Remember 'Special Sauce?'

**mgoblue** · September 16th, 2012, 13:49

After a 3 month wait to get into EPL, I left her in Tony's hands on Friday. This came about after having it on a local dyno at the end of May, and finding that it was very running lean up top. The plan for this week is to make sue that the engine is healthy, some dyno time for Tony to evaluate the need for larger injectors, upgrading if need be, and then finally the final tune. I'll post the progress along the way!

**na1mt** · September 16th, 2012, 14:23

Always said that car needed to be custom tuned and not just flashed. Good luck with it, keep us posted on progress.

**nistah** · September 16th, 2012, 20:06

Are you the new owner of Special Sauce? If yes please let us know & advise how she is doing!

**speedtrapped** · September 16th, 2012, 20:19

Ron, as far as I knew, the car was Custom tuned by Doug/dion on their Maha dyno with dahlback rep. In fairness to dion, he said he didn't think the dahlback guy knew what he was doing. I def felt, the dyno chart that came with that car was BS, cause the car didn't feel any faster then when I had it stage 2 with eurocharged. Given their was bigger turbos, bigger fuel pump, and FPR....I never understood the car lean condition. Bad tune, likely ..but if u run more boost you run more fuel....bigger injectors. Tony will transform that car.

**ben916** · September 16th, 2012, 23:03

AH!!! she is back!!!! nice!

**mgoblue** · September 16th, 2012, 23:58

I am, I bought it from Stephen in the spring...she'll be doing a lot better in about a week

**MaxRS6** · September 17th, 2012, 01:34

Look forward to the updates- Good luck with the project!

**mgoblue** · September 17th, 2012, 19:02

EPL had the car on the dyno this morning and did the typical leaning out at ~4500 rpm, so they put their tune in, and it did the same thing. They threw a fuel pressure gauge on to confirm that this was hardware related. So a new stock Rs6 fuel pump is on order...

**lswing** · September 17th, 2012, 19:57

Have them run an injector duty cycle test also, you might be maxing out the stock injectors...or they could be dirty. Don't think you want them above 80% I believe. Interesting you go lean at 4,500, that's when my boost falls off as the turbos spool out, but the fuel mix stays the same. Do you know the fuel percentages being added under boost?

**4everRS** · September 17th, 2012, 20:21

Subscribed (interested to see what Tony can do)

**speedtrapped** · September 17th, 2012, 20:45

as I know he may be in the dark on some parts. When I bought the wreck, Dion had forgotten to take the bosch 044 fuel pump out of wreck, and billed me for a new one. It was installed 'brand new' march 11'. I would be interested to hear what Tony says about the fuel pump, once removed.

this was what it was suppossed to be.....
http://www.audiandvwpartsforsale.com...fule_pump.html

**mgoblue** · September 17th, 2012, 21:44

Originally Posted by speedtrapped

as I know he may be in the dark on some parts. When I bought the wreck, Dion had forgotten to take the bosch 044 fuel pump out of wreck, and billed me for a new one. It was installed 'brand new' march 11'. I would be interested to hear what Tony says about the fuel pump, once removed.

this was what it was suppossed to be.....
http://www.audiandvwpartsforsale.com...fule_pump.html

I've already asked Rich to tell me specifically what pump is in there once they pull it.

**speedtrapped** · September 20th, 2012, 18:31

any update on fuel pump?

**mgoblue** · September 20th, 2012, 20:45

Not yet, they sent the injectors out to be "dynamically flowed and modified," once they come back they're going to work on the fuel delivery all at once...hopefully tomorrow.

**speedtrapped** · September 20th, 2012, 22:14

Ok, lmk I am very interested if it is fact the pump I paid for, or it was defective, or hopefully not- OEM rs6, ie never changed out.

**mgoblue** · September 25th, 2012, 17:22

The fuel pump was pulled this morning...I'll just copy and paste from the email I received

The length of the 044 pump doesn't allow for an in-tank install on the C5... There's just no way to mount these in there for proper pick up, however, this is honestly one of the poorest of attempts we've seen at this.

**SteveKen** · September 25th, 2012, 17:31

So the logical question is: "Does an 'improper' pickup cause the lean condition, or is it just an ancillary issue?"

"Root cause" is what you're after. Hopefully it get sorted out without throwing tons of cash at potential red herrings.

**mgoblue** · September 25th, 2012, 19:52

the new fuel pump and larger injectors should do it, hopefully it's back on the dyno this week to confirm that though.

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