The Ultimate GReddy Turbo Kit Thread
02-03-2009, 12:07 PM
#272
[QUOTE=devs2k,Feb 3 2009, 09:23 AM] it should be OK in the winter as long as your AFRs look okay...
During the year, boost holds steady at 7-8psi to redline, but in the winter it can spike up to 10-11 psi before settling at 8 psi.
During the year, boost holds steady at 7-8psi to redline, but in the winter it can spike up to 10-11 psi before settling at 8 psi.
02-03-2009, 12:13 PM
#273
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Originally Posted by JoeyBalls,Feb 3 2009, 04:07 PM
I always thought it was better to spike at warmer outsaide air temps because the air is less dense, so it is richer, wheras in the winter more dense, leaner A/F,
maybe the spiking in the summer is more dangerous because of hotter temps in the combustion chamber?
maybe the spiking in the summer is more dangerous because of hotter temps in the combustion chamber?
In fact, in the winter, my AFRs are really rich (high 10s, low 11s) when I am spiking that high, a function of my tuner's conservative "spreadsheet tuning" as he extrapolated the fuel needed in a boost spike condition.
02-08-2009, 02:32 AM
#274
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i have a question...so i got the carb kit used and all the tubes are all mixed up/some MIA...cant i just go to a auto store and gets some new rubber tubing because i cant really tell much of a difference of the rubber tubing?
thanks
Josh
thanks
Josh
02-08-2009, 06:58 AM
#276
Remember, I was taking about boost creep, not spiking, two different things.
The extend to which the boost creeps should not depend on the weather. One can argue that it is safer during the winter though due to cooler temperatures.
My setup is Berk test pipe and Tanabe Touring exhaust....I think it is stock diameter.
I might just slap HFC on the car and call it a day : /
The extend to which the boost creeps should not depend on the weather. One can argue that it is safer during the winter though due to cooler temperatures.
My setup is Berk test pipe and Tanabe Touring exhaust....I think it is stock diameter.
I might just slap HFC on the car and call it a day : /
02-08-2009, 04:12 PM
#279
yeah but the air it moves through in the summer is much less dense air.
I know when it was 60F and above I didnt creep with a test Pipe, anything below that I was Boosting uncontrollably
I know when it was 60F and above I didnt creep with a test Pipe, anything below that I was Boosting uncontrollably
02-08-2009, 04:55 PM
#280
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All I can say is the summer and fall I had no boost creep with a 3" TP. At 20 degrees and a berk HFC I have a 1+ psi pound creep/spike from 9.5 to low 11. I think the colder the more you need to be careful.