Night Time Drive in my 996

To hot out here in AZ to drive. So I drive in my garage - Updated company services including Dyno Tuning is located HERE

Me, I just sit in the car holding the wheel while making engine noises. It saves gas.

This way gets you a bit high too Exhaust fumes! Tasty!

What does it dyno at?

ur lights are on :P p.s. what did u dyno at?

I have the B&B Headers, Fabspeed Exhaust with Bypass Pipes, EVOMS Intake. We were calibrating the dyno so on a 4th gear pull it did 284. A little high, it should read about 265 instead I think.

You need to shut the trunk lid and put the fan in front of the engine. That is, unless you drive down the road with the trunk open and towing a big fan to keep the intake air and engine cool. You'll notice a big difference in dyno readings, but it will more relect real world available power.

That is how most people dyno the cars, but I will take your advice on our next runs. Thanks

99 is right, that's how Ruf does it (and porsche too), deck closed in the wind tunnel. Just save yourself the wear and tear and go out and get a g-timer, 100$, evaluate your mods yourself and get just as meaningful(less) data as a chassis dyno. BTW most racers I know dyno engines not cars.

yup. I'm in Phoenix at the moment too. Now I remember why I moved...

why did you move.. cant handle the 115 degrees So your telling me I should have bought a $100 Gtech instead of a $70000 dyno. DAMN IT!!! Should have polled the forum users

don't worry about it dan. since you seem like souch a nice gent, i'll trade ya fer it

In Portland the roads actually have turns, and they are longer than they are wide...

How do you do the axhaust AND bypass pipes?

Talk about real night time driving.... I would love to do that but now a days, where I live, there's just too many bugs... swarming everywhere there's light shining!! I come home with bumper and windshield full of them!!

Chris or Anyone, Has anyone tried comparing results between these gadgets and dyno readings?? Are they close?? Tnx in advance.

Dyno providers will say no. but they have an interest in them being different. Franlky, it does not matter, whether a dyno or a G-tech or other device is accurate, but more importantly that they are consistent based on enviroinment variables. I could care less if my car showed 100 rwhp, just as long as every time I measured it, it would be 100. Only with consistency can you properly test the result of mods.

Cat bypass maybe? Good catch!

Actually BEL tested theirs extensively and swear by their data, try their website. Remember chassis dynos were/are designed to test smog emissions on cars, not max hp. Too many variables, wholly inaccurate, do you really think Schumacher puts his car on a chassis dyno or a standard engine dyno? Chassis dynos are really aimed at the street crowd, like racing for pinkslips behind the dairy queen, no hard core racer(NASCAR,NHRA,IMSA, what have you) would take it seriously. JMO

So whats wrong with PHX roads, they get rid of the need for navigation Bottomline is a DYNO is way more accurate the GTech anyday. A dyno is a tool, extensive for tuning, measuring, and learning. Consistancy is key, more over then what is "right".

So I guess, since you dyno operators say that dynos are accurate, I can claim that my supercharged 1999 C2 has horsepower in excess of 510???? I mean, I have a graph from a dynojet that shows RWHP of 437 on my litle old 3.4 liter engine. It must be true, so please back me up wen I claim a 510 hp 996. Or is the other test on the same day that showed 407 RWHP on a different dynojet accurate?????? Or maybe the 3rd test that day that showed 374??? I'm going to keep trying different ones until I find one showing 700 rwhp. Then my car will be real fast. LOL. Bottom line is that dyno's are not accurate, but can be. The important thing is not what they show is correct, but that what they show is consistantly wrong, right or somewhere in between.

I think g timers are no worse than chassis dynos, probably not any better. If you're seriously racing then chassis dynos are a waste of time and meaningless, a real engine dyno is the gold standard for real racing. Just pull the motor and spend a day or two testing whatever you're looking into. We once spent a day and a half jetting a carb right on a dyno before a big event. However, for most folks here who really just have street cars that play a little on the track, me included as we no longer campaign a nationaly competitive race car, you're really just wasting your time and money on a chassis dyno. Like 99 said, it's all about consistency and results, thus a g timer is no better and certainly not worse than a chassis dyno in evaluating mods on a street car.jmo fwiw