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Yeah, you need a dyno lock file, and that "loop" will go away. It's because of the Auto trans. They will send you something that turns off O/D, and essentially shifts right past 1-2-and3, right into 4th and won't downshift so you can actually run the car from 2500-redline. You'll notice yours...

^ Phew! Man, good thing none of that is technical info.

Nobody is "mucking up" your tech thread. There's some great technical value here. It's you that is being unreasonable. We're talking about alot of parameters that PRP can't access anyway. Even if every tuner here gave you every secret they have, half of them you won't be able to touch, so what...

I gotta side with Lito. If any one of the guys I mentioned ever wanted the information, they know I would give it to them if they contacted me. You don't think SCT dealers contact each other for friendly advice when they need something? It works both ways. I'm pretty sure Lito has a few things...

I hear you, this sport gets pricey! Yes your tune update will be free. I've done quite a few hotrod cams both in-house and mail order. I'll have to discuss the rest with you this week when you call. I don't want to solicit on the boards, I just wanted to post on this thread with some tech...

I have a few little tricks for 3V's with any cams. The only difference for FRPP hot rod cams is that I have a slightly more aggressive VCT table, as opposed to the generic table that I usually tweak off of for other 3V cams. I think that the driveability with our tuning is great. I have a few...

I would in NO WAY say that SCT is dwarfed by HPTuners. In fact, I think it's the exact opposite. However, unless you're an SCT dealer who has gone through both basic and advanced training, you'll have access to virtually nothing in comparison.

You're absolutely on the right path. I haven't seen any misinformation so far in this thread. Cam tuning basically requires additional air for idle, which the ISC values are changed in order to keep from stalling, surging, etc. Every car is different, and these values ARE adaptive and will...

What if they just bought the dyno for calibration development for the time being? R&D is a perfectly reasonable reason to purchase a dyno. Maybe they will open it to the public one day? That's a question for them. There are a lot of companies who purchase dyno equiptment for nothing other...

The car that's in the video is one of American Muscle's S197's. They did purchase Doug's intellectual data and they're saying Doug's going to work remotely (most of the time). Mike and Doug together will be a great addition. I'm sure that the datalogging capabilities and remote tuning...

I would leave the FPDM in the trunk. Voltage drop issues are the last thing that you want. It will be fun for whoever's tuning it to figure out why fuel pump voltage is going crazy. I've seen it try to so hard to jack up the fuel pump voltage to sustain pressure all because of wiring problems...

If you checked your long term fuel trims, and they're .98-1.01 and so are your short terms, then that means there is very little fluctuation or correction being added. It shouldn't smell very strong at all, even without cats. Just verify those fuel trims again, from about 1 volt at the MAF to...

We got a few more things we can try on the tune file to get rid of it. Every car is different. You asked me to "max out those tables". I didn't. See you can't just max them out, they're learned values that still have to be close enough to learn within a certain window or that code will...

If the O2 transport delay is what you're referring to, we've already modified this for the difference in length. We've also changed heater duty cycle and other o2 transport related items. I'm going to shoot over a tune update file to try and correct it, but every car is different. Condition...

We welded in a wideband o2 sensor, and used a bore-scope to look in the cats a while back. They looks fine, but maybe we'll give that a shot. I really think we got something electrical going on, but I'll try anything at all at this point. 3 tuners, a million sets of plugs, new COPs...

That's crazy!

That is very possible. Another one of my guesses. Harness/ECU.

The two step rev limit is so easy to add to any pre-existing files. I offer it as a free update for any customer with a track file or all-out tune that wants it done. It works phenomenally! Chris Rose

Shit, I WISH it would be something like a plug. That would put an end to the saga! LOL Helmut, see you Saturday... I've got my fingers crossed! I want to make sure we get 3 consecutive pulls with correct numbers!

Electrical problems are the worst! :(

LMAO I hear you on that! :dead2:

Just so everyone knows the background... The OP's car had perfect looking datalogs. Air flow was showing that of a car making 475+RWHP, the timing was showing spot on whatever we commanded (and we've tried between 16-24 degrees at WOT) on 93 octane. The air/fuel was verified using different...

Something is going on there between the rollers and the motor. Pinion angle, clutch, something. Keep the factory gap on the HT0's until you have nitrous on the car, then for 100 shot maybe clamp em down to 35-40 if you want to feel safe. I usually gap at 125 shot or so. But closing the gap...

Just one quick sidenote: I know you're running HT0's, because you plan on going with nitrous shortly. You're currently running them with the out-of-the-box gap? Or are they gapped down? With nitrous, I usually just throw them in. I really only gap them with a really large nitrous shot or with a...

Have him look at "gear ratio" which looks at both MPH and rpm... if he sens me the DRF dynojet run file, then I can look at that and tell you whether or not something is slipping for sure... without guessing. Gear ratio should be a nice smooth downward slope, and if you get some sort of a...