[parttimer]

I have my pump gas killer pulley in hand, getting ready to install. Did a few runs last night and watched AFR and recorded it. Looks like I'm running rich with my current tune. Ripa said no tune was needed when moving down. How do these numbers look, just don't want anything to go boom! https://cloud.tapatalk.com/s/5d4428a0480ab/20190801_202809.mp4https://cloud.tapatalk.com/s/5d4428b4d65d5/20190801_202716.mp4

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[16GoManGoHC]

2.85 to a 2.79 is so small of a change I highly doubt the engine is even going to know pulley was changed, a change in DA from 500 to 2500 probably has more effect. Now going to a 2.72 I’d be concerned.

 

[RVC]

Subscribed, I am thinking of going with the Pump Gas Killer too

 

[parttimer]

Put it on over the weekend. I haven't noticed any new crazy power change, however my MPG has ticked up, I assume because i was rich before and have leaned out? Going to get to the dyno for some pulls and logs.

 

[16GoManGoHC]

Please post, curious to know results

 

[DaBaby707]

I am curious of the results too

 

[Radride]

AFR looks good. What did you gain interms of boost? 0.5psi?

R.K.

 

[parttimer]

no dyno results, i did see a small bump in boost, logs were still good after sending to Tim. Bearing noise came up so the blower came off and went to get rebuilt. A griptech was put in it's place.

 

[Slowbusa]

What was the boost level? How much boost is max for 93 pump?

 

[16GoManGoHC]

About 16 psi depending on a few atmospheric factors and engine specifics.

 

[Slowbusa]

What should the AFR be for safety and max performance?

 

[16GoManGoHC]

Safe side is About 11.3-11.5 at WOT and full boost

 

[Radride]

Safe side is About 11.3-11.5 at WOT and full boost

Careful with that answer. It all depends on the fuel that is being used.

R.K.

 

[Slowbusa]

I bought a car with 16lbs boost it reads 10.0 at full boost on 93.

 

[parttimer]

I see between 11 and 12 on pump 93 before and after my pulley swap.

 

[YMMV]

I run the 2.79 with a Tim Barth tune. I am in NJ with about 2000DA. I see 16 - 16.5 lbs on this pulley with AFR about 11.8 on 93 pump.

 

[03SONIC]

I run the 2.79 with a Tim Barth tune. I am in NJ with about 2000DA. I see 16 - 16.5 lbs on this pulley with AFR about 11.8 on 93 pump.

You need to come to our rental. November 15th

 

[Speedfreak93]

no dyno results, i did see a small bump in boost, logs were still good after sending to Tim. Bearing noise came up so the blower came off and went to get rebuilt. A griptech was put in it's place.

Just curious, how many miles on the car when the bearings went bad? You think having a non de-coupler pulley had anything to do with it?

 

[Speedfreak93]

I run the 2.79 with a Tim Barth tune. I am in NJ with about 2000DA. I see 16 - 16.5 lbs on this pulley with AFR about 11.8 on 93 pump.

Are you happy with the RT800 package? Going to pull the trigger on it but worried about not having a decoupler style pulley.

 

[Radride]

Are you happy with the RT800 package? Going to pull the trigger on it but worried about not having a decoupler style pulley.

There are a lot more cars out there with standard pulleys than the decoupled style and there have been very few if any bad bearings. I think the whole bad bearing thing has been blown out of proportion. For how many cars were built I wouldn’t worry about it.

R.K.