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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Any Feedbacks from GIAC S2 users?



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      12-14-2010, 02:44 PM   #23
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Stg 1 user here.....no codes for 6 months of having the tune and from what I read, no one has a issue. This tune is safest IMO too. I'm going Stg 2 this spring when the weather breaks...
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      12-14-2010, 04:23 PM   #24
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Quote:
Originally Posted by tmdb335 View Post
I have Giac stage 2 and stage 2 race. Both maps are incredible and so smooth. Giac Stage 2 pump feels like my JB3 did on map 7 and Giac stage 2 race is faster than my jb3 was even on map 8,9,or 10 both using 100 octane plus meth.
Yeah right, doesn't giac doesn't go over 17psi?
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      12-14-2010, 04:29 PM   #25
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Originally Posted by Iwantm3 View Post
Yeah right, doesn't giac doesn't go over 17psi?
It works on torque targets, so it tries to do whatever boost is necessary to accomplish the targets. It may go around 17 if your IATs are very high, but if you have a good intercooler it doesn't go over 16.5psi.
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      12-14-2010, 04:40 PM   #26
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Quote:
Originally Posted by Iwantm3 View Post
Yeah right, doesn't giac doesn't go over 17psi?
The most I have seen is 16.5 psi.
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      12-14-2010, 04:48 PM   #27
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so procede v4 or jb3 with 18ohm board will be stronger than giac stage2 race then ?
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      12-14-2010, 05:23 PM   #28
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Quote:
Originally Posted by Iwantm3 View Post
Yeah right, doesn't giac doesn't go over 17psi?
Haven't seen it yet.
The other day when i ran my 60-130 times, I logged pressure and saw peak 15.805 psi.

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Originally Posted by Iwantm3 View Post
so procede v4 or jb3 with 18ohm board will be stronger than giac stage2 race then ?
Stronger? not necessarily.
Higher boost? maybe and probably.

higher boost doesn't always mean more power.
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      12-14-2010, 05:30 PM   #29
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Quote:
Originally Posted by Iwantm3 View Post
so procede v4 or jb3 with 18ohm board will be stronger than giac stage2 race then ?

I dont know if the V4 would be stronger because I have never had one to compare with. On another note, my buddy has a Jb3 with the 18ohm board and rode in my car and said our cars felt about the same but only one way to find out lol. I personally dont care which tune offers the most power. I care about the smoothest and safest power along with consistency which was my biggest gripe with the Jb3. All the tunes offered Giac, V4, JB3 are all great. Its just a matter of personal preference and for me since I am not a tuner by any means Giac fit the bill.
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      12-14-2010, 05:43 PM   #30
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Quote:
Originally Posted by Mr. 5 View Post
Haven't seen it yet.
The other day when i ran my 60-130 times, I logged pressure and saw peak 15.805 psi.



Stronger? not necessarily.
Higher boost? maybe and probably.

higher boost doesn't always mean more power.
I don't know, if it was the same power with meth I would of went for GIAC since I think flash is better than piggyback, but I'm really afraid I will lose power over v4, since I'm the ultimate street racer ahaha ;] , I don't really care for boost gauges and all that stuff anyway.
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      12-14-2010, 05:44 PM   #31
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I wish there was a stand alone unit so we can properly dyno tune our cars
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      12-14-2010, 05:48 PM   #32
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Quote:
Originally Posted by Iwantm3 View Post
I don't know, if it was the same power with meth I would of went for GIAC since I think flash is better than piggyback, but I'm really afraid I will lose power over v4, since I'm the ultimate street racer ahaha ;] , I don't really care for boost gauges and all that stuff anyway.
On the GIAC graphs, there is a huge difference in the power under curve between the Stage 2 and Stage 2 Race. I think that the 20whp extra doesn't tell the whole story. Can't wait to have my meth kit installed
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      12-14-2010, 09:03 PM   #33
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Quote:
Originally Posted by tscdennab View Post
On the GIAC graphs, there is a huge difference in the power under curve between the Stage 2 and Stage 2 Race. I think that the 20whp extra doesn't tell the whole story. Can't wait to have my meth kit installed
lol Hurry up
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      12-14-2010, 09:31 PM   #34
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Quote:
Originally Posted by tscdennab View Post
On the GIAC graphs, there is a huge difference in the power under curve between the Stage 2 and Stage 2 Race. I think that the 20whp extra doesn't tell the whole story. Can't wait to have my meth kit installed
you will love having meth. I daily on stage 2 race lol. Its awesome.
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      12-14-2010, 10:13 PM   #35
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since we are talking about meth does meth help with the carbon build up? took apart my head and saw my intake valves and these cars really build up carbon fast.
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      12-14-2010, 10:14 PM   #36
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any suggestions on how to keep the carbon off? does that BG induction flush work?
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      12-18-2010, 03:57 PM   #37
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Bump for updates on v4/jb3 vs giac. Im 18ohm and have trapped as high as 119mph with a 6mt and the smoothness is attractive but i don't want to lose power. Any advice?

