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Stock boost

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Stock boost - 4/13/2008 2:36:53 PM

WeezyTT

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how many pounds of boost does the 2.7t put out stock?

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RE: Stock boost - 4/13/2008 2:53:23 PM

madrussian

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Joined: 11/19/2007
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X2 same here, and how many pounds after apr chip, giac chip?

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2003 redfire svt cobra coupe. 495 rwhp 498 rwtq. 11.9@121mph 1/4 on street d/r tires. UP FOR SALE.

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Post #: 2

RE: Stock boost - 4/13/2008 3:06:53 PM

trapped

Posts: 650
Joined: 1/29/2008
From: St. Louis, MO
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I know that the chip produces about 1.0 BAR or about 14.5 PSI and I think stock is around 7 or so. I am certin about the chip, but not about stock.

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2000 A6 2.7t
Tiptronic
APR Chip, 710n DV's, K&N drop-in, 00022 tip re-code.
Planned: Nothing :(

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Post #: 3

RE: Stock boost - 4/13/2008 3:13:28 PM

Retard Riot 686

Posts: 289
Joined: 7/17/2007
Status: online

quote:

ORIGINAL: trapped

I know that the chip produces about 1.0 BAR or about 14.5 PSI and I think stock is around 7 or so. I am certin about the chip, but not about stock.

that stock sounds about right i believe

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Post #: 4

RE: Stock boost - 4/13/2008 3:26:44 PM

madrussian

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Joined: 11/19/2007
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Do all or those chips produse same amount of boost? And what is the most efficient range for k03 as far as power but without hurting turboes or motor?

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2003 redfire svt cobra coupe. 495 rwhp 498 rwtq. 11.9@121mph 1/4 on street d/r tires. UP FOR SALE.

(in reply to Retard Riot 686)

Post #: 5

RE: Stock boost - 4/13/2008 4:07:14 PM

trapped

Posts: 650
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From: St. Louis, MO
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I have seen people running around with 20+ psi and no problems. Obviously more pressure = greater risk of blowing a turbo. You CAN operatre at 20+, but 14.5 is a good level to boost at.

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2000 A6 2.7t
Tiptronic
APR Chip, 710n DV's, K&N drop-in, 00022 tip re-code.
Planned: Nothing :(

(in reply to madrussian)

Post #: 6

RE: Stock boost - 4/13/2008 9:48:32 PM

formulagigi

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Joined: 4/23/2007
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20 is a lot for KO3's and reliability. Sure it'll work but how long...
APR is indeed 1 bar. I think GIAC is 1.2 bar... is that 17 PSI? I would not go higher on KO3s, actually I don't run the GIAC chip or VATS just b/c I don't want more risk on my turbos.

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2004 A6 Stg 2+ and 99 TJ...mod

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Post #: 7

RE: Stock boost - 4/13/2008 9:51:57 PM

trapped

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From: St. Louis, MO
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1.2 bar is 17.4 psi, come on Gigi how do you not know that... Just kidding I'm taking a physics class and we always have to convert units and Psi-Bar is what we did in january!

_____________________________

2000 A6 2.7t
Tiptronic
APR Chip, 710n DV's, K&N drop-in, 00022 tip re-code.
Planned: Nothing :(

(in reply to formulagigi)

Post #: 8

RE: Stock boost - 4/13/2008 10:45:09 PM

formulagigi

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Hey I was close with my estimate at 17 lbs :) What's .4 lbs of boost among firends ! ;)

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2004 A6 Stg 2+ and 99 TJ...mod

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Post #: 9

RE: Stock boost - 4/13/2008 10:48:56 PM

trapped

Posts: 650
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From: St. Louis, MO
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haha, very true I guess I'll let you slide

.

_____________________________

2000 A6 2.7t
Tiptronic
APR Chip, 710n DV's, K&N drop-in, 00022 tip re-code.
Planned: Nothing :(

(in reply to formulagigi)

Post #: 10

RE: Stock boost - 4/14/2008 1:22:28 PM

joetm

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giac u can run a manual boost controller which ive seen 20+ i will quote price from vast performance "i have a manual boost controller and its cranked like im tryin to blow my $h*t up!!"

get a boost gauge b4 u do anything

also to answer the original question of how much is safe / reliable ... the stock amount lol thats how the car was designed

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-Joe

2002 a6 2.7t / GIAC / REMUS / AWE-Tuning s-flo intake / bailey's DVs / vast stage 3 tip chip /vast piggies / obx manifolds / k04's and rs4 ecu platform to come soon!

