Insulated Air Box - Phase 2

[Revolution]

SRT admitted the problem to Nineball. The comment was vague, however it related to high IATs. That would directly affect dynoing and the dragstrip. I just installed a data logger and will have some answers in the spring.

Sorry I was referring to the brake and accelerater being pressed at the same time as when doing a burn out!

[Nine Ball]

Dyno numbers can also flatline due to ABS issues, which might also be related to the front wheel speed sensors not moving, but rears moving on the dyno. Similar motion as burning out...

[ACRucrazy]

Seems like SRT needs an burnout/dyno mode programmed into the PCM

[Nine Ball]

Seems like SRT needs an burnout/dyno mode programmed into the PCM

I would trade that for the near worthless Launch Mode. They could even use the same button.

[Revolution]

Dyno numbers can also flatline due to ABS issues, which might also be related to the front wheel speed sensors not moving, but rears moving on the dyno. Similar motion as burning out...

So is this only a Gen 5 issue with traction control or does it affect the Gen 4 cars also?

[Nine Ball]

So is this only a Gen 5 issue with traction control or does it affect the Gen 4 cars also?

A few with Gen 4's were the first to mention the burnout limp mode stuff. Using the brake and accelerator at the same time caused it. Trips an ABS brake system code, puts car in reduced power. I took that advice last time at the track, and did zero burnouts with the brake pedal. Just peeled out, and then made my run.

[Revolution]

I think I will try this!

[Viper.954]

[QUOTE=FLATOUT;19756]Edit.

You gotta admit that it's pretty funny how the moment anyone challenges the idea that the "IAT in the viper is broken and it's up to Jacky B to fix it", the thread degenerates into a trollfest (entirely initiated and perpetuated by Jacky B and his lovers).



Now tell me, are any of you REALLY going to cover your $100K+ viper with ghetto foil wrap to solve a non-existent problem? REALLY? Are any of you actually considering this "mod"? .

Yes, I plan to do it. This is great info. Cool air is free. I don't understand all the haters.

[Jack B]

Times have changed, we know a lot more now:

1. I always thought the G5 had a problem when dynoing, however, recently Torrie and Mark J did over 25 pulls and I believe all pulls had great success.

2. Several posters have come in late on this thread, straight-ahead racing is with ESC off.

3. At an IAT of 122 deg F, the pcm is pulling over 10 deg of timing, that could be part of the dyno issue. That is one reason HPT is such a great tool

[ViperGeorge]

An SRT engineer tells me that he does not believe the IAT problem is real. He believes that once you go to WOT the temps drop very quickly. Jack do you have any hard data that shows otherwise? If you do I would be happy to send it to SRT for analysis.

[Jack B]

He is partially correct, it does cool down, however, it dramatically affects dragstrip performance. I have multiple logs that show the problem. Early-on - Tony (NineBall) had the same issue at the strip and that was well documented. If you go over 95 Deg F with the IAT, don't drag race, a massive amount of timing is pulled. The problem at the dragstrip is the staging line, if it is summer time you cannot get to the tree at under 95 Deg F. My insulated box helped that condition and it shaved a few degrees off of the steady-state temps.

The simple answer is HPT or the Arrow PCM. The problem is not only that the IAT temps affect the timing, but, there are multiple conditions (other PIDS) that also pull timing. I have dragstrip logs where the timing never gets above 15 degrees BTDC after 4000 rpms.

He is correct on a road course, the IAT temp will come down, but, on the dyno and at the strip, the IAT affects power.

An SRT engineer tells me that he does not believe the IAT problem is real. He believes that once you go to WOT the temps drop very quickly. Jack do you have any hard data that shows otherwise? If you do I would be happy to send it to SRT for analysis.