Here is the deal. Got a baseline dyno done on a Dynojet here in San Diego. Car had about 5300 miles then. Get the borla exhaust put on and dyno on the same dyno. Car had 5600 miles on second dyno run with borla. Did two consecutive runs on each day. Borla had slight gains but IMO is well within the band of error you can have between runs. So my personal conclusion is that I didn't gain or lose power with the borla. I also suspect that the ECU had something to do with it because on first install the car did feel noticeably faster but now my car feels as fast as stock. One thing for sure though is that the borla sounds great and is lighter than stock. So I'm not selling cause I truely believe its an ECU thing. One other thing to mention is that my car is a freak and has pulled baseline bone stock dynos of 249hp(Stillen dyno) and even on this different(Autotech) dyno I pulled a 243hp bone stock. Those are on the very high side of baseline dynos. Also all the numbers are SAE corrected.

Okay on with the dyno sheets:

Baseline runs


Borla runs


Highest Borla and highest baseline together


In the end I'm not too upset about my results cause on that same day I also got my rims and now my car now looks like this!!!

 

those are some pretty red Xs...

 

I see the pics... and damn... you car looks pimp man...

I need rims...

 

Also, these numbers are all SAE corrected.

 

so....... 4hp gain? Rims look sweet, but I'd be upset with $700 bucks for 4HP, i got 12 from my ESO true Dual, still not bad #'s though

 

Importrider: Is this the Borla TRUE DUAL exhaust or the other one?

 

Import Rider: Is this the Borla TRUE DUAL exhaust or the other one?

Thanks.

 

I was there with import during the group install. This is the dual. I actually have to agree w/ import that when the car first got the exhaust, it had some serious kick to it. Mental maybe? Dunno, but the car seems to have mellowed out to its previous self.

 

I was also there with import and ganz and have the same feeling. Still, I'm damn happy with the sound and the look.

Of course, my power seemed to disappear as soon as I went from the 101 to the 405. Four freaking hours to get home!

Are we not doing something that Borla did to get their 20+ increase? Or that webcarconnection did to get his 24+ increase? Maybe Borla dyno'd right after the install and the ECU hadn't had a chance to adjust?

All these questions and I have absolutely no clue as to the answers.

Dave

 

Oh, and thanks import, for following through and getting the dynos done. We certainly appreciate it.

 

but it sounds like he dyno'd right after the install, so the ECU shouldnt have had time to adjust, or did he drive it around for awhile? a hot engine can rob alot of power, were the conditiosn the same at both times of the day? ie.........65 degrees in the morning and low humidty, and then 90 degrees and humid as hell during the day.

For borla to TRULY get a baseline, you need an A/C'd constant environment. Weather and temp affect the #'s too much

 

wow, those rims man... just wow... where can i order? how long to get em? wow

 

Finally...some REAL unbiased result from the borla dual system!!! Good or bad this is the post i've (most ppl) been waiting for. How are ppl gonna defend borla's advertised 20+hp gain now?

ohh...btw...thanks for the info...now it makes my purchasing decision easier.

 

It looks like from his post that there were about 300 miles put on after the install. I know he put on at least 140, since it was that far from the shop in Canoga Park back to San Diego.

Baseline dyno on Friday, second dyno on Tuesday, looking at the date/time stamp on the sheets.

 

Holy F*****g S**t...a legit dyno comparison...finally...thank you! I need a cigarette. Sorry it didn't make power for you. I found the 20whp hard to swallow...that would even be a lot on most factory turbo cars...I guess it's just more manufacturer BS. Based on the Borla hysteria that swept this board and others, I'm assuming they've already sold enough of these exhausts to cover development costs. Ah well...time to start looking for the next holy grail.
At least it sounds/looks good and you dropped some weight.

Those rims are really sweet. They give the Z a very Porsche 911 style look...similar to all the Fikse wheels those guys run at the track (road courses, not drag strips). I was considering something in that style, but decided I wanted something easier to clean! I hope it doesn't rain much in your area!

