1985-1998 [Subscribe to Daily Digest] |
Basically, the SQR stage 4 map runs all of the stock hardware right on the edge. So it really doesn't leave you with much of a safety cushion, so to speak. If something goes even slightly wrong under WOT, you could be endangering your motor. The B235 is a brick and will take a lot of abuse before it craps out on you, so this speaks to the aggressive nature of SQR's stage 4 tune.
Chris is right on the money: either "de-tune" the car to a stage 3 map and stick with stock fuel equipment OR get bigger injectors and maybe even a Walbro 255 high flow pump. Usually this is done during a turbo upgrade, just like he said.
In my case, I de-tuned to stage 3 for a lot of reasons. This isn't to say that you can't choose option 2 as I stated above, it was just personal preference.
Also, I melted a piston, it didn't crack. Very lean conditions will do this.
On the topic of air filters, there is a lot of arguing with what the best option is. Paul at Automotion (SQR dealer) recommends running stage 4 software with the largest filter you can fit in there. The stock filter is definitely not the largest filter you can fit in a 9000. I chucked my AEM Dryflow 3x8 for a larger K&N 3x9. Barely fits with Taliaferro's intake pipe.
The last thing you want to do is restrict air flow on a stage 4 tune. Either run a HUGE filter and proceed with caution, get a bigger turbo and injectors to ideally run stage 4, or de-tune to stage 3.
There is a big difference between the numbers for stage 3 and 4 tunes, by the way (as I'm sure you've looked into). Average stage 3 tunes run about 280bhp and around 320 ft/lbs and the SQR tune runs about 310bhp and a whopping 400 ft/lbs of torque (eats trannys for breakfast!).
Good luck!
posted by 173.19.20...
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
![]() |
![]() |
![]() |
![]() |
![]() |