DYNO NUMBERS: For the G2 Cpe/Sdn Modded/Unmodded - Page 11

kotetu · 11-13-07, 06:31 PM

re-dynoed on a dynojet - the guy told me he had the latest model of the dynojet (model 248x: above ground, 2000 horsepower), and from his experience, it typically read 10 hp and 10 tq below what the older dynojets read. He said he believes the larger, heavier bearings are the cause.

I am going to speak to some other dyno operators to try to verify this, but for now, with that in mind, I've bumped up the line on the following images by 10hp and 10tq, so it reads 222.5whp and 208.4wtq peak.

http://i165.photobucket.com/albums/u..._dyno_full.jpg
http://i165.photobucket.com/albums/u...w_dyno_800.jpg

If the idea of bumping it up by 10 to compare it to the old dynojet is accurate, then I have gained roughly 17wtq and 18whp from the pulleys, flywheel/clutch, CAI, and chip.

thoughts?

Forevralegend · 11-13-07, 06:41 PM

Quote:

Originally Posted by kotetu

re-dynoed on a dynojet - the guy told me he had the latest model of the dynojet (link above ground, 2000 horsepower), and from his experience, it typically read 10 hp and 10 tq below what the older dynojets read. He said he believes the larger, heavier bearings are the cause.

I am going to speak to some other dyno operators to try to verify this, but for now, with that in mind, I've bumped up the line on the following images by 10hp and 10tq, so it reads 222.5whp and 208.4wtq peak.

http://i165.photobucket.com/albums/u..._dyno_full.jpg
http://i165.photobucket.com/albums/u...w_dyno_800.jpg

If the idea of bumping it up by 10 to compare it to the old dynojet is accurate, then I have gained roughly 17wtq and 18whp from the pulleys, flywheel/clutch, CAI, and chip.

thoughts?

for it to be off by ten hp ten tq across the whole band is pretty inaccurate.. i feel that thouse numbers are actually right.. no need to add the extra power that your unsure of, just leave ur numbers exactly like you got them off the dynojet.. anyways.. good numbers by the way

ps. so without you adding the ten hp and ten tq you have 212.5whp and 198.4 tq?

kotetu · 11-13-07, 06:51 PM

yes, the dyno read 212.5 and 198.4 - I think this is not a good comparison vs the other dynojet in January, that read 204/191.

Adding the pulleys, flywheel/clutch, CAI, and chip ought to produce more than 8hp and 7tq.

I'm kinda miffed that the damn dynojet doesn't read identically to the other one (per the tech's observations). I'll verify it with other dyno operators but for now I'm thinking the 10 +, though not perfect, definitely puts it in the right ballpark.

Forevralegend · 11-13-07, 06:56 PM

Quote:

Originally Posted by kotetu

yes, the dyno read 212.5 and 198.4 - I think this is not a good comparison vs the other dynojet in January, that read 204/191.

Adding the pulleys, flywheel/clutch, CAI, and chip ought to produce more than 8hp and 7tq.

I'm kinda miffed that the damn dynojet doesn't read identically to the other one (per the tech's observations). I'll verify it with other dyno operators but for now I'm thinking the 10 +, though not perfect, definitely puts it in the right ballpark.

what exactly are all your mods? just to put this in good perspective.

kotetu · 11-13-07, 07:02 PM

dynojet baseline results from Jan-24-2007: 191/181
Specs:
Stromung 2.5" cat-back

dynojet results from Jan-2007: 204/191
Specs:
'95 LS Coupe
Type 1 crank pulley
OBX Header
Stromung 2.5" cat-back

dynapack results from Nov-3-2007: 241/220
dynajet results from Nov-13-2007: 212.5/198.4 - converting it with the +10 factor makes it 222.5/208.4.
Specs:
'95 LS Coupe
OBX Header
Stromung 2.5" cat-back
SR5Guy Stage 2 chip
se7en racing CAI
Labrat Aluminum pulleys
5 speed flywheel/clutch

Forevralegend · 11-13-07, 07:15 PM

dude honestly, that seems right on. the hp mods make individually and the hp mods combined with other mods make wont just add up the hp that each mod would make by themselves. Its like me doing this with my graph..

sr5guy · 11-13-07, 07:25 PM

ROTFL

-Matt

Dv8 · 11-13-07, 07:41 PM

Wheres the new dynojet dyno graph unmolested??

Honestly If I were you I would be ecstatic with 212whp and 208wtq with your level of mods. It sounds spot on. Looks up Kenso's dyno history and Forevralegend's.

Everyone goes for Peak numbers and its good for bragging rights. Like Forevralegend learned on his last trip to the dyno, gains throughout the powerband tell the real story. You can gain 20whp throughout the powerband and be negative at peak in comparisons to the last time dynoed and still consider it a win.

You really need cams to tell if that Y pipe is better or worse.

Pack your bags and go to Midnight Performance in Rancho. We can have a 3-way overlay graph.. I'll still murder you all

~Dv8

Forevralegend · 11-13-07, 07:47 PM

Quote:

Originally Posted by Dv8

Wheres the new dynojet dyno graph unmolested??

