Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 12-16-2017, 04:38 AM   #1
Silvi
Leaky Injector
 
Join Date: Nov 2011
Location: IL
Posts: 130
Trader Rating: (0)
Silvi is an unknown quantity at this point
Feedback Score: 0 reviews
Sr20 Solid lifters with stock cams

Will it work to run stock cams with the solid lifters? (After shiming)

Thanks!
Silvi is offline   Reply With Quote
Sponsored Links
Old 12-16-2017, 07:15 AM   #2
b.series
Zilvia Member
 
Join Date: Mar 2011
Location: woodbridge, VA
Posts: 298
Trader Rating: (5)
b.series is making a name for him/her selfb.series is making a name for him/her selfb.series is making a name for him/her self
Feedback Score: 5 reviews
yes but what is the point? stock SR cams suck!!!!!!
b.series is offline   Reply With Quote
Old 12-16-2017, 08:51 AM   #3
Silvi
Leaky Injector
 
Join Date: Nov 2011
Location: IL
Posts: 130
Trader Rating: (0)
Silvi is an unknown quantity at this point
Feedback Score: 0 reviews
Im not looking for different power output or re-tuning..Just the same engine setup but more reliable using solid lifters (rocker jumped twice)
Change stock cams to procams will make the powerband much worse
Silvi is offline   Reply With Quote
Old 12-16-2017, 09:21 AM   #4
Kingtal0n
Post Whore!
 
Kingtal0n's Avatar
 
Join Date: Jul 2005
Location: South Florida
Age: 34
Posts: 3,780
Trader Rating: (17)
Kingtal0n has a spectacular aura aboutKingtal0n has a spectacular aura aboutKingtal0n has a spectacular aura aboutKingtal0n has a spectacular aura aboutKingtal0n has a spectacular aura aboutKingtal0n has a spectacular aura about
Feedback Score: 17 reviews
Send a message via AIM to Kingtal0n
If you are jumping rockers you must be overspinning the engine, or have weak valve springs. A stock engine should hit 7k and bounce from the rev-limiter there without issue. Try new valve springs or lowering the redline. A stock cam only makes power to like 5500 rpm anyways; so you shouldn't be spinning much past that point to begin with.
Kingtal0n is offline   Reply With Quote
Old 12-16-2017, 11:30 AM   #5
Silvi
Leaky Injector
 
Join Date: Nov 2011
Location: IL
Posts: 130
Trader Rating: (0)
Silvi is an unknown quantity at this point
Feedback Score: 0 reviews
The rev limitier was set to 7400 for like 6 years
never happened before...even after hard track days

As I know its a common problem with the Sr's, I also change the shims with guides to prevent the options it will throw a rocker again
Silvi is offline   Reply With Quote
Old 12-16-2017, 12:18 PM   #6
derass
Zilvia Addict
 
Join Date: Jun 2010
Location: Toronto, ON
Age: 29
Posts: 981
Trader Rating: (0)
derass is making a name for him/her selfderass is making a name for him/her self
Feedback Score: 0 reviews
Quote:
Originally Posted by Kingtal0n View Post
A stock cam only makes power to like 5500 rpm anyways; so you shouldn't be spinning much past that point to begin with.
That's not fair. More like 6500.

In any case, solid vs hydraulic lifters are only part of the problem. The root cause is the floating rocker design. And that is only remedied by going to a VE head with shaft-mounted rockers. Those can't be thrown anywhere. Or a GM Lxx V8. Or a RB or JZ whose valvetrain use cam-followers.
derass is offline   Reply With Quote
Old 12-16-2017, 11:46 PM   #7
b.series
Zilvia Member
 
Join Date: Mar 2011
Location: woodbridge, VA
Posts: 298
Trader Rating: (5)
b.series is making a name for him/her selfb.series is making a name for him/her selfb.series is making a name for him/her self
Feedback Score: 5 reviews
Quote:
Originally Posted by Silvi View Post
Im not looking for different power output or re-tuning..Just the same engine setup but more reliable using solid lifters (rocker jumped twice)
Change stock cams to procams will make the powerband much worse

Got it. Make sense had the same happen to me. Solid lifters and dual rocker guides will solve that problem . So to answer your question YES stock cams will work, please ensure to shim correctly.
b.series is offline   Reply With Quote
Old 12-18-2017, 08:51 AM   #8
hanzbrady
Internet Scientist
 
hanzbrady's Avatar
 
Join Date: Apr 2015
Location: Floriduh
Posts: 1,068
Trader Rating: (4)
hanzbrady has a spectacular aura abouthanzbrady has a spectacular aura abouthanzbrady has a spectacular aura abouthanzbrady has a spectacular aura abouthanzbrady has a spectacular aura abouthanzbrady has a spectacular aura about
Feedback Score: 4 reviews
Uh, no this will not work. There's a reason that Tomei has different grinds for solids and hydraulic camshafts. The ramp angle is drastically different.

You can physically install your oem camshafts with solid lifters and even run the engine for a bit, but taking a camshaft that's designed to operate at 0 clearance and running it at .008" clearance or whatever it is that Tomei calls for these days is not a good idea.

The end result will be a noisier SR that has more valvetrain issues. Just spend the extra $380 and spring for a set of solid 260's from Tomei they work great until the 400HP or so mark and will make your engine happier throughout the rev range which will make you happier.
__________________
[email protected]
hanzbrady is online now   Reply With Quote
Old 12-18-2017, 09:48 AM   #9
pacotaco345
Zilvia FREAK!
 
pacotaco345's Avatar
 
Join Date: Jan 2010
Location: SoCal/Ft Worth TX
Age: 24
Posts: 1,421
Trader Rating: (4)
pacotaco345 will become famous soon enoughpacotaco345 will become famous soon enoughpacotaco345 will become famous soon enough
Feedback Score: 4 reviews
Something tells me that if you aren't capable of doing the research to know if you can use stock cams with solid lifters you also lack the patience to properly shim a solid lifter setup. Solid lifters won't solve a crooked rocker.. if anything they'll make the problem worse

*note that the only reason SRs blow rocker arms in the first place is because people misplace the order of the shims when they take the heads apart. I've had my rev limit set at 7800 on stock valvesprings and poncams for 2 years without issue
__________________
pacotaco345 is online now   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 09:39 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
vB.Sponsors
Copyright © 1998 - 2015, Zilvia.net™