GenVibe - Community for Pontiac Vibe Enthusiasts

I went and did a dyno base run & 1/4 mile run (lol) with my Vibe yesterday. This is the shop that will be tuning my Unichip in the future so I wanted to see where I was starting at. It was my first time dynoing ever and it was pretty cool! I didn't know what to expect but I got 107.4whp/101wtq after it got out of first gear. It was in third gear at the start then the auto tranny downshifted as soon as Spencer floored it. The 1st gear torque was nice at 160.1wtq, but leveled off once it shifted to second and was pretty flat the rest of the way. You can hear it shift into third at the end of the vid. The numbers are to the wheels. So they estimated that there was a 20% loss of power from the crank to the wheels since it is AWD. According to Spencer's estimate the crank numbers would be around 135hp/126tq (not bad considering the stock crank numbers are 118hp/115tq) & my 1st gear torque would have been at 200ft./lbs. (I don't know if that is correct or not, but is sounds good) A good thing is that my A/F ratio was super rich staying between 7 & 8 the whole time so there will be some power gained with tuning. Spencer said that auto trannys are harder to dyno and get accurate numbers than sticks. But I was just wanting a base so I can compare future mods and their gains. So over all I am happy with my base dyno.I also did a couple 1/4 mile run on the dyno and that was a paultry 19.01 and then 19.06 due to crappy launches. I have never done a 1/4 run before either, so that was cool to do. I didn't get my 60 foot time though. I can't wait to dyno again soon!! Here is a Video of my Dyno Run:

NICE! its going to be sweet to see what gains you get with the unichip! cant wait

pretty neat isn't it. the roll test machines at work are like that you drive 60 MPH checking all kinds of stuff on the truck like: up shift, down shift, A/C function, hard excell, cruise control ect...

Yeah, it was cool! I got to drive it during the 1/4 mile runs. That's why they were so bad.

hey theres like a smudge on your dyno sheet!!! Nice... i thought you had an 04 or 03? nice numbers... sounds cool

No offence intended but what a slug! Makes me wonder how bad mine is?

Of course it's slow! It's an AWD!

Man that looks awesome! I also can't wait to see the improvements with the Chip in.

That is better than I thought it would be. Did all 4 wheels turn at the same time? I will be looking forward to the chip numbers.

Quote, originally posted by Digger »That is better than I thought it would be. Did all 4 wheels turn at the same time? I will be looking forward to the chip numbers. Yes it was an AWD dyno. All 4 wheels turned at exactly the same speed. I confirmed that with them.

very cool brian id like to get a dyno done aswell. just need to find time...

Wow, that's a sweet setup... I had never thought about a special dyno for you AWD folks, neat!Were they able to tell you the power split between the front and rear?

Quote, originally posted by binary »Wow, that's a sweet setup... I had never thought about a special dyno for you AWD folks, neat!Were they able to tell you the power split between the front and rear?No it only measures the hp/tq on one axle. The other is to just make sure it spins the same as the front.

BC, thank you! this is why i'm making Mav run his vibe at the test n tune drag strip this weds eve! i want to get a baseline for the unichip before it's installed. as it stands, it'll be off because he's got his CAI and exhaust. I have a G-tech RR and will be downloading the info for both our cars.... then we'll do it again once we get teh unichip installed on his vibe. i want to see what kind of numbers we'll really actually see. I only wish i'd been able to do this last year with my car stock and then do it again after the ECM and catted pipes. i can see the 1/4 ET times diff, but to see est power and torque...too bad there isn't an AWD dyno up here. i'd love to do the same on mine...

Quote, originally posted by BlueCrush »No it only measures the hp/tq on one axle. The other is to just make sure it spins the same as the front.How could they accurately determin the amount of power your AWD was putting out then? Maybe I'm confused but it sounds like they wouldn't be able to tell how much power the other axle was getting, so your readings would be lower.

ok, i see. yes, you're not going to get a totally accurate measurement then. however, if it's the same place you'll be doing your tuning, then it doesn't matter. all dynos are different anyways, so to get the most accurate, you'd have to have the same car on the same dyno on the same day.... air, temp, heat, all of that matters when you dyno. some dyno's report higher gains while others seem to be lower. the point is that if you dyno on the SAME system with the SAME car, you need to get a baseline before you mod. then when you go back to that same system to rerun your dyno, you will get an accurate calculation of the improvements. what really matters is the difference between run 2 vs run 1.

Binary: I know that it is belt driven so the rears match the front and the measurement is take only off the front. Here is the dyno that was used: http://www.mustangdyne.com/MDAWD500SE.htmHope: Exactly! I wish I could have gotten dynoed when I was completely stock, but that didn't happen so I can only go from here on out knowing what my gains are for future mods.

yep, once we get phil's vibe loaded and the info on the g-tech ready for use, we can start figuring out where the gains are if any and how much.

I don't speak metric that well. What does that torque = in .... ft/lbs. ?????

Tha torque numbers are in ft/lbs. - I just didn't feel like writing ft/lbs 20 times.

I added my A/F Ratio graph to the first post. It can be leaned out a little bit to get more power, not too much more though. Ideal is 12.5 across the board.

160 ft/lbs......no way!?!

Quote, originally posted by jasonvibe »160 ft/lbs......no way!?!LOL! That was because it downshifted during the dyno run. But there is that much torque when it downshifts though.

Your gonna love the Unichip. Will really squeak the most from your mods.

now I see looking at the sheet you posted. the FT/LBS., foot - pounds. Which is the correct terminology. I hear people all the time saying pound - feet. WRONG...I say ...just look at any torque wrench...ft./lb. on the handle. If people only knew what they were saying...and what it means. That 160 ft/lbs. because of the auto trans. is definately a 1st gear only possibility... NO wonder mine pulls so hard in 1st. Makes it touchy going up the ramps when doing an oil change. thanks...