37hevn

iTrader: (1)

your first statement kills your credibility. spend some time around a dyno and youll know automatics take more power to move. usually people know that without being around a dyno but some still do. i own an auto so im not bias.

Eskrimador

You started this thread saying that the HP gains the dyno told you that your add-ons gave you didn't equate to performance then whenever someone says something about performance you refute it by bringing up your dyno experience. Which is it?

37hevn

iTrader: (1)

i didnt follow what you said. i gained dyno hp with bolt ons. 50ish. i gained time at the track from aroun 14.2 to now 13.5. my deal is with how close the STOCK ipl is to my fully moded car that gained 50 rwhp.

im refuteing the fact that someone said an automatic has more dyno hp than a manual with the same exact engine.

ReD2847

Funny enough, motortrends published times of the 2010 g37 7AT coupe shows a 0-60 of 5.4 and 1/14 of 13.9. The times they got on a 2008 g37 5AT was the same 0-60 of 5.4 and quarter mile was 14.0

And keep in mind the weight shown for the 08 was 3770 lbs vs 3694 on the 2010. The '10 they tested was the annivertsary edition as well.

Give the 5AT at that same lower weight and it will either match or possibly even beat the 7AT time. It's already matching it on 0-60 with an extra 76 lbs of weight...

Not to mention plenty of people here who mentioned that there butt dyno felt the 5AT pulling stronger due to it always running at a higher rpm. The 7 at just feels very different because of the closer gearing but not neccessarily faster in reality. It's not like times for the 08 are any different than the newer 7AT models from 09+.

cvt

wow...you gained 50rwhp and dropped your 1/4 by .7 sec? that's a totally different car. my guess the ipl fared better than you thought was it already was around 20hp up from the stock car and the suspension gave it a little better traction? did you guys launch the same or did you guys have different techniques...who knows. i wonder with all those mods you'll still be able to squeeze out more power with motordyne's plenum. hmmm...

37hevn

iTrader: (1)

yea we talked about how we were launching and they were the same. ive talked to a lot of people, the motordyne doesnt help your car like they say it does. these cars already have dual intake so they have enough air coming in, z1 told me that all the ones they installed and dynoed they removed because they lost hp and gained a little tq but not enough to make up for lost hp.

what i dont get is that the ipl gets its 18 hp from the cbe and a sportier tune. but i have stillen and uprev which will both go beyoned both of those.

also when my car's best 1/4 was 14.2 i had pulley, hfc, cbe. then the rest brought me down so that was impressive in that aspect but i was surprised how close the ipl was

the ipl suspension isnt going to help it in the 1/4 because its designed for lateral movement just like the 370z unlike camaros though that are

ReD2847

Even after mods the 08 g still did only 14.2? That makes no sense as even bone stock it's rated at 13.9-14.0 max so I'm not understanding that.

And I don't see a difference in published performance numbers between a 7at and 5at so besides mpg I doubt that's making any real difference.

I will say however that basically your g has 380hp vs an ipl with 350hp. Let's not forget that the ipl I'm pretty sure is also lighter. To me it makes sense that your only .2 faster with an extra 30hp and a bit more weight.

dagon68

iTrader: (6)

This may be a dumb question but what about fuel?

37hevn

iTrader: (1)

youre right the magazines have the g37 6mt 2008 at 13.9, but the auto will be slower. also it was hot when i ran that 14.2 but since then ive ran in the cool fall air and cool spring air. an you cant add my 50hp to the crank hp. im at 290 hp on a mustang dyno. without taking the engine out there no way to figure exact crank hp, people say its 20% less so take it times 1.2 but thats just a guess.

37hevn

iTrader: (1)

we both use 93 octance and had a similar tank level. if thats what you were refering to.

dagon68

iTrader: (6)

Yes that's what i was wondering. Thanks
I know here in Texas, Ethenol is added by law and may be up to 10%. I can deff tell a difference in power from station to station. May be another factor to consider.

kaoticdemize

iTrader: (2)

to set a record straight on this, YOU were the one that claimed that the 2 trannies had different horsepower. I should probably go back and read through all this but I am pretty sure no one claimed the automatic was making more HP. Ive stated that the auto is faster not more HP.

ReD2847

Yes the 2008 g37 6mt is rated at 5.3/13.9 vs the 5at 5.4/14.0 stock yet you still got only 14.2 even with a few mods. I suppose the hot temps could of been the reason for this.

The 2010 7at is rated at 5.4/13.9 vs the 2008 5at 5.4/14.0 and the 08 is 76 lbs. heavier (3770 lbs. vs 3694 lbs.) so I don't get how people can say the 7at is faster just from "feeling" its faster due to "tighter" gearing because the track numbers show them both being dead even.

37hevn

iTrader: (1)

someone claimed that the automatic was quicker than the manual, and unless someone edited their post which they probably did after they found out manual's have more dyno hp then someone did say that the automatics have more hp on the dyno

and as for the sedan's hp. infiniti advertises the sedan at 328 and coupe at 330. and yea the sedan weighs less but even at the factory they detune the engine in the sedan. i wish people would quit sticking up for what they drive and think its god's miracle and its better/faster than everyone elses.

ReD2847

What do you mean by detuning the engine for the coupe? Numbers show the stupid sedan is a good .3 or .4 faster than the coupe. I think infiniti making the sedan faster the weirdest thing ever...