VW Vortex - Volkswagen Forum banner
1 - 20 of 29 Posts

Neufurstenhutte

· Registered
Joined
·
331 Posts
Discussion starter · #1 ·
I am very interested in getting the GIAC X+ sofware. I asked AWE if what I was running on my car right would be OK. Basically a Forge 007DV and a 3"-2.5" Milltek turboback exhaust. The fellow mentioned that GIAC DOES NOT recommend a 3" exhaust. Does anyone here have this setup, GIAC X+ and any 3" DP exhaust? I am just curious why a more "open" exhaust is not recommended. Thanks in advance.
 
Re: GIAC X+ and Milltek exhaust not a recommended combo?!... (Neufurstenhutte)

3" might be a little overkill, ie-unecessary for stock turbo, but you'll be fine. milltek makes a nice catback but i think their d/p is pricey. i've got a NIB 3"ghl d/p i'll be selling. send an im if interested.
 
Re: GIAC X+ and Milltek exhaust not a recommended combo?!... (petesell)

the 3" makes more power then the 2.5" throughout the entire powerband so i wouldn't call it overkill....plenty of people run that chip w/ 3" TB's
 
Discussion starter · #5 ·
Re: GIAC X+ and Milltek exhaust not a recommended combo?!... (QuickK03Crap)

Wow, thanks for the quick replies. I figured surging would be the only issue, but other than that, I just want to make sure this combo will work great and the performance of the chip won't be compromised! Thanks again guys
Image
Image

P.S. I don't have a full 3" turbo-back. It is Milltek's 3"-2.5" downpipe and then 2.5" catback.


Modified by Neufurstenhutte at 2:51 PM 1-24-2006
 
Discussion starter · #8 ·
Re: GIAC X+ and Milltek exhaust not a recommended combo?!... (QuickK03Crap)

Quote, originally posted by QuickK03Crap »
If 3" TB is fine, why wouldn't 3" DP to 2.5" catback? lol

I don't know, just figured I throw it out there. I have been bouncing between the GIAC X+ or the Revo Stage 2.
A guy at work has GIAC (not sure of the software version - 2002 20valve 1.8T jetta) and let me test drive his car. The car pulled insane in 1st, 2nd, 3rd and 4th gear. I see also the Revo Stage 2 gets similiar gains and smoothness as well. Choices choices choices
Image
 
Discussion starter · #14 ·
Re: (QuickK03Crap)

Quote, originally posted by QuickK03Crap »
I would regret going REVO too. lol What did AWE, a GIAC dealer, do, that turned you on to REVO?

They stated that with a 3"-2.5" inch turboback they have seen destroyed turbos due to overspooling, hence the large amount of posts with people peaking at 24-25psi. I have read about 100 posts about how the X+ has bad surging issues at half throttle and during normal driving.
You say that I will regret REVO...why? Open ended opinions really don't do anything for me.
Overall, I don't want a blown turbo. This is from AWE directly.
The reply from AWE:
[GIAC does not endorse the 3" downpipe. We have see some turbo failures due to overspooling. They are very adamant about not running a 3".
Mike
I wrote:
Hello Mike,
Will having this 3"-2.5" exhaust have negative feedback on the overall performance of the software? In other words, its surging the only issue with having this exhaust? Thanks for the quick reply.
Mike]

Reason I am considering REVO is that the stage 2 is "tailored" to having a DV, exhaust, intake and FPR.


Modified by Neufurstenhutte at 8:58 PM 1-24-2006
 
Re: (Neufurstenhutte)

Well I went from 14K miles to 92K miles on GIAC programming and a 3" turbo back. Guess what, no blown turbo here. All those miles had an MBC on the car too, holding more midrange boost than chip/N75 would. Only reason the turbo went bad at 92K miles was because I was running open inlet and the turbo ate a loose wire from my non completed EBC install.
Image
And even then, with bent fins, the turbo has made it to 112K miles, still spiking at 20+ psi. Most of the turbo's healthy life I saw spikes from 22-24. And no drop after the spike, just a taper to redline. Lots of drag racing, several road courses, just a hard life all the way around. And guess what, no blown turbo here. Take that for what it's worth. A turbo's life is dependent on it's maintenance. Good synthetic oil, changed regularly, and a turbo that's idled down when you've been hammering on it will last a LONG time regardless of the software in the ECU.
Image
 
Discussion starter · #16 ·
Re: (QuickK03Crap)

Quote, originally posted by QuickK03Crap »
Well I went from 14K miles to 92K miles on GIAC programming and a 3" turbo back. Guess what, no blown turbo here. All those miles had an MBC on the car too, holding more midrange boost than chip/N75 would. Only reason the turbo went bad at 92K miles was because I was running open inlet and the turbo ate a loose wire from my non completed EBC install.
Image
And even then, with bent fins, the turbo has made it to 112K miles, still spiking at 20+ psi. Most of the turbo's healthy life I saw spikes from 22-24. And no drop after the spike, just a taper to redline. Lots of drag racing, several road courses, just a hard life all the way around. And guess what, no blown turbo here. Take that for what it's worth. A turbo's life is dependent on it's maintenance. Good synthetic oil, changed regularly, and a turbo that's idled down when you've been hammering on it will last a LONG time regardless of the software in the ECU.
Image

Thanks! I just wanted some justification to why people mention to avoid REVO. Have you used REVO before? I was also just curious why the installers (i.e. AWE) would mention blowing a turbo with a more open exhaust. I see many people have it, the X+ that is, and love it. What is the MBC you are talking about? Is that a boost controller? Do you have any other modifications along with the X+ like 4bar FPR, upgraded injectors, etc...
Image
 
I don't have any overspool with my set up.
But then again I'm depending mostly on timing for power. My boost is set to 15-16...
 
Re: (-Khaos-)

3 inch will always make more power, period. i had a 3 inch downpipe with a 3 inch boost activated dump, which is pretty much as free flowing as your gonna get, and it was great. gobs of power and no ill effects.
 
Re: (QuickK03Crap)

Quote, originally posted by QuickK03Crap »
Only reason the turbo went bad at 92K miles was because I was running open inlet and the turbo ate a loose wire from my non completed EBC install.
Image

Image
http://****************.com/smile/emthup.gif
 
1 - 20 of 29 Posts