Honestly If I were you I would be ecstatic with 212whp and 208wtq with your level of mods. It sounds spot on. Looks up Kenso's dyno history and Forevralegend's.

Everyone goes for Peak numbers and its good for bragging rights. Like Forevralegend learned on his last trip to the dyno gains throughout the powerband tell the real story. You can gain 20whp throughout the powerband and be negative at peak in comparisons to the last time dynoed and still consider it a win.

You really need cams to tell if that Y pipe is better or worse.

~Dv8

what? you didnt like my crayola dyno graph? He added ten hp and ten tq, so his real numbers should be 212whp and 198tq which is still really good.

Dv8 · 11-13-07, 07:51 PM

Quote:

Originally Posted by Forevralegend

what? you didnt like my crayola dyno graph? He added ten hp and ten tq, so his real numbers should be 212whp and 198tq which is still really good.

So there was a *REAL* RE-Dyno or not?

~Dv8

Forevralegend · 11-13-07, 07:56 PM

Quote:

Originally Posted by Dv8

So there was a *REAL* RE-Dyno or not?

~Dv8

yes there was a real re-dyno, hopefully he will post it up. big difference over the dynopack!

kotetu · 11-13-07, 08:52 PM

Christian - I screwed up my post: the new dynojet read 212.5/198.4. Here's the unadjusted graph. I think it's pretty clear that this new dynojet reads lower than the old dynojet. I guess I should send off an email to the manufacturer to ask them about it.

foreva - Are you telling me that you think lightened pullies (kyle dynoed at 10whp gain), a 5 speed flywheel/clutch (18-19 pounds lighter?), the CAI (from the bone stock intake with resonator) AND a bayou stage 2 (thanks sr5guy) together should only produce 8whp? Sorry, i don't agree. The OBX picked up 13whp without any of the above. If anything, synergy tells us each of the items I added should help eachother out a little, so even if they individually were only 2 hp items, working together they should produce MORE than 8hp, not just 8 or less than 8.

The dynapack place I went to is highly respected. He's posted a detailed explanation of the differences between dynojets and dynapacks. His methodology (link) puts whp number for my car somewhere between 225 and 230, and wtq somewhere between 210 and 215. Now I've gone to a dynojet dyno where the operator tells me that based on his experience, on the earlier models I probably would have read somewhere along the lines of 222/208.

I think I am safe in saying the whp is in the ballpark of 220-225 and the wtq in the ballpark of 210-215. I could go drive down to MD Automotive and get a 3rd dyno done on the old dynojet. Then again, maybe you guys should get your cars dynoed on a new dynojet too.

kotetu · 11-13-07, 09:44 PM

Perhaps I will go back to MD and test the car on the 248. FYI guys, here's an article where they tested Dynos on a stock 350z:
http://www.turbomagazine.com/tech/03...ash/index.html

Code:

Turbo Magazine Dyno Dash Comparison Chart
Dyno		HP	TQ
Dynapack	249.4	242.8
DTS		257.6	556.5*
Dynojet (Win)	235.8	227.8
Dynojet (DOS)	243.7	237.2
Clayton		265.7	240.6
Super Flow	228.9	226.6

You'll notice that both dynojet 248s were within 15whp and 15wtq of the dynapack. If I take 15 off of the 240/220 reading I'm looking at 225/205. i guess that lines up more with what you guys were saying about torque at least.

Forevralegend · 11-13-07, 11:15 PM

Quote:

Originally Posted by kotetu

Perhaps I will go back to MD and test the car on the 248. FYI guys, here's an article where they tested Dynos on a stock 350z:
http://www.turbomagazine.com/tech/03...ash/index.html

Code:

Turbo Magazine Dyno Dash Comparison Chart
Dyno		HP	TQ
Dynapack	249.4	242.8
DTS		257.6	556.5*
Dynojet (Win)	235.8	227.8
Dynojet (DOS)	243.7	237.2
Clayton		265.7	240.6
Super Flow	228.9	226.6

You'll notice that both dynojet 248s were within 15whp and 15wtq of the dynapack. If I take 15 off of the 240/220 reading I'm looking at 225/205. i guess that lines up more with what you guys were saying about torque at least.

agree to disagree

but you cant just say you have 225 hp and 205 torque without a real dyno of that, its like me saying i should be at my red crayola line and call that my new numbers.. im not trying to be mean or anything.. but anyways great numbers none the less.

Alperovich · 11-14-07, 12:00 AM

Quote:

Originally Posted by Forevralegend

agree to disagree

but you cant just say you have 225 hp and 205 torque without a real dyno of that, its like me saying i should be at my red crayola line and call that my new numbers.. im not trying to be mean or anything.. but anyways great numbers none the less.

since you really think so, lets start a dyno fund, we all could run on the same exact dyno.

You making a crayola line and the guy who dyno's cars for living are two very different things. He is making a basis on something that has shown to be otherwise,

WHILE, we cannot say for sure that aaron is putting down 225/205 we CAN however estimate this. Just like we can make a fair assumption that my car doesn't only have 184hp/173tq but probably closer to 204+/193+ based on what we already know these motors to put down.

i have $5 ready to donate to aaron to run on the same dyno as you and DV8.