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24OZ

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Posts posted by 24OZ

    T5 WC shifter position on S30

    in Drivetrain

    Posted

    Hi guys,

     

    I've got a late 240Z and will be fitting a WC T5 transmission mated to the L series. I've read a lot of posts which states the shifter comes a couple of inches forward then the stock location. I will be using the 280ZX NWC T5 bell housing along with it's tail shaft modified to take the larger WC output shaft.

     

    As far as I understand, please correct me if I'm wrong, I won't need to alter the chassis shifter hole but I would have to alter the centre console. Is this true for a late 240Z also? Or is there a shifter solution which will allow me to install without modifying the console?

     

    If you've got a part number for the shifter or pics of what you've done please share!

     

     

    Thanks.

    Pix of L28 Twin Turbo?

    in Nissan L6 Forum

    Posted

    I believe this to be the HKS version same as the one in the link from my other post.

    [

     

    You are correct, that's the HKS version, how do I know? I am running the same manifold with twins, my car is RHD so I can't comment on whether it will work on a LHD car without modification.

     

    If you go to my thread on AFR graphs, you can see how she's running.

    My AFR curve is spikey/jagged not linear - thoughts..

    in Fuel Delivery

    Posted · Edited by 24OZ

    Thanks for your input Ryan.

     

    Here is a bit more details on my set up. I'm running 320cc injectors, stock turbo cam and twin turbos (old school units that came with the HKS twin turbo manifold I'm running). I am also running two innovate O2 sensor in each turbo down pipe, ie each turbo feeds of 3 cylinders.

     

    I am attaching my other graphs, what's interesting is to see the boost with regards to the lean spot you mentioned between 2,500 to 3,500. These are lazy turbos and they don't wake up until quite late. I think I could benefit from a better cam as power falls off at 5,000 revs, not sure if this is due to the nature of the turbos, or the cam, or a combination of the two. Looking at other peoples graph it does appear that the turbo cam runs out of revs around 5K.

     

    Anyway, appreciate all input.

    post-989-025114800 1348784245_thumb.jpg

    post-989-068230100 1348784252_thumb.jpg

    My AFR curve is spikey/jagged not linear - thoughts..

    in Fuel Delivery

    Posted

    I just got back from the dyno and wanted some thoughts on my AFR plot for my L28ET. I've been told that the tuner tuned the map via the O2 sensor and the readings from the graph where taken from the exhaust, hence in reality the numbers should be slightly richer.

     

    The car feels great on the road but I've shown the graph to a few people and they've told me that there shouldn't be so many spikes in my AFR plot and it should be smooth.

     

    Is this really the case and is it worth spending more dyno time to smooth out? The guy who tuned the car for me I guess doesnt think so or he would have addressed it?

    post-989-048015900 1348740613_thumb.jpg

    Clutch slipping

    in Trouble Shooting / General Engine

    Posted · Edited by 24OZ

    Hi there,

     

    I've got a 73 240Z running an L28ET (P90 head and stock turbo cam) with aftermarket computer controlling spark and fuel.

     

    My best time last year at the strip was a 13.9 but this year my times have been terrible in the 16s. The only thing that's different from last years set up is an S14 tranny as opposed to an S130 one, a quaife ATB and due to lower profile rear tyres an overall gear ratio of 3.7 as opposed to 3.54. So I would expect my times to improve not to get worse... :o

     

    My clutch has remained the same it's an ACT Clutch rated at 410ft/lbs, I've hardly done that many miles on it less than 2000 approx.

     

    I dynoed the car last year and she was putting out 290hp and 328ft/lb of torque, with the same clutch.

     

    What I experienced at the strip was the following, she would get to 5,000 revs and would just stay there, my foot would be completely off the clutch pedal (I wasn't riding it) and fully down on the gas but the revs wouldn't rise. At the end of the run there was a really strong smell of burnt clutch.

     

    I'm finding it hard to believe that my clutch is slipping due to the power I'm producing as it's rated for much more torque then what what I'm producing. Could the clutch be slipping due to an electrical/ECU problem? Or does this just sound like a bad clutch?

     

    Thanks!

    M2 Z31 Short shaft issue

    in Drivetrain

    Posted · Edited by 24OZ

    Can I just add that the pics SunnyZ posted show a polished axle, mine didnt look like that. Not fitted mine yet so can't comment on how they've held up.

     

    Sunny did you polish yours or is that how they came?

    hood vents: ideas...

    in Windtunnel Test Results and Analysis

    Posted · Edited by 24OZ

    Has any testing been done on the effectiveness of the 280zx vents on the late turbo cars,which have the NACA style vent.

     

    I'm thinking that if Nissan got it right on the 28they turbo (they usually do with theri development) it's just a question of grafting the vents on to an S30 hood. What's eveyones thoughts on this, i don't see it done that often which makes me wonder why as it's appears an obvious route. :huh:

    V-Band Clamps

    in Exhaust

    Posted

    I've also wondered about the difference in quality and price and what to go for as I have zero experience with these clamps.

     

    Are these clamps universal ie, if you have one make of flange flange welded to your exhaust can you use another companies clamp? Hope that made sense!

     

    With my predicament I've got an intake manifold I purchased with the flange welded to it, it didn't come with the clamp so no idea which to go for in terms of price or whether make makes a difference in terms of if it will fit.

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