spark plugs cracking

The place for all technical car discussions. If you haven't already, read our Disclaimer first!

Moderator: The Mod Squad

spark plugs cracking

Postby tsoob » Tue Mar 09, 2010 4:57 pm

why would a nissan RB crack the no1 plug, i.e. it cracks the porcelian bit.
Platinum Wheels
15 Parkway Drive
Mairangi Bay
09 486 5317
WHEELS, TYRES & SUSPENSION!
www.platinumwheels.co.nz
User avatar
tsoob
Toyspeed Member
 
Posts: 3253
Joined: Tue Dec 05, 2006 7:37 pm
Location: 201.1kw on 19psi

Re: spark plugs cracking

Postby sergei » Tue Mar 09, 2010 5:00 pm

tsoob wrote:why would a nissan RB crack the no1 plug, i.e. it cracks the porcelian bit.


any cold water getting there?
User avatar
sergei
Mad Russian
 
Posts: 8406
Joined: Wed May 15, 2002 12:06 pm
Location: North Shore

Postby iOnic » Tue Mar 09, 2010 5:37 pm

Just randomly or has it happened to a few? Might have had a hairline fracture when the plugs were installed and it's vibrated into a complete crack?
Faber est suae quisque fortunae
2009 Mazda3 MPS
2016 CFMoto 650NKs
2013 Hyundai IX35 Highlander
User avatar
iOnic
Toyspeed Member
 
Posts: 3736
Joined: Fri Jun 25, 2004 6:31 pm
Location: Melbourne VIC

Postby rx7guy » Tue Mar 09, 2010 7:58 pm

I had a bluetop with ignition timing ridiculously out which cracked a bunch of plugs.
The torque band is wide and the road is narrow
User avatar
rx7guy
Toyspeed Member
 
Posts: 246
Joined: Sat Aug 20, 2005 3:01 pm
Location: Christchurch

Postby MAGN1T » Tue Mar 09, 2010 9:54 pm

Detonation does it.
It also breaks pistons and unseals headgaskets.

Steve
Computers make you go mad.
MAGN1T
!USER HAS BEEN BANNED!
 
Posts: 646
Joined: Mon Jun 10, 2002 11:34 pm

Postby tsoob » Wed Mar 10, 2010 10:04 am

iOnic wrote:Just randomly or has it happened to a few? Might have had a hairline fracture when the plugs were installed and it's vibrated into a complete crack?


thats my thoughts or
Platinum Wheels
15 Parkway Drive
Mairangi Bay
09 486 5317
WHEELS, TYRES & SUSPENSION!
www.platinumwheels.co.nz
User avatar
tsoob
Toyspeed Member
 
Posts: 3253
Joined: Tue Dec 05, 2006 7:37 pm
Location: 201.1kw on 19psi

Postby tsoob » Wed Mar 10, 2010 10:05 am

MAGN1T wrote:Detonation does it.
It also breaks pistons and unseals headgaskets.

Steve


this.

its running 15psi boost standard ecu
Platinum Wheels
15 Parkway Drive
Mairangi Bay
09 486 5317
WHEELS, TYRES & SUSPENSION!
www.platinumwheels.co.nz
User avatar
tsoob
Toyspeed Member
 
Posts: 3253
Joined: Tue Dec 05, 2006 7:37 pm
Location: 201.1kw on 19psi

Postby JustinSpiderholden » Wed Mar 10, 2010 12:29 pm

tsoob wrote:
MAGN1T wrote:Detonation does it.
It also breaks pistons and unseals headgaskets.

Steve


this.

its running 15psi boost standard ecu


According to Magnit only idiots use aftermarktet ecus becasue they are not capable of making maxium use of the stock one

Come on Guys, don't question Magnit he knows more than all of us
JustinSpiderholden
Toyspeed Member
 
Posts: 978
Joined: Thu Jun 06, 2002 11:40 am

Postby rollaholic » Wed Mar 10, 2010 4:30 pm

theres a difference between a standard factory ECU and a tuned factory ECU though isint there...
BASU!
User avatar
rollaholic
Toyspeed Member
 
Posts: 5383
Joined: Fri May 28, 2004 2:19 am
Location: West is Best

Postby MAGN1T » Thu Mar 11, 2010 11:41 am

All you need it too much timing advance. That'll make anything detonate with boost.
Knocklinks work well, flashing lights.

Steve
Computers make you go mad.
MAGN1T
!USER HAS BEEN BANNED!
 
Posts: 646
Joined: Mon Jun 10, 2002 11:34 pm

Postby Burning Angel » Thu Mar 11, 2010 11:55 am

JustinSpiderholden wrote:
tsoob wrote:
MAGN1T wrote:Detonation does it.
It also breaks pistons and unseals headgaskets.

Steve


this.

its running 15psi boost standard ecu


According to Magnit only idiots use aftermarktet ecus becasue they are not capable of making maxium use of the stock one

Come on Guys, don't question Magnit he knows more than all of us


you dont need an aftermarket ecu on most nissans,for example, with the right software and a tuning cable you can tune them just like you would a link ecu.

the local tuner has a R32 GTR running over 1100hp on a factory RB26 ecu
http://www.youtube.com/watch?v=rBZJFHtUcbs
pity the driver cant seem to get it to run good times.

on the other hand a toyota ecu can be reflashed, but not tuned on the fly making it pretty much useless
1984 SRP61 Starlet
1999 WRX Type RA
User avatar
Burning Angel
Toyspeed Member
 
Posts: 457
Joined: Wed Aug 17, 2005 11:21 am
Location: Dunedin

Postby Mr Revhead » Thu Mar 11, 2010 11:56 am

How do you reflash a toyota ecu?
Being the subject of E-whinges since 2004 8)

http://www.centralmotorsport.org.nz/home

Image
User avatar
Mr Revhead
SECURITY!
 