 

OK, OK, OK........Tomorrow I am doing baseline dyno and then installing the Borla duel. I was going to drive it a little and then get back to the dyno in the same day. But now i will dyno precisely after the Borla, don't have to drive anywhere, and see where it is. If i can possibly get back to the dyno sometime thereafter when/if the ECU steals back any gained HP i will do so. I don't know what to believe as far as this ECU mod learning theory goes. But it is time to find out. By the way the dyno I will be using is a very conservative dyno. So the baseline should be lower than what you would expect, but no matter. Wheel Dyno's are only good for camparison and not for actual/true WHP.

 

seems like he lost 3.5ft-lb of torque when compare best base run and borla run..

anyway, I still believe this is the exhaust for me, since it has 3 things..

(1) best price
(2) true dual exhaust
(3) lesser weight than factory
*bonus* sounds better than factory (which I think it's hard to do!)

mine should be here tomorrow, and I know I'm gonna enjoy it!

 

Well there were about 4 days and 300+ miles between the two dyno days. I agree with the having a controlled environment for each run. I can say that it was a slightly warmer day when I dynoed the Borla, but its just what I felt not what I know. Also, one other thing to mention is that there was no dead time in between the two runs on the same day. They were done back to back.

 

The reason the Borla dyno is so low is because he forgot to fill up with the high octane gas he's been using on all his other baseline pulls. C'mon import give it up you can tell us your secret
Those rims look f*ckin' bad *** on your car!!!

 

throbbing_Zon, your the man I was waiting for. If you do what your saying, my results and your results combined will give us the real deal on this exhaust and our ECU's. So if you see no gains too then I would have to conclude that the exhaust does nothing. If you do see gains(more than 8hp or so) I would have to say our ECU SUCKS!!!

 

Hehehe...failsafe, I told you its the Fairlady Z emblem!!!! By the way bro, your the reason why I spent another $300 on my car. I just bought the damn EDFC after seeing yours.

 

I put 3500 miles on my Stillen exhaust between dynos and the results were the same both times. So I really dont buy into the ECU talk. I would not be happy with these numbers after hearing about 25hp 15 tq gains from Borla if I bought one of these. Hopefully with all of the" soon to come dynos" someone will show some real gains.

Oh yah those wheels look SICK !

 

Hahaha- John got me started and now I can't stop. So you can indirectly blame big pimp daddy J for the empty wallet

 

Hey guys!

First... all the cars are not the same!
Here in P.R. is always 90+ degree (All year) so the car feels the same no matter what time of the year. I dyno w/o Borla a few month ago, so the #'s of the Borla are in theory... I already said that I don't have a real baseline dyno and hope for someone do a good baseline and see good gains.... Maybe I was wrong, I don't know. the thing is that this is the first "Real" dyno of the system.... only time will tell!!!

P.S. I race the 350Z of my friend with AEM and Stillen Exhaust and I was 2 cars ahead the four times we run... so I'm happy with my System.

 

i love the rims!! anyone wanna get me an early christmas present??!

 

What does that actually mean? SAE corrected

 

I was wondering. How much WHP do heavier 19" wheels and 19" x P275 tires steel from the Z compared to the stock 18"s? Anyone have any idea? That probably has a little, or even a lot , to do with it.

 

You nailed it. Thats definitely the reason for the loss of power if he dyno'ed with the new wheels. Big wheels SUCK power away.

 

Yeah, I was just gonna post that wheels will rob a lot of power. Reason being is he had the track wheels before which are around 18lbs each, right? Well, I'm sure those SF Winnings aren't very light. Probably around 25lbs each or somewhere around there. It doesn't sound like a lot, but unsprung weight matters a lot to performance and it's just more dead weight for the engine to turn (I think for every pound of unsprung weight, it's like adding 3lbs to the car). Oh yeah, the 19" tires probably are a lot heavier too since they're most likely wider. Hey Lyndon... go weigh your track wheels with tires and then weigh the SF Winning's to tell us the weight difference. But other than potential loss of power, THOSE WHEELS ARE SICK.

 

Well, I should be able to kick in my .02 worth Saturday.

My Borla Dual is getting put on as I type this. When I pick up my car today, it will drive directly home where it will sit until I go to the dyno shop on Saturday. Total driving distance will be something like 25 miles.

This is the same shop where I dynoed right at 230 bone stock. Since then, I have done absolutely nothing to my car except tint the windows. No CAI yet, no grounding kit yet, original wheels on the car.

If I can get worked in on Saturday, I'll post the before and after dynos.