Andy_Mac

Yea I've roughly been through the calcs too, get that side of it but aren't dyno's reading torque values rather than power so shouldn't torque always be a reliable figure? Or do they just get a raw figure thats then manipulated by gear ratio's and wheel diameters to allow a power calc to be made and then for some dyno's they show the calculated value rather than the unadjusted one? Just intrigued why some dyno's show huge torque values and others have expected ones whilst still giving relatively consistant power values So when people say they have Xnm atw is that actually correct saying it that way? Or since you've had to include wheel diameters, gear ratio's and final drive ratio's is that not then considered flywheel values again. Why else would you go to the effort to calculate out any gains created. Torques the turning force at the centre of the axis so shouldn't wheel diameter be the only factor that needs to be considered. There's obviously different methods of collecting this data that different brands use but say this one measures the turning force the car creates against its rollers. Could that then be the figure they show rather than the torque at the centre axis of the wheels? Think I might just spend a few days doing a lot more reading. Can't seem to find any real info for dynotorque dyno's though, don't suppose they go by another name anyone knows of? There's the metric one Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488 So then Torque = power x 9.5488 / speed

Exactly why i'm so interested in testing it.

Think so. Been told both times they struggle to maintain that kind of pressure and are slowly dropped back from about 4k

Thats what it was turned up to. Was at 16 after the last tune. They're apparently start to get off the comp map after about 20

Can anyone explain the torque portion of this dyno run and what its actually reading to get so high. Have been shown some rough calcs to try account for gear ratio and final drive ratio torque multiplication but still doesn't quite seem to add up as it should to the power figure Logs done with Romraider and Virtual Dyno running the Dynojet option give roughly 175kw and 335nm. So the power figure is resonable but has a very different torque interpretation. Engines essentially stock apart from a decatted downpipe and 3-port EBC Base run data is with the new tuners base rom running 12psi

Well with the tactrix it exports everything into excel format anyway so was just thinking about manually recording the egbp results into a table i don't really need which should then allow it to be easily graphable with virtual dyno

Was considering something like that but use the boost gauge for egbp and just get map logged from the factory sensor.

Sweet. Theres a hcd in tga so i'll give them a go. US guys can get 2x5v sources from doing the TGV delete, not sure how that applies to jap ones. I'll do some more research on unneeded inputs for the ecu.

Yea had been talking through it with him last night. Might go check out what the kits they have are like, or just braze something up with some copper at work.

And to answer the battery question, just removing the negative terminal is normally enough, but considering you have an electronic throttle then just disconnecting the battery isn't enough to completely reset the ecu like it is in the older cars

Thought about just getting a long vac hose an feeding it into the cabin somewhere for a mechanical boost gauge then just recording the what pressure it gets at certain rev ranges and chucking it into an excell graph along with the standard logged figures aswell.

Keep meaning to but bayfair is just such a nightmare these days

After a relatively cheap solution for testing EGBP. Anyone else hacked up a DIY solution before. I'm intrigued to see what kind of backpressure the stock post turbo exhaust is actually generating rather than just taking the standard advice that it needs to be swapped out. Could probably do something povo with a peak holding pressure gauge and some copper tubing for spacing to reduce the temp before getting to the sensor, but actually being able to log the difference across the rev range would be a nice bonus.

Basically yea. Doesn't always work but its certainly a start. Just gotta make sure whatever you use is the same size as the intake pipe that it can be pushed in and tightened with the hose clamp.

Thats my backyard solution, intake blocker and connection fitting all in one. Would have sworn mine had a leak but got a smoke test done on it whilst up in auckland yesterday and absolutly nothing showed up.

Ahh bugger. Mine was from them too. Probably the same one I have here gathering dust.

Yea forgot about that. Was still driving back down when you txt earlier. Driving down after 4 on the friday of a long weekend is the dumbest thing i've ever done, took over 4 hours. Where did you get your cheapo cable from by the way? Think i probably have the same one of those too. Got it for the old Legacy but not much use for me now.

There was a silver 3.0r wagon there whilst mine was getting done [quote name='kwi_fozze said: Holy cropVery very happy!!!! All the dort,gobs of torque and soooo much more power Looks like its been money well spent for all of us then

From the tune Matt just did now it peaks at 240g/s and gets 169kw, so round 226hp so pretty damn close really

So you get oil come out of the supply line if you try crank it with the turbo supply removed? You'll atleast know its making its way to the turbo or not that way

Yea he said its definately worthwhile doing.

My ones turn on the rollers Didn't think they made much of an impact other than noise suppression? You getting yours done with Matt on the dyno kwi_fozze?

Stop gloating mr power man Mine was peaking at just over 250g/s the other week whilst doing some logs. Really don't think that equates to 190kw though....

There's a couple of good ones to get reading. They both link to a extremely cheap way of reducing the VOD. http://clubsub.org.nz/forum/showthread.php?46963-An-idiot-s-guide-to-hotting-up-your-TT-legacy http://clubsub.org.nz/forum/showthread.php?40590-Rosssub-s-GTB

Highly doubt it but only repeating what the tuner said elsewhere