The good and the bad: mods+uprev lost power

synolimit · 08-17-2013, 12:21 AM

Quote:

Originally Posted by Leuz

Update: engine light came on. A buddy came with an OBI-II reader. The car is complaining about the MAF sensors reading, so as I suspected somehow the car was not tuned for my large intakes or something like that ...?
I know it sounds weird but...

Not weird to me. There is zero, zero, zero reason to change the tube size on a NA car. On a turbo that's blow through, yes, but a NA, no. All it ends up doing is making the tune more time consuming to change the MAF curve around and I see no good coming from basically hacking or tricking the ecu into thinking something else with the AEM boxes. If stillen makes a 2.34" ID pipe the whole way from behind the filter to the TB, then so should everyone else since that's the ID of OEM too.

socce · 06-04-2017, 10:23 AM

Quote:

Originally Posted by synolimit

Not weird to me. There is zero, zero, zero reason to change the tube size on a NA car. On a turbo that's blow through, yes, but a NA, no. All it ends up doing is making the tune more time consuming to change the MAF curve around and I see no good coming from basically hacking or tricking the ecu into thinking something else with the AEM boxes. If stillen makes a 2.34" ID pipe the whole way from behind the filter to the TB, then so should everyone else since that's the ID of OEM too.

I am planning on getting a tune. I've had a few people recommend to me going with a CAI with a larger diameter such as the AAM 2.75" and the Admin Tuning 3" for more flow, but considering what you are saying perhaps it would be best to go with Stillen, Z1, or the like if theres no plans to enlarge the ID elsewhere. Does anyone else agree with Synolimit?

"Technically you should not having issues in R-Line mode either with a proper tune. I "think" we were not tuning the MAF scaling correctly but, at the same time, I also don't know of anybody that has successfully tuned them in R-Line. I'd love to hear from them tho "

Any updates on this anyone ? Anyone find success with this intake ?

Rusty · 06-04-2017, 09:13 PM

You running stock throttle bodies? If so, why run a larger pipe. You'll just have a bottle neck at the bodies. People have run larger pipe and said them have picked some power. But I haven't seen a dyno chart to prove it.

socce · 06-11-2017, 12:20 PM

Quote:

Originally Posted by Rusty

You running stock throttle bodies? If so, why run a larger pipe. You'll just have a bottle neck at the bodies. People have run larger pipe and said them have picked some power. But I haven't seen a dyno chart to prove it.

It looks like I am going with Synolimit's kit with ported TB at 63mm to go along with my FI TDX 18" + FI RHFC. So for intake I will decide over AAM or z1. Leaning to AAM unless I can find a reason not too. I am assuming the AAM 2.75" intake over the 2.5" Z1 should benefit but I would rather not assume. But perhaps keeping everything more consistent around 2.5" would be best. I don't know. Maybe makes no difference. Presently searching for an answer.

Rusty · 06-11-2017, 06:55 PM

If you can. Do a before and after dyno runs.

06-04-2017, 09:13 PM	#3 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,573 Drives: 2011 Nismo GM 6M Rep Power: 2684440	You running stock throttle bodies? If so, why run a larger pipe. You'll just have a bottle neck at the bodies. People have run larger pipe and said them have picked some power. But I haven't seen a dyno chart to prove it. socce likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

06-11-2017, 06:55 PM	#5 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,573 Drives: 2011 Nismo GM 6M Rep Power: 2684440	If you can. Do a before and after dyno runs. socce likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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