mild camshaft ?

[nathan 240k]

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

[71Nissan240Z]

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.

[siteunseen]

Here's a company that does L motor cams.

Web Cam Inc. - Performance and Racing Camshafts

[Travel'n Man]

Get in touch with Dave Rebello at Rebello Racing - he can custom grind - I would go no less than a stage III personally

[madkaw]

Do it right- do it big!!

Like said, get a regrind done from someone that works with these L motors

[nathan 240k]

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 ?

[madkaw]

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.

[Zed Head]

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.

[madkaw]

Yes, I meant to ask about induction system. This conversation should be based on how your fueling this.

[nathan 240k]

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

[madkaw]

Go BIG!

[Lazeum]

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

Edited July 14, 2013 by Lazeum