boost creep - Page 2

La Mer · 07-14-2008, 08:07 PM

Commonly used Acronyms
What is boost creep?
Boost Spike vs. Boost Creep the real deal
Boost Creep... What is it?

La Mer · 07-14-2008, 08:14 PM

Quote:

Originally Posted by BatMobile07

yea. thanks man. i would greatly appreciate it. cuz wen i put my tbe on i deff boosted more. and then after WOT my CEL came on. but then the next day it went away. and i got the code read and it said it was wastegate/turbo. like it wasnt used to more boost. but now its fine like the CEL isnt on anymore. but how long do you think im good until i get a AP and tune it.

That isn't boost creep. This is your car trying to figure out what the hell you did to it.

The computer (ECU) is programmed to support your restrictive exhaust. Now that you've freed it up, you are allowing more air to pass through the turbo creating more boost. This isn't good because now you are overboosting. This is where you got the wastegate CEL. Because you are overboosting their is more air is entering the motor without proper fuel enrichment. Again because your ECU is not programmed to support the better flowing motor. This is particularly bad on 07s. Due to EPA standards, the ECU has been programmed to run extremely lean at full boost. You are now running even leaner.

Bottom line: get an Accessport to reprogram your ECU to support your mods.

Personally, I wouldn't go WOT in your situation. I've read too many horror stories with 07s that were not tuned.

Icculus · 07-14-2008, 08:27 PM

Quote:

Originally Posted by BatMobile07

but how long do you think im good until i get a AP and tune it.

Yesterday. Know that's not the answer you're looking for but its true. I'm with La Mer you should definitely take it easy and stay out of high boost until you get an AP or equivalent.

Just out of curiosity what tbe did you get?

BatMobile07 · 07-16-2008, 06:03 AM

ight thanks guys. but ill try to get the EM asap. but i dont know how long it will be prob anywere from a month or 2 at the latest. so would that be alright? but i have an invidia catback with hopupracing.com's DP.

pearlwhitesti · 07-16-2008, 06:13 AM

Month or two is pushing it. Why don't you just run an open source map? Its better to be safe than sorry. As mentioned previously, stay outta the boost untill EM.

BatMobile07 · 07-16-2008, 06:19 AM

ight yea. well i think now i was just doing some calling around. i might be getting it in a few days. but. what is the open source map?

pearlwhitesti · 07-16-2008, 06:26 AM

Open source is a free map you can download from the internet directly to your STi using a special cable which I can't recall the name right now. This would be a good temporary solution, untill you can get a protune so you can see the true potential of the TBE. Its already been mentioned, but I'll say it again, your going to eventually need to get protuned anyways since your DP is catless. What ever you do, good luck. Just remember the 2007 STi is a totally different animal when modded comparred to previous models.

jakillz · 07-16-2008, 06:45 AM

Go to tactrix.com if you want the cable to download an open source map.

Also check out openecu.org

I don't believe this method is truelly recommended though...

Icculus · 07-16-2008, 07:13 AM

Quote:

Originally Posted by BatMobile07

ight thanks guys. but ill try to get the EM asap. but i dont know how long it will be prob anywere from a month or 2 at the latest. so would that be alright? but i have an invidia catback with hopupracing.com's DP.

Also I don't know why I didn't mention it earlier, but if you are trying to save a few bucks I think there are probably no less than 4 used AP's for sale in the personal classified section. You get the EM you need and help another member out in the process

(Note: I don't have an AP for sale so this isn't selfish advertising

)

BatMobile07 · 07-16-2008, 07:25 AM

o ight thanks man. but once i get the AP and tune it myself how much longer will i be ok until i have to get it protuned?

Icculus · 07-16-2008, 08:05 AM

Quote:

Originally Posted by BatMobile07

o ight thanks man. but once i get the AP and tune it myself how much longer will i be ok until i have to get it protuned?

Well I still never caught above whether or not your downpipe is catless or not. If you're dp has a cat then you could run off the off the shelf cobb map indefinitely in theory and never get it tuned.

If your dp is catless I would probably go ahead and get it protuned asap.

BatMobile07 · 07-16-2008, 08:18 AM

alright yea my DP is catless. and im going to morrow to get the AP. so it will have EM tomorrow. but what would or could it do to my car sense i have a catless DP?

jakillz · 07-16-2008, 08:38 AM

Man I wish I could just run out and get 600$ parts spur of the moment like that ^ ha.

