Aiight Guy's! here's my results for my Dyno Tune Today! The guy i went to is a Local Tuner, very smart, cracked and worked on codes for the new GTR, and he's a Turbo Specialist!

My Car is an 07 G35 Sedan with just Injen CAI, FI HFC's, and Stillen Cat-back. Now I know everyone wants a Basline Numbers, after each Mod Etc. But times are Hard for everyone, and I just did not have the time or Money to do a Dyno after everymod I did! So since a couple people on here did some DYno's with the Stock G35's. Everyone should know a Stock G35 VQ35 HR Sedan, with Auto or 6MT, has run Numbers of about 250-265HP to the Wheels! So Just use that as my Base, and wit my Mods, and my Guy's Smarts. I got a final Number of exactly 280HP to the Wheels!

Not sure what that equals to?? But the G37 Coupes, are getting anywhere from 270-285 At the Wheels?, with an Intake or Exhaust alone?. So I'm hoping maybe I am now making close to 330HP, with the Motor, not at the wheels!

So here's a Pic. of my Dyno! (These Runs were all made in 4th gear! Weather was Clear, in lower 80's, with Low Humidity.)




Sorry no Torque Numbers for some reason they did not come out. I'll try ask to see if he has a diffrent sheet with those #'s! Also the 276 Baseline HP, Is I had Flashed my ECU with the Cobb AP, and Used thier "STOCK STYLE MAP" This was the best map to use out of the other 2 maps that Cobb has. Made the car run super Rich, and just drove crappy! Even thought the "STOCK STYLE" map is not made for Mods, it had the best Air/Fuel Ratio! so that's why u see a 4HP gain. Goes to show how good the Cobb "Stock Style" map is. He just needed to tweak my A/F ratios some, and heard them mention Timing? but not too sure! I gotta contact him again to make sure what he tweaked! Well thnx for Looking!

Ok went to my Frnds shop that specializes in Mustangs, or anthing with a Turbo or SC! from mild to wild! and is a good frnd of mine, so decided to try my G on his Dyno! and get more Info, since the FIrst tuner I went to, did not give a full printout, and he only had a sheet for my HP numbers! so now I have all the graphs for this dyno run!



This run was done on a diffrent day. and I know it's a diffrent day, and diffrent HP Numbers. But with that said...

The weather for this run was kinda crappy! was really overcast, not real cool, and was really Smoggy! looked like LA here! LOL. it's from the Volacano, certain wind direction blows the crap all over the Islands!

but first run was done in 4th gear, with about a 30min cooldown. 2nd run was in 5th gear, after about a 15min cooldown. only did 2 runs, since no tuning was Involved. it's not a whole lot off my first Dyno Tune of 280WHP. But at least I know what my A/F ratios are and TQ Numbers!

 

Thats not that good.

I know a few g37 coupes putting down 325-330 to the wheels with cobb, intakes hfc and exhaust.

 

yea, but my car is an 07 G35, not a G37 Sedan or coupe, which i know make higher numbers! mine is the VQ35 HR.

 

Hm... standard Dyno Jet number. 280 is pretty good.

 

That's weird, he gave you dyno graph with the vehicle speed rather than engine speed on the x-axis lol

Does the car feel any different? You would've been better off with a crank pulley.

 

Im confused, but Im not even gonna ask to explain

 

so... was your baseline before the tune, then after the tune you made 4 whp? Dynojets have a tendency to read higher then other dynos, so you're probably around 330hp to the crank now.

 

Staples, but arent others are making 330 or more to the wheels right?

 

Yes but there numerous reasons why. For one; he has a G35 which is a 3.5L engine with a 10:1 or 10: 5: 1 compression ratio. Our cars have a higher displacement at 3.7L at 11:1 compression. That plays a huge role in horsepower. Even if we all still had a 3.5 liter engine and a 11:1 ratio, we would still make more power with bolts on and tune. The higher the compression, the more power you're going to make on naturally aspirated engines.

