NISMO 46cc Heads inspected... to be installed \m/, ^_^ .\m/
01-21-2004, 12:11 PM
#42
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Well, this just went from exciting to ugly in about 2 min's. First off we pull the heads and sent them to our machine shop to R&R the valves. We now know the stock valves don't work and need to order a set from a VK45? WTF is a VK45? So that's the first part.... You also will need the retainers from the same and the Nismo valve springs as well. Now we still don't know if the stock Nismo cams will fit, but after the post from "Nathan", we are less than optimistic that they will. So for my car we will reassemble the stock heads after a P&P job..... but wait, it's now race season and they can't get to my heads for a couple weeks! Guess they will go back in dead stock..
So then I decide to go ahead and remove the rest of the engine to put in Forged Rods and 11.5 pistons for now...... but the pistons are .20 over and ..... it's race season. Basicly, it just sucks to be me...
So I will someday get the Nismo heads put together complete and throw them on a car, just not anytime soon. Expensive lesson learned.. Damn, so what can I do now that it's all apart... has to be some go fast goodie I can throw on it!
So then I decide to go ahead and remove the rest of the engine to put in Forged Rods and 11.5 pistons for now...... but the pistons are .20 over and ..... it's race season. Basicly, it just sucks to be me... So I will someday get the Nismo heads put together complete and throw them on a car, just not anytime soon. Expensive lesson learned.. Damn, so what can I do now that it's all apart... has to be some go fast goodie I can throw on it!
01-21-2004, 12:33 PM
#43
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Guess we'll just have to wait and see...I definitely want to see the amount of power you guys make going all motor, because I'm interested! Turbo...is the alternative...
01-21-2004, 05:46 PM
#45
Jeff & Jason
I get no satisfaction from saying " I told you so"
Dont waste your time Porting & Polishing your std heads & dont put in the 11.5 pistons just yet.
These new heads are the real Mc Coy. the flow chart I saw in Japan showed they flow just about as much as the full race JGTC Nismo race motor heads.
If you use these heads they will need new pistons to bring the compression down to around 11/1,
Do some research on this VK 45 thing.
I am just in the process of working out what valve length to get made for my heads & weather to use GTR type valve retainers so I can use shim pads for lash adjustment.
I get no satisfaction from saying " I told you so"
Dont waste your time Porting & Polishing your std heads & dont put in the 11.5 pistons just yet.
These new heads are the real Mc Coy. the flow chart I saw in Japan showed they flow just about as much as the full race JGTC Nismo race motor heads.
If you use these heads they will need new pistons to bring the compression down to around 11/1,
Do some research on this VK 45 thing.
I am just in the process of working out what valve length to get made for my heads & weather to use GTR type valve retainers so I can use shim pads for lash adjustment.
01-21-2004, 08:41 PM
#47
Originally posted by Nathan
Jeff & Jason
I get no satisfaction from saying " I told you so"
Dont waste your time Porting & Polishing your std heads & dont put in the 11.5 pistons just yet.
These new heads are the real Mc Coy. the flow chart I saw in Japan showed they flow just about as much as the full race JGTC Nismo race motor heads.
If you use these heads they will need new pistons to bring the compression down to around 11/1,
Do some research on this VK 45 thing.
I am just in the process of working out what valve length to get made for my heads & weather to use GTR type valve retainers so I can use shim pads for lash adjustment.
Jeff & Jason
I get no satisfaction from saying " I told you so"
Dont waste your time Porting & Polishing your std heads & dont put in the 11.5 pistons just yet.
These new heads are the real Mc Coy. the flow chart I saw in Japan showed they flow just about as much as the full race JGTC Nismo race motor heads.
If you use these heads they will need new pistons to bring the compression down to around 11/1,
Do some research on this VK 45 thing.
I am just in the process of working out what valve length to get made for my heads & weather to use GTR type valve retainers so I can use shim pads for lash adjustment.
there is only one way to find out... and we found out the hard way... we still dont know for sure about the cams (unless jeff found out more info after I left today) but as soon as we heard about the valves we were like forget it...
the stock heads are pretty damn nice... P&P wouldnt do much to them...
The VK45 valves would be nice though.. they are Titanium..
oh well... We will be putting the JWT cams in when we re-build the motor...
it kind of sucks how NISMO gives NO information on these parts.. even with the other NISMO stuff we had to find out.. I really hope they fix that...
We wonder if the Tomi cams will fit without shims in these new heads...
01-21-2004, 08:47 PM
#48
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Originally posted by FLY BY Z
hey since the tomeis have to be shimmed and adjusted to fit the stock head maybe they will fit this head without adjustment. call sgpracing and see if kyle knows.
hey since the tomeis have to be shimmed and adjusted to fit the stock head maybe they will fit this head without adjustment. call sgpracing and see if kyle knows.
01-23-2004, 09:03 AM
#49
Just off the phone with NISMO and the NISMO CAMS will work with these heads along with the VK45 Titanium Valves and Retainers, and NISMO high lift springs.