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Post #: 11

RE: Stock boost - 4/14/2008 8:16:38 PM

nothing77

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From: Calgary Alberta
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stock boost = 8 to 9 psi
Apr boost = approx 14psi
Giac Boost = approx 15psi

The difference in the APR and the GIAC programming is how long it takes to reach peak boost. APR tends to be smoother, less agressive, reaching its maximum higher in the RPM's. GIAC is somewhat spastic, boost builds fast and agressively, earlier in the RPM's. GIAC boost curve also feels more, well spastic. GIAC also offers the 1.3 bar x chip, very spastic, full 19-20 psi at 3100rpm

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stage 3- A6

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Post #: 12

RE: Stock boost - 4/14/2008 8:28:38 PM

trapped

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Nice. Nothing is you car a TIP? Also where is that x-chip offered? I really am disapointed with apr. I think I should have gone with giac from the start.

_____________________________

2000 A6 2.7t
Tiptronic
APR Chip, 710n DV's, K&N drop-in, 00022 tip re-code.
Planned: Nothing :(

(in reply to nothing77)

Post #: 13

RE: Stock boost - 4/14/2008 8:40:25 PM

nothing77

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From: Calgary Alberta
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Yes it is a TIP, contact Austin at GIAC. He will be able to set you up with the latest version of the 1.3bar X flash. This flash is so extreme that I ended up installing a MBC in parallel with the N75 valve to clip the boost spike at peak. If you are going to get the 1.3bar I would recommend that you have a boost gauge. If you are running this chip on K03's it is dangerously near their limits. Good luck, have fun, race to win!!

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stage 3- A6

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Post #: 14

RE: Stock boost - 4/14/2008 10:25:22 PM

trapped

Posts: 650
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From: St. Louis, MO
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Did you have to update the tranny when you got the Ko4's. And is the x chip the same chip that comes with the k04 kit from awe tuning?

_____________________________

2000 A6 2.7t
Tiptronic
APR Chip, 710n DV's, K&N drop-in, 00022 tip re-code.
Planned: Nothing :(

(in reply to nothing77)

Post #: 15

RE: Stock boost - 4/15/2008 7:00:59 AM

joetm

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x chip is def not the same tuning needed for k04s lol ... its 1.3 bar i think the rs4 has a 4 bar fuel kit and youd need to update your fuel pump aswell ... thats how you get to 500+hp

if i have the 1.2 bar giac can i buy the x chip for like 100 bucks or whatever or do i have to spend 500 all over again

_____________________________

-Joe

2002 a6 2.7t / GIAC / REMUS / AWE-Tuning s-flo intake / bailey's DVs / vast stage 3 tip chip /vast piggies / obx manifolds / k04's and rs4 ecu platform to come soon!

(in reply to trapped)

Post #: 16

RE: Stock boost - 4/15/2008 10:45:51 AM

madrussian

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Joined: 11/19/2007
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I know that u can get APR chip with as many as 4 diffrent setings and chose what ever u like. Can u get that with GIAC? I would love to have stock 91-93 octane mode with couple more extra ponies and all balls out 17-20 psi mode on the race gas strictly. Is that posible?

_____________________________

2003 redfire svt cobra coupe. 495 rwhp 498 rwtq. 11.9@121mph 1/4 on street d/r tires. UP FOR SALE.

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Post #: 17

RE: Stock boost - 4/15/2008 10:55:38 AM

Costner

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On a somewhat related note, I had the dealership perform a pressure test on my turbos to check for leaks and they indicated it showed from 22-25psi at wide-open throttle.

How exactly does this factor in to this and is this range 'normal'?

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Post #: 18

RE: Stock boost - 4/15/2008 2:35:37 PM

nothing77

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From: Calgary Alberta
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I do not have an upgraded tranny. I am running the 1.3 bar chip with a 5bar FPR. And yes GIAC is quite good about minimal cost for upgrading your current chip. GIAC also offers the hand flashloader which allows you to switch between purchased programming.
Costner 22-25psi may be your maximum at WOT, your turbos are essentially controlled with the N75 to the wastegate. In other words, 22-25 may be peak capability if you took the N75 out and ran a MBC standalone, this would cause issues in itself (throttle cut).

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stage 3- A6

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Post #: 19