 

oh snap forgot about that

 

hey guy's! Well yea I am kinda perplexed at my Basline Number? I gotta call my guy and double check what it was! Only thing I can think of right now, is that since I had reflashed the ECU before my dyno with the "Stock Style map" from CObb, so not sure if my Supposedly 276HP Basline run was because of this? or that map was pretty close to optimum and could only gain 4 more HP out of my car?? But remeber 07-08 Sedan guy's that did some Dyno's all had baslines HP numbers of about 255-260WHP. So I jus use that as a base HP for my car. I will call my guy tomorrow! Does sound kinda wierd thinking of it? LOL

But my car reacts like a whole diffrent animal right now! took a drive last nite to test it out, weather was pretty COLD at about 59 degrees, By hawaii Standards! LMAO. anyway I nailed my car from a stop, and 1st gear pretty much broke loose my 20inch 275 tires very easily! and hitting 2nd spun them even more than before! and third gott a pretty good spin on the upshift! and seems the throttle lag is pretty much non-existent now, power comes on like "NOW"! so gotta be more than a 4HP gain. since my car never reacted like that before. but I'll find out more info on MON, and post.

And remember this is a G35 Sedan with the VQ35HR Motor. I know if I had the VQ37 HR, i would have more power! But I'm happy for now. LOL

 

One of my team members with a 07 g35 sedan is tuned with uprev by gtm, Sam didnt even finish the tune yet, he just loaded the maps and barely messed with it and it's already hitting around 280whp on a dynojet, needs to go back to finish the tune but never gets time cause of work, took it out cause he needed the car. He's going to have them put another bolt on mod on (i forgot what it was but I think it's a custom y-pipe) and then have Sam re-tune it.

Also, again I don't know about the 07 g35 sedan compared to the 07 350z HR. But I know it's the same engine and correct me if I'm wrong same hp too.

Check out this 350z HR tuned by Tadashi at Technosquare

http://g35driver.com/forums/tuner-dy...d-hr-350z.html

Oh and that was in 08, lol!

Btw who is your local tuner, does he deal with VQs alot?

 

Cool man, keep me updated if your Buddy gets above that 280HP mark with his Sedan!

Great thread too. man not sure why, but seems the G37's and 350Z's respond more to Mods than my Sedan does? not sure if the ECU's are tuned diffrently?? Do you think my 280HP, is pretty good with the small Mods I have? If not might half to find another tuner??

But my guy I went to, has worked on alot of fast Turbo Cars, like Evo's, Honda's, STI's, and alot of G35's and 350's. and now the new GTR's! he has cracked some codes on the GTR's Computer!, so he knows what he's doing. And I'm in hawaii, wish I could go drive to Technosquare and have him tune my car! But my car don't float on water! LMAO.

 

Not true, what mods do you have? Also, what did they use to measure your air / fuel ratio? You should be seeing a lot more gains then 4whp. Something sounds weird, I had an issue with my first tuner because he used a sniffer on my tailpipe to measure my a/f, but it wasn't reading correctly because he wasn't compensating for the cats. When the car read 12.5 A/F, it was really only 12.0... So I had to take to someone that was Cobb certified and knew what they were doing. I made literally 2whp on the first tune, then 12whp on the other tune when it was done right at 12.6 a/f at wide open throttle.

 

Hey sups dude! the Only Mods I have are Injen Dual CAI, FI HFC's, and Stillen Cat-Back Exhaust. Well I'm not beliveing the 4HP gain until I talk to my Tuner. I am basing the complete gain from 250-260HP that others with a stock VQ35 HR dynoed, to my final 280WHP. maybe a complete gain with my Mods and Tune from the stock say 260HP, so a tottal gain for my car is like 15-20HP from Stock? Not sure if other's got more with same mods?

And he did use a Sniffer in my Tailpipe to measure A/F ratio's. Said the A/F ratios are in the optimum range! but I am trying to see if he has a printout showing my Tq #'s and A/F ratios. LMK what u think? should I try a diffrent tuner? I have another frnd with another Dynojet, but he s a Mustang tuner. and does wonders with them! Not sure if he knows anything about Cobb. but the guy I went to knows how to use Cobbs stuff, Tunes Suby's and whatever other cars use Cobb for tuning.