We will be offering these heads in a assembled form or seperatly.
We will be offering these heads in a assembled form or seperatly.
01-23-2004, 10:42 AM
#50
Originally posted by Jason@Performance
Just off the phone with NISMO and the NISMO CAMS will work with these heads along with the VK45 Titanium Valves and Retainers, and NISMO high lift springs.
We will be offering these heads in a assembled form or seperatly.
Just off the phone with NISMO and the NISMO CAMS will work with these heads along with the VK45 Titanium Valves and Retainers, and NISMO high lift springs.
We will be offering these heads in a assembled form or seperatly.
As the Infinti brand is not sold in Australia could you please PM me on the price of the valves & if they need modification to fit the RZZ heads.
01-23-2004, 10:54 AM
#51
Originally posted by Nathan
Great News Jason
As the Infinti brand is not sold in Australia could you please PM me on the price of the valves & if they need modification to fit the RZZ heads.
Great News Jason
As the Infinti brand is not sold in Australia could you please PM me on the price of the valves & if they need modification to fit the RZZ heads.
they can be ordered apart from the kit as well...
01-23-2004, 01:35 PM
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This is what makes the MY350Z great.
Combining experience from a pool of minds to resolve issues that would otherwise be a painfull lesson to others is invaluable.
All without once being "flamed".
Keep up the good work.
Combining experience from a pool of minds to resolve issues that would otherwise be a painfull lesson to others is invaluable.
All without once being "flamed".
Keep up the good work.
01-23-2004, 02:54 PM
#54
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Originally posted by Jason@Performance
I will definatly... we will add these on our web site...
they can be ordered apart from the kit as well...
I will definatly... we will add these on our web site...
they can be ordered apart from the kit as well...
I assum you'll ahve flow #'s compared to stock etc ?
Thanks for going through all this hassle....stuff like this makes it infinitely easier for everyone else out there.
--wes
01-23-2004, 06:09 PM
#55
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Originally posted by was wesman
Have a round about figure on the full head package ?--wes
Have a round about figure on the full head package ?--wes
01-23-2004, 06:49 PM
#56
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lol...the way I see it they owe you for the R&D work 
You should charge them for research, development,marketing, as well as distribution....they owe you big for all of it
--wes
You should charge them for research, development,marketing, as well as distribution....they owe you big for all of it
--wes
01-23-2004, 07:48 PM
#57
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Originally posted by Jeff@Performance
Motorsports is getting us the last of the parts we need to assemble these. I'll have a cost soon. What's funny is as a Nissan Dealer I can't order Infinity parts, so they have to now update the valves I need to a Motorsports part. I was also told by my Motorsports guy that the heads in the near future will be sold with the valves, guides and springs already installed...... Who say's they don't listen to/read these Forums!!! Thanks Nissan for letting me do your R&D...
Motorsports is getting us the last of the parts we need to assemble these. I'll have a cost soon. What's funny is as a Nissan Dealer I can't order Infinity parts, so they have to now update the valves I need to a Motorsports part. I was also told by my Motorsports guy that the heads in the near future will be sold with the valves, guides and springs already installed...... Who say's they don't listen to/read these Forums!!! Thanks Nissan for letting me do your R&D...
01-31-2004, 07:07 AM
#58
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Well, we worked on my new engine all week and fired it up the other day.... BOOM! Seems even we make mistakes and installed one of the new cams 180 degrees off! 
Friday we jump on the car, rebuild it all to get it ready for San Diego DYNO day and we fired it up at 6:00pm last night. Well it sounds nasty and idles mean.... but now it has a friken water leak! It's a $1.00 metal gasket at the back of the head and no way to fix it until the part comes in.... TUESDAY!! So with Jason's car wrecked, and mine a dead player it just sucks to be us right now. Another weekend goes by that I miss a couple 350Z events. DAMN, I want to scream!!! Guess I'll send the car to T/S next week and dyno tune this beast. So since we had it apart I had a guy do some Port and Polish work to the heads and intake runner doing a port match as well. Installed the JIC Y-pipe, JWT Cams, and JWT pop-charger. I'll throw up some dyno numbers as soon as Tadashi has time to tune her. Boy, this has been an expensive week.
Friday we jump on the car, rebuild it all to get it ready for San Diego DYNO day and we fired it up at 6:00pm last night. Well it sounds nasty and idles mean.... but now it has a friken water leak! It's a $1.00 metal gasket at the back of the head and no way to fix it until the part comes in.... TUESDAY!! So with Jason's car wrecked, and mine a dead player it just sucks to be us right now. Another weekend goes by that I miss a couple 350Z events. DAMN, I want to scream!!! Guess I'll send the car to T/S next week and dyno tune this beast. So since we had it apart I had a guy do some Port and Polish work to the heads and intake runner doing a port match as well. Installed the JIC Y-pipe, JWT Cams, and JWT pop-charger. I'll throw up some dyno numbers as soon as Tadashi has time to tune her. Boy, this has been an expensive week.
