S14/S14a stage 2 beta chip is currently in trial!

[Jez]

looking forward to seeing the graphs for this one

Me too

Starting work on stage 3 on Sunday

[lazytoads]

Woo hoo

Better work harder this week then for some more pennies

[Rudy Manders]

Isn't 1.2 bar a bit much for the standard turbo ? I always read that 1.2 bar is the limit for the standard turbo, and even then it won't last long.

And is the weather going to influence the performance of the chip ? Its pretty cold now, when you mapped it, but what about in the summer when its 30+ celcius ?
Won't the chance for detting be greater the hotter it'll get ?

[Jez]

There are quite a few people 1.2bar on the standard turbo - and I don't think they're having any problems.

With high air temps you would probably need to retard the ignition a little, or reduce the boost pressure a little to prevent det. Having said that, putting a car on the rollers, with limited air flow, is usually a good enough test to prevent det. Car are more likely to det on a rolling road than on the real open road.

[Rudy Manders]

Btw, does a GT28R or the GT28RS already have an uprated actuator ?

[Jez]

I think they will both come with a 0.6-0.7bar actuator. Although I'd imagine it depends on where you get it from.

[Wookie]

Jez- What would you say is the best uprated actuator to go for? Just collecting the bits for probably a stage 2 chip now

[Parker]

I was out in Grazor's car with ***** and it's bloody rapid!!! Pulls really well in all gears even 3 up with a bootful of food lug:

The HD Stage 2 Actuator Bracket makes the world of difference

[Jez]

Jez- What would you say is the best uprated actuator to go for?

Graham used an adjustable Nismo job - although pretty much any adj. actuator would work

[Jez]

The HD Stage 2 Actuator Bracket makes the world of difference

[G-Bone]

Nismo injectors, HKS actuator

[cHiL]

The best value way to get 1.2 bar is to get an upgraded actuator. If you go for an electronic boost controller you will need to get an uprated actuator as well - we could only manage around 1 bar at the red line with the standard actuator with the AVCR set at ~85% duty.

I dont understand that Jez My AVC-R seems able to give 1.2 bar easily??

[cHiL]

550cc Nismo injectors (the fact that they are Nismo could turn out to be quite significant - I've heard that other 550cc injecots flow at a differnet rates)

Would that be because the Nismo's are 555cc and not 550's?? Just a thought Jez

[Jez]

I dont understand that Jez My AVC-R seems able to give 1.2 bar easily??

Really? Grazors and DanS14's car couldn't hold 1.2bar to the red line.

[cHiL]

Really? Grazors and DanS14's car couldn't hold 1.2bar to the red line.

Hmmm, I'll check mine again then..