Could always have your turbo outlet ported to reduce boost creep possibility

BatMobile07 · 07-16-2008, 02:04 PM

hey. i read on the cobb website. and it said that they highly recommend me having a high flow cat or i can get a replacement vacuum line and a larger restricter pill from cobb or the dealer.

so is it like a one or the other thing or do i need a high flow cat. cuz the vacuum line and restricter pill would be alot easier?

nhat · 07-16-2008, 02:21 PM

where in va are you located? if you're in northern va, there are 2 tuning shops that can do opensource protunes.

07-14-2008, 08:07 PM	#16
La Mer NIИja Location: US - Southern California Posts: 38,213 Join Date: Jan 2006 Trader Rating: (5)	Re: boost creep Commonly used Acronyms What is boost creep? Boost Spike vs. Boost Creep the real deal Boost Creep... What is it? This ad is not endorsed by this member. Please register or login to hide this ad.

07-16-2008, 06:03 AM	#19
BatMobile07 Amateur STI Driver Car: black 07 wrx sti Fav Mod: AP Location: VA Posts: 33 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep ight thanks guys. but ill try to get the EM asap. but i dont know how long it will be prob anywere from a month or 2 at the latest. so would that be alright? but i have an invidia catback with hopupracing.com's DP.

07-16-2008, 06:13 AM	#20
pearlwhitesti Banned Car: 07 Pearl White STi Fav Mod: LC & FFS Location: Chicago Posts: 271 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep Month or two is pushing it. Why don't you just run an open source map? Its better to be safe than sorry. As mentioned previously, stay outta the boost untill EM.

07-16-2008, 06:19 AM	#21
BatMobile07 Amateur STI Driver Car: black 07 wrx sti Fav Mod: AP Location: VA Posts: 33 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep ight yea. well i think now i was just doing some calling around. i might be getting it in a few days. but. what is the open source map?

07-16-2008, 06:26 AM	#22
pearlwhitesti Banned Car: 07 Pearl White STi Fav Mod: LC & FFS Location: Chicago Posts: 271 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep Open source is a free map you can download from the internet directly to your STi using a special cable which I can't recall the name right now. This would be a good temporary solution, untill you can get a protune so you can see the true potential of the TBE. Its already been mentioned, but I'll say it again, your going to eventually need to get protuned anyways since your DP is catless. What ever you do, good luck. Just remember the 2007 STi is a totally different animal when modded comparred to previous models.

07-16-2008, 06:45 AM	#23
jakillz Junior STI Driver Car: OBP 05 STI Fav Mod: jazzy eng. ipod adapter :) Location: Northern MA Posts: 85 Join Date: Jan 2008 Trader Rating: (0)	Re: boost creep Go to tactrix.com if you want the cable to download an open source map. Also check out openecu.org I don't believe this method is truelly recommended though... Last edited by jakillz : 07-16-2008 at 06:50 AM.

07-16-2008, 07:25 AM	#25
BatMobile07 Amateur STI Driver Car: black 07 wrx sti Fav Mod: AP Location: VA Posts: 33 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep o ight thanks man. but once i get the AP and tune it myself how much longer will i be ok until i have to get it protuned?

07-16-2008, 08:18 AM	#27
BatMobile07 Amateur STI Driver Car: black 07 wrx sti Fav Mod: AP Location: VA Posts: 33 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep alright yea my DP is catless. and im going to morrow to get the AP. so it will have EM tomorrow. but what would or could it do to my car sense i have a catless DP?

07-16-2008, 08:38 AM	#28
jakillz Junior STI Driver Car: OBP 05 STI Fav Mod: jazzy eng. ipod adapter :) Location: Northern MA Posts: 85 Join Date: Jan 2008 Trader Rating: (0)	Re: boost creep Man I wish I could just run out and get 600$ parts spur of the moment like that ^ ha. Could always have your turbo outlet ported to reduce boost creep possibility Last edited by jakillz : 07-16-2008 at 08:41 AM.

07-16-2008, 02:04 PM	#29
BatMobile07 Amateur STI Driver Car: black 07 wrx sti Fav Mod: AP Location: VA Posts: 33 Join Date: Jul 2008 Trader Rating: (0)	Re: boost creep hey. i read on the cobb website. and it said that they highly recommend me having a high flow cat or i can get a replacement vacuum line and a larger restricter pill from cobb or the dealer. so is it like a one or the other thing or do i need a high flow cat. cuz the vacuum line and restricter pill would be alot easier?

07-16-2008, 02:21 PM	#30
nhat Professional STI Driver Car: 04 sti Fav Mod: enginuity tuned Location: NoVA Posts: 417 Join Date: Aug 2007 Trader Rating: (0)	Re: boost creep where in va are you located? if you're in northern va, there are 2 tuning shops that can do opensource protunes. This ad is not endorsed by this member. Please register or login to hide this ad.