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Thread: mild camshaft ?

  1. #1
    Registered User nathan 240k's Avatar
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    Default mild camshaft ?

    hi guys im chasing a mild cam for my l28 dose anyone no weather u can still get billet cam shafts or do u have to get the standard one ground .im looking on the net and not getting much info.id rather not have to change lash pads etc.any info would be great

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    Registered User 71Nissan240Z's Avatar
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    Changing lash pads is only required when the wipe pattern is not centered om the pad. Stock spec pads are .160 of an inch i believe.

    I would just get the stock cam reground. The ppl doing the regrind will give u a valve lash spec and u take that number with u so when u do ur wipe test u see if u need thicker pads. Some ppl put little snipets of feeler guage to get the correct wipe pattern. Personallu i would just use new pads accordingly.

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    Registered User siteunseen's Avatar
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    Here's a company that does L motor cams.
    Web Cam Inc. - Performance and Racing Camshafts
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Registered User Travel'n Man's Avatar
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    Get in touch with Dave Rebello at Rebello Racing - he can custom grind - I would go no less than a stage III personally
    Life's a journey; enjoy the ride!

    Mitchell
    L28 - N42 Block w/Flat tops - N42 Rebello Head & Cam - Triple 40 PHH Mikuni's - Headers - Recaro Seats -
    R180 3.9 Diff - Close Ratio 5 Speed - Toyota Vented Brake Upgrade w/ Porterfield High Performance Pads & Shoes

    1972 Datsun 240z
    HLS30-75040


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    Registered User madkaw's Avatar
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    Do it right- do it big!!
    Like said, get a regrind done from someone that works with these L motors
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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    Registered User nathan 240k's Avatar
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    ok guys ive rebuilt the bottom end 4 thou over its a f54 block with a n42 head i had read in some forums not to go to big with these engines and other people say the bigger the better ?

  7. #7
    Registered User madkaw's Avatar
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    If you go thru the MANY threads where owners comment on camshaft selection- MANY regret not going bigger as it doesn't effect drivability that much to have a big cam. I'm running stage 2 and it is as civilized as stock. If you read articles by Racer Brown , he comments how these engines like big cams.
    I can't wait to go bigger, but I'm not disappointed with milder cam .
    Being you already have the L28, you have some displacement and torque, now give it some HP.
    Remember , the power is in the head, make use of it.
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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    I don't know what the L28's use in "tasmaina" (OP's location) but big cams on a stock EFI system is bad, big cams on carbs is good. That's what I've learned anyway.
    1976 280Z, with some minor modifications

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    Registered User madkaw's Avatar
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    Yes, I meant to ask about induction system. This conversation should be based on how your fueling this.
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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    sorry yea its gots a 350 holly at the moment but will be going triples

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    Registered User madkaw's Avatar
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    Go BIG!
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

  12. #12
    Registered User Lazeum's Avatar
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    I had a F54 with stock N42 head with what was called a stage II Cam (Schneider stage II 274/274 you can get at MSA).
    With regular distributor (Mallory Unilite) I wasn't able to get easily the advance the engine would require to get full power. I was only able to run 29 max advance. With spring kit, I could have been able to adjust somehow timing (maybe!)
    Going bigger on cam allows also engine to run with lower dymanic compression ratio where ping accurs. it should help to get engine running good.

    Regarding driveability, you're driving a 2300/2600lbs car with 2.8L engine, you should be smooth to drive.

    Today, I've got a much more agressive cam made by Rebello (called street cam with tight lash - I've got a reference number I need to dig from my documents if you'd like to know) on custom p79 head, 3xDCOE & Mejajolt ignition. Engine idle is set at 800rpm. In traffic jam is goes as low as 600rpm without any problem sometimes.
    At 2000rpm in 5th gear on roads going up with a 7% slope was no problem at all (but I run Megajolt so timing at this condition was 49 - it is hard to get on regular dizzy)

    So go BIG also
    Last edited by Lazeum; 07-14-2013 at 04:12 AM.
    Matt - 72' 240z

  13. #13
    Her Majesty the 26th 26th-Z's Avatar
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    Enjoy the Ride
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    Registered User LeonV's Avatar
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    I got my cam custom-ground by Isky, matching it to my engine and needs.
    2/74 260Z

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    Yeah I'll definatly be going big. Built an 1800 for my Gemini years ago with a huge cam and was awesome. Will love to have the k just lumping its face off
    76' 240K - full resto project

  16. #16
    Registered User EuroDat's Avatar
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    Being a bit closer to tassie, you might want to try Wade cams Wade Cams Australia precision camshafts for automotive, marine, aviation, industry or Crane cams Crane Cams Australia

    This article might help you some Racer Brown Datsun 510 camshafts & valve timing datsport

    Chas
    Last edited by EuroDat; 07-15-2013 at 05:16 AM. Reason: Racer brown link
    Chas
    5/77 280Z HLS30 403100 with some modifications
    Original colour: 305 Light Blue. The PO changed it to Red

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    Registered User nathan 240k's Avatar
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    ha ha yea i spoke to a tech guy at wades cams today ive ordered a cam lash pads and springs wades have a good rep her in aus with datsun camshafts so im going with them.thanks chashttp://www.datsport.com/racer-brown.html

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    Soooo, what ya order mate?
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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    Registered User nathan 240k's Avatar
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    i went a wade street/race grind the tech guy said that i had to change lash pads and springs with this cam

  20. #20
    Registered User madkaw's Avatar
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    Anything more specific - like lift and duration?
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

  21. #21
    Registered User nathan 240k's Avatar
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    na sorry its a 74 grind .il post specs when it gets here

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