go through all the trouble of fitting the RB head to the L-series block? What advantage does using the L-series block have, over the RB block? Quote
MaygZ Posted August 13, 2011 Posted August 13, 2011 I may have just missed it, but why go through all the trouble of fitting the RB head to the L-series block? What advantage does using the L-series block have, over the RB block? The challenge and the fun of doing something that hasn't been done properly before? Quote
Six_Shooter Posted August 13, 2011 Posted August 13, 2011 If you're just talking DOHC on an L-series it has been done before, using 3 4 cyl heads cut down: http://forums.hybridz.org/index.php/topic/54764-my-official-l31dett-rhd-thread/page__hl__dohc I've seen discussion before on using an RB head on an L-series block, but it seems most people also opted for the RB bottom end as well. So that's why I'm curious if there is some advantage to using the L-series bottom end, other than saying "I did it." I'm not knocking it, in fact I like projects like this, I was very close to mating "wrong heads" to a couple of my V6s, if it wasn't for the pushrods being in the way, I would have likely don it. Quote
luvemfast Posted August 13, 2011 Posted August 13, 2011 Shooter, this project was started in the 80's by local racer Neil Cartledge in conglomeration with the head of Nissan Motorsort in Australia. Twas an era before the interweb, so info was harder to get. But the premis was to use the 432 theory as a bit of a loop hole, so the Z could be more competitive with the Porsche's in the class. Basically, was an attempt to bend the rules to win races Noooooo, that never happens But for reasons, it never got finished, even though there had been lots of time and $$$$ invested into it. Come decades later, Neil was having a shed cleanout and was talking with an old mate, my dad. It ended up in my garage for consideration, but realized it was over my head. Was talking with Peter Mac on thd phone and it came up in conversation. Next going you know, Peter and Neil are in my garage with parts all over the floor, when they agree that we've found the right lunatic to complete this project. So it comes down to........ Coz I can!!! Quote
sco_aus Posted August 14, 2011 Posted August 14, 2011 Love this build Peter, wish I had your skills mate. Quote
maddos Posted August 17, 2011 Posted August 17, 2011 That's terrible mate Hope you can get what you're after for it. Quote
Sirpent Posted August 17, 2011 Posted August 17, 2011 A sad day Pete, if we can help somehow you know we are all just a phone call away. Quote
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