Engine shuts dwn at 5,000 rpm.??help?

STight · 05-09-2008, 08:20 AM

Well,
My 2004 STi is lightly modded, original owner, 123,300 miles. In short, my car ran great after Chris/RFI Logics did a protune about 6 months ago. 260whp on the Mustang Dyno thru a 4 inch dp into the stock catback. Mods are Cobb main pulley, APS CAI, APS twin BOV, Access Port, ACT lighter FW, beefier Exedy clutch. Gimmick Turbo inlet hose.

I had the dealer install a more effiecient silicone turbo inlet hose, clutch and lighter flywheel. Car runs strong up to 5,000 rpm and then cuts out. I feel like it may be the new turbo inlet hose thats the issue. Chris/RFI has not responded to any of my requests for help thru emails from here and my hotmail account. The subaru dealer said contact the tuner. Guess he is too bzy or whatever..

My computer died at home so I may be slow responding etc..

Ideas please.. Or Anyone know a phone number for Chris?
Thanks,
Todd

wsirianni · 05-09-2008, 08:32 AM

is it like a fuel cut

BBBsti LTD · 05-09-2008, 08:35 AM

Chect the installation that the dealer did, also in what gear does this happens.

Sounds like a fuel cut. Are you over boosting??

FlyinbySTi · 05-09-2008, 09:03 AM

how much boost are you running?

Hitman83 · 05-09-2008, 09:09 AM

It's not fuel cut, I 100% guarantee it's the turbo inlet collapsing. You can verify this but running live data on the AP and watch the MAf g/s reading. If I'm right, it will drop a lot once you go over 5k

STight · 05-09-2008, 02:25 PM

Quote:

Originally Posted by wsirianni

is it like a fuel cut

yes, all you hear is the bovs let loose.

STight · 05-09-2008, 02:26 PM

Quote:

Originally Posted by BBBsti LTD

Chect the installation that the dealer did, also in what gear does this happens.

Sounds like a fuel cut. Are you over boosting??

Thats what I thought but it doesnt throw a CEL

STight · 05-09-2008, 02:29 PM

Quote:

Originally Posted by Hitman83

It's not fuel cut, I 100% guarantee it's the turbo inlet collapsing. You can verify this but running live data on the AP and watch the MAf g/s reading. If I'm right, it will drop a lot once you go over 5k

Geez. I bet thats it. I just have the basic AP so not sure if I can read the MAF g/s.

***Crewchief*** · 05-09-2008, 02:34 PM

Sounds like it could be the turbo inlet collapsing. What brand intlet are you running?

SoflaSTI · 05-09-2008, 04:39 PM

yea might be that buttt theres no way its gimmick, or perrin (OK im sure theres a few cases...) those are both really good inlets. Atleast i have the gimmick one and it works wonders.
my 2 bits.

edit: also, i would think that that hp you made wouldnt cause that... from what i read, i think you would need much higher hp for that to be an issue but once again we dont know what brand you bought, could be ebay for all we know.

jermdeez · 05-09-2008, 07:30 PM

sure its not ffs

Hitman83 · 05-09-2008, 07:33 PM

my gimmick collapsed and did the same thing. I fixed it by putting a hose clamp around the middle part of the inlet. It's on the part you can see between the y part on the red intake manifold.

Here's a pic

STight · 05-12-2008, 08:40 AM

Quote:

Originally Posted by Crewchief

Sounds like it could be the turbo inlet collapsing. What brand intlet are you running?

Gimmick

SoflaSTI · 05-12-2008, 03:37 PM

well im saying on my part because i have a gimmick inlet mine hasnt collapsed and i would know if it did. This person above me says his did to (hitman83) so maybe thats it. These inlets are like 8plys i think and compared to perrins unit they are tougher. Theres a few bigger turbo stis that are running big hp with the 3inch version with no problems. Doesnt make to much sense to me.

BillFromTR · 05-12-2008, 03:48 PM

I'm not having any issues with my 2.4" Gimmick inlet.

05-09-2008, 08:20 AM	#1
STight Junior STI Driver Car: 2004 STi Posts: 182 Join Date: Dec 2003 Trader Rating: (0)	Engine shuts dwn at 5,000 rpm.??help? Well, My 2004 STi is lightly modded, original owner, 123,300 miles. In short, my car ran great after Chris/RFI Logics did a protune about 6 months ago. 260whp on the Mustang Dyno thru a 4 inch dp into the stock catback. Mods are Cobb main pulley, APS CAI, APS twin BOV, Access Port, ACT lighter FW, beefier Exedy clutch. Gimmick Turbo inlet hose. I had the dealer install a more effiecient silicone turbo inlet hose, clutch and lighter flywheel. Car runs strong up to 5,000 rpm and then cuts out. I feel like it may be the new turbo inlet hose thats the issue. Chris/RFI has not responded to any of my requests for help thru emails from here and my hotmail account. The subaru dealer said contact the tuner. Guess he is too bzy or whatever.. My computer died at home so I may be slow responding etc.. Ideas please.. Or Anyone know a phone number for Chris? Thanks, Todd This ad is not endorsed by this member. Please register or login to hide this ad.

