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View Full Version : For those of you running higher than stock boost


jakester
16-01-2006, 04:54 PM
up to 1 bar, what heat range plugs are you using?, did you go colder than stock?
Wodjno
16-01-2006, 05:22 PM
up to 1 bar, what heat range plugs are you using?, did you go colder than stock?

I think most have gone 1 colder on the plugs
/yes
michaeli
16-01-2006, 06:53 PM
Denso iridium IK22's in mine...
AllBeItMine
16-01-2006, 08:03 PM
didn't go colder - just ensured the gap was right.

normally the plugs i buy dont seem to have the right gap out of the box. makes a big difference in turbo cars.
Wodjno
17-01-2006, 12:50 AM
I would still advise to go for a colder plug /yes
aaron68nz
17-01-2006, 04:34 AM
didn't go colder - just ensured the gap was right.

normally the plugs i buy dont seem to have the right gap out of the box. makes a big difference in turbo cars.


AllBeItMine, what gap are you using?
Quail
17-01-2006, 04:57 PM
Would it be possible for people to list what boost theyre running, and what spark plugs theyre using? thanks!
pezza
17-01-2006, 05:43 PM
Ran Stock platinum plugs and 0.95 bar here for past 6 months... (back at standard boost currently - temporarily :D)
Quail
17-01-2006, 05:44 PM
Did you have any problems running 0.95? Or did it take it in its stride :D
pezza
17-01-2006, 05:49 PM
Did you have any problems running 0.95? Or did it take it in its stride :D

well only time will tell... but have had no problems so far... :anxious: (I have only been able to stay at .95 without fuel cut reverting back to standard air intake and airbox...)
OSiRiS
17-01-2006, 08:34 PM
Hmmm while we are on this topic, what is a safe boost level for a standard VR4?
bradc
17-01-2006, 10:15 PM
about 1 bar seems to be safe, but the turbos won't be able to hold that all the way to the redline, probably about .8 or .9 by 6500rpm.
ShadyNZer
17-01-2006, 10:21 PM
whats the in psi?
my boost controller is tits, i think ive tuned it right goin by the user manual that was on here made by some chap, but still only runs bout 9psi, back before i set the limiter it used to go from 9 to bout 20!!
bradc
17-01-2006, 10:32 PM
1bar = 14.7psi
OSiRiS
17-01-2006, 10:45 PM
Can anyone recommend a reliable but cheap (value for money) boost controller?

Thanks :)
ako
18-01-2006, 10:01 PM
A $2 Brass T-piece from any air fittings shop. Drill it out to whatever ends up being 13psi and I can guarantee it'll never change :D

Failing that buy something electronic with feedback. Otherwise you're wasting your money.

Happy to sell you a Turbosmart or GFB single stage controller for like $100ish though if you want!



Plugs issue - Never found a need to go to a colder plug. ABIM was right, just gap them to around .6-.7mm (about 25thou) and you should never have ignition issues.
michaeli
18-01-2006, 10:08 PM
No fuel cut
0.8 Bar daily
IK22's
Runs brilliant...