Posts: 24635
Joined: Tue Jan 20, 2004 4:06 pm
Location: Nelson

Postby Adamal » Thu Mar 11, 2010 12:04 pm

Are Toyota ECU's EEPROM?
Motorsport is like sex. You could take it to track and have a long, enjoyable session, or you could take it to the strip and get it over with in less than 20 seconds.
User avatar
Adamal
Toyspeed Member
 
Posts: 11592
Joined: Sun May 02, 2004 4:01 pm
Location: Waitakere Drift Stage (Ranges)

Postby edwagon » Thu Mar 11, 2010 12:28 pm

To 'chip' Toyota ecus and some Nissan (sr20), they need to have Daughterboards added, and then jumpers changed on the original ecu so that it talks to the Daughterboard.

I had a very good custom tune done on an sr20 using a daughterboard, and have had a Mines ecu in a jzz30 which I opened up and had a look at.

Unfortunately the daughterboards are usually pretty expensive as a singleton purchase, and then to install (often multilayer ecu boards) and tune, makes them close to as expensive as an aftermarket ecu, which has the advantage of being a known quantity, and can be tuned by any old workshop.
edwagon
Toyspeed Member
 
Posts: 538
Joined: Wed Oct 27, 2004 6:58 pm
Location: North Shore

Postby tsoob » Thu Mar 11, 2010 12:41 pm

link g4 FTW
Platinum Wheels
15 Parkway Drive
Mairangi Bay
09 486 5317
WHEELS, TYRES & SUSPENSION!
www.platinumwheels.co.nz
User avatar
tsoob
Toyspeed Member
 
Posts: 3253
Joined: Tue Dec 05, 2006 7:37 pm
Location: 201.1kw on 19psi

Postby B_giB » Thu Mar 11, 2010 12:54 pm

tsoob wrote:link g4 FTW


Is that when its wired inand running? :lol:
Current: SXE10 Altezza

Previous:AE86 Trueno Notch Back: Gone but not forgotten :cry: :(
AE101 Levin 20V super strut
1994 Mercedes Benz C280 Sport
User avatar
B_giB
Toyspeed Member
 
Posts: 1058
Joined: Sat Sep 06, 2003 7:02 pm
Location: Albany, Auckland

Postby JustinSpiderholden » Thu Mar 11, 2010 2:39 pm

Burning Angel wrote:
JustinSpiderholden wrote:
tsoob wrote:
MAGN1T wrote:Detonation does it.
It also breaks pistons and unseals headgaskets.

Steve


this.

its running 15psi boost standard ecu


According to Magnit only idiots use aftermarktet ecus becasue they are not capable of making maxium use of the stock one

Come on Guys, don't question Magnit he knows more than all of us


you dont need an aftermarket ecu on most nissans,for example, with the right software and a tuning cable you can tune them just like you would a link ecu.

the local tuner has a R32 GTR running over 1100hp on a factory RB26 ecu
http://www.youtube.com/watch?v=rBZJFHtUcbs
pity the driver cant seem to get it to run good times.

on the other hand a toyota ecu can be reflashed, but not tuned on the fly making it pretty much useless


But if the returned factory ecus were so good, why arn't all the top racing teams using them, how come most race cars I look into have a Motec?
JustinSpiderholden
Toyspeed Member
 
Posts: 978
Joined: Thu Jun 06, 2002 11:40 am

Postby Burning Angel » Thu Mar 11, 2010 2:50 pm

well i spose to be more specific, a road car doesnt generally need all the extra features that an aftermarket ecu offers, like launch control, gear selectable boost control, datalogging etc.

im a big fan of aftermarket ecus, but for say a skyline roadcar i don't see the point spending all the extra money for an ecu with extra features you dont need/wont use.
1984 SRP61 Starlet
1999 WRX Type RA
User avatar
Burning Angel
Toyspeed Member
 
Posts: 457
Joined: Wed Aug 17, 2005 11:21 am
Location: Dunedin

Postby tsoob » Thu Mar 11, 2010 4:00 pm

B_giB wrote:
tsoob wrote:link g4 FTW


Is that when its wired inand running? :lol:


on the way to the dyno in about an hour 8) 8)
Platinum Wheels
15 Parkway Drive
Mairangi Bay
09 486 5317
WHEELS, TYRES & SUSPENSION!
www.platinumwheels.co.nz
User avatar
tsoob
Toyspeed Member
 
Posts: 3253
Joined: Tue Dec 05, 2006 7:37 pm
Location: 201.1kw on 19psi

Postby JustinSpiderholden » Thu Mar 11, 2010 5:40 pm

tsoob wrote:
B_giB wrote:
tsoob wrote:link g4 FTW


Is that when its wired inand running? :lol:


on the way to the dyno in about an hour 8) 8)


Kent or Tricky?
JustinSpiderholden
Toyspeed Member
 
Posts: 978
Joined: Thu Jun 06, 2002 11:40 am

Next

Return to Tech Questions

Who is online

Users browsing this forum: Google [Bot] and 9 guests