05-09-2008, 08:32 AM	#2
wsirianni STI Driver Car: 05 WRX STI OBP Fav Mod: learning how to heel toe Location: Philly Posts: 241 Join Date: Aug 2007 Trader Rating: (1)	Re: Engine shuts dwn at 5,000 rpm.??help? is it like a fuel cut

05-09-2008, 08:35 AM	#3
BBBsti LTD Professional STI Driver Car: 2007 STi LTD Fav Mod: Stg. 2 with Knocklite Location: Boricua en So Cal Posts: 403 Join Date: Apr 2006 Trader Rating: (0)	Re: Engine shuts dwn at 5,000 rpm.??help? Chect the installation that the dealer did, also in what gear does this happens. Sounds like a fuel cut. Are you over boosting??

05-09-2008, 09:03 AM	#4
FlyinbySTi Silver Member Car: 05' STi Fav Mod: JDM Fogs Posts: 2,326 Join Date: Dec 2005 Trader Rating: (6)	Re: Engine shuts dwn at 5,000 rpm.??help? how much boost are you running?

05-09-2008, 09:09 AM	#5
Hitman83 Spec C Club Car: 06 STI, 08 GSXR 750 Fav Mod: WC Lathe Werks Shift Knob Posts: 1,224 Join Date: Jun 2007 Trader Rating: (1)	Re: Engine shuts dwn at 5,000 rpm.??help? It's not fuel cut, I 100% guarantee it's the turbo inlet collapsing. You can verify this but running live data on the AP and watch the MAf g/s reading. If I'm right, it will drop a lot once you go over 5k

05-09-2008, 02:34 PM	#9
*Crewchief* Authorized Member-Vendor Fav Mod: Being IWSTI's Pawn Shop, lol Location: Charleston, SC Posts: 3,939 Join Date: Sep 2004 Trader Rating: (52)	Re: Engine shuts dwn at 5,000 rpm.??help? Sounds like it could be the turbo inlet collapsing. What brand intlet are you running?

05-09-2008, 04:39 PM	#10
SoflaSTI Senior STI Driver Car: 06 subie wrx sti Fav Mod: tbe Location: Nap town, Fl Posts: 324 Join Date: Oct 2006 Trader Rating: (2)	Re: Engine shuts dwn at 5,000 rpm.??help? yea might be that buttt theres no way its gimmick, or perrin (OK im sure theres a few cases...) those are both really good inlets. Atleast i have the gimmick one and it works wonders. my 2 bits. edit: also, i would think that that hp you made wouldnt cause that... from what i read, i think you would need much higher hp for that to be an issue but once again we dont know what brand you bought, could be ebay for all we know.

05-09-2008, 07:30 PM	#11
jermdeez Spec C Club Posts: 1,605 Join Date: Feb 2005 Trader Rating: (1)	Re: Engine shuts dwn at 5,000 rpm.??help? sure its not ffs

05-09-2008, 07:33 PM	#12
Hitman83 Spec C Club Car: 06 STI, 08 GSXR 750 Fav Mod: WC Lathe Werks Shift Knob Posts: 1,224 Join Date: Jun 2007 Trader Rating: (1)	Re: Engine shuts dwn at 5,000 rpm.??help? my gimmick collapsed and did the same thing. I fixed it by putting a hose clamp around the middle part of the inlet. It's on the part you can see between the y part on the red intake manifold. Here's a pic Last edited by Hitman83 : 05-09-2008 at 07:47 PM.

05-12-2008, 03:37 PM	#14
SoflaSTI Senior STI Driver Car: 06 subie wrx sti Fav Mod: tbe Location: Nap town, Fl Posts: 324 Join Date: Oct 2006 Trader Rating: (2)	Re: Engine shuts dwn at 5,000 rpm.??help? well im saying on my part because i have a gimmick inlet mine hasnt collapsed and i would know if it did. This person above me says his did to (hitman83) so maybe thats it. These inlets are like 8plys i think and compared to perrins unit they are tougher. Theres a few bigger turbo stis that are running big hp with the 3inch version with no problems. Doesnt make to much sense to me.

05-12-2008, 03:48 PM	#15
BillFromTR Spec C Club Car: Wingless '05 Fav Mod: BOV and MBC Location: Armpit of America Posts: 2,184 Join Date: Mar 2005 Trader Rating: (4)	Re: Engine shuts dwn at 5,000 rpm.??help? I'm not having any issues with my 2.4" Gimmick inlet. This ad is not endorsed by this member. Please register or login to hide this ad.