Also how much is it?
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      12-18-2010, 04:15 PM   #38
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Quote:
Originally Posted by Mr. 5 View Post
Haven't seen it yet.
The other day when i ran my 60-130 times, I logged pressure and saw peak 15.805 psi.



Stronger? not necessarily.
Higher boost? maybe and probably.

higher boost doesn't always mean more power.
Actually, if you ahve the octane, it does. Piggy cars run up to 20 psi with full ignition, that will ALWAYS outperform a 17-18psi with full ignition
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      12-18-2010, 04:37 PM   #39
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Quote:
Originally Posted by Clap135 View Post
Actually, if you ahve the octane, it does. Piggy cars run up to 20 psi with full ignition, that will ALWAYS outperform a 17-18psi with full ignition
You bring up 20 psi like everyone is running that.
You always seem to compare the 20 psi piggy to GIAC instead of comparing the normal daily driving piggy with GIAC.
I would love to compare my daily driving GIAC on 91 meth with any of the piggysa with the normal maps.

Point being that 15.8 psi peak will not necessarily be slower than 17 psi peak with the piggies.
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      12-18-2010, 06:05 PM   #40
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Quote:
Originally Posted by onefastman View Post
Bump for updates on v4/jb3 vs giac. Im 18ohm and have trapped as high as 119mph with a 6mt and the smoothness is attractive but i don't want to lose power. Any advice?

Also how much is it?
With manual you should deff try the procede, people who switched love it , but you better ask them.
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      12-18-2010, 08:29 PM   #41
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Quote:
Originally Posted by Mr. 5 View Post
You bring up 20 psi like everyone is running that.
You always seem to compare the 20 psi piggy to GIAC instead of comparing the normal daily driving piggy with GIAC.
I would love to compare my daily driving GIAC on 91 meth with any of the piggysa with the normal maps.

Point being that 15.8 psi peak will not necessarily be slower than 17 psi peak with the piggies.
BINGO! The driveability of GIAC is simply outstanding!

There are certain users here who seem to be concerned mostly about who has the fastest sledge hammer on the drag strip. I understand it, just like I understand people who would spend all of their money on interior/exterior modifications. Whatever floats their boat... The problem is that there are too many damn zealots in the PROCEDE and BMS camps here who constantly try and talk smack about any other competing product.

This brings me to another point here: I have great respect to people who have extensive technical knowledge of any sort (this includes Shiv even though I will never give my business to him). Even more when it comes to tuning engines. What bothers me the most is that it is exactly those people who posses that extensive knowledge that are the most obnoxious commenters here.

We are all here in those forums to learn and exchange information. I am sorry but if a bunch of engine geeks come here and constantly say stuff like "You are an idiot, go do some research." or "This is not how engines work and you should research more" are very annoying with their comments. They are annoying because they are not explaining anything and they are not sharing anything.

Yes, there is a lot of misinformation floating around and I agree that this is often a bad thing. The ONLY way we can rid ourselves of false information and false assumptions is by having the people with the extreme technical knowledge SHARE it in such a way that it is easily palatable for the rest of us.
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      12-18-2010, 09:33 PM   #42
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Agree I wish people were less puppets of a tune or any mod their running but actually discussed and analyzed more on what's better.
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      12-19-2010, 03:03 AM   #43
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Quote:
Originally Posted by Mr. 5 View Post
You bring up 20 psi like everyone is running that.
You always seem to compare the 20 psi piggy to GIAC instead of comparing the normal daily driving piggy with GIAC.
I would love to compare my daily driving GIAC on 91 meth with any of the piggysa with the normal maps.

Point being that 15.8 psi peak will not necessarily be slower than 17 psi peak with the piggies.

+1

quality psi vs. quantity psi on a 30k -50k BMW ?
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      12-19-2010, 04:16 AM   #44
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+10000 I have a jb3- but I knew very little when I bought it. am not saying it is bad, but I am learning more (though it is hard to sift through all the BS). I plan on keeping my car awhile, so I want what is best for the car long term. I hate that almost every post I read, I have too consider who wrote it and their motives. It's like the freakin dems/republicans in here and you giac guys are the new third party.
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