Running strange in high gear?

batmanfc · 11-21-2009, 05:00 PM

At low rpms like 2200 or 2300 rpms in 4th and 5th gear if I try to give my car gas it seems to shake and not have any power. The turbo makes a fluttering noise and the boost gauge also flutters. Not exactly sure what it could be. At higher rpms in those gears it has plenty of power and all other gears runs fine and has plenty of power. There is an exhaust leak in between the turbo and the rotor housings that I haven't been able to fix yet. That's the only thing I can think of. Any ideas?

Max777 · 11-24-2009, 01:20 AM

umm, I cant comment about fixing it, but my car smokes in the engine to exhaust manifold area at random times, and I have a smiiliar problem with bogging in low rpm in high gears, but I think that a vac leak seems is the reason for my hesitation.

Is your car modified? Do you have the emissions intact, any mods, any strange things you notice like leaks, smoke, noises, etc?

***TitaniumTT*** · 11-24-2009, 04:17 AM

what ECU?

batmanfc · 11-24-2009, 08:30 AM

It has an exhaust and an intake with a stock ecu. Nothing other than that. It does have an exhaust leak in between the turbo manifold and the block.

***TitaniumTT*** · 11-24-2009, 09:44 AM

That's your problem, or the place to start. You do know how turbo's generate power right?

batmanfc · 11-24-2009, 10:13 AM

Haha yea I do I figured that was the problem but I wasn't sure if something else my be causing it. I know the thermowax system isn't hooked up and I'm going to fix it but I didn't know if that may affect it also

***TitaniumTT*** · 11-24-2009, 10:44 AM

Dude, you can't properly diagnose a piss-poor running car until you know that everything is working properly. You're chasing your tail when the biscuit is laying on the floor in front of you.

My exhaust gasket is blown out, why can't my turbo spool. The car chokes itself and the secondaries aren't working right. You've diagnosed the problems, now fix them. If it's still having the same issues, than it's time to look elsewhere. But why look elsewhere when two causes for the problems you're having are known and staring you in the face?

Fix the exhaust leak, rip out the thermowax system and the secondary butterflies. These are two things that are wrong. Wrong things make cars not run right. Fix the wrong things, if it's still wrong, then start looking for other things that aren't right.

batmanfc · 11-24-2009, 10:58 AM

Ok thanks Ill fix that. Would the leak also cause poor cranking and how would I go about taking the thermowax system and secondary butterflies out?

***TitaniumTT*** · 11-24-2009, 11:46 AM

No, I'm not going to give you the step by step on that. It's been covered a million times here and on the other 3 forums. It's been talked about, written up, denouced, beaten to death, praised, flow tested, pissed on, held high, raved about, ignored, sold, bought and bitched about. Search for TB mod and set up a new folder for pictures

batmanfc · 11-24-2009, 12:11 PM

Ok. I wasn't really wanting a step by step just trying to get a rough idea. Would removing the system cause poor cold start?

Max777 · 11-24-2009, 06:49 PM

/\ You might have to hold the gas pedal for a sec or two, but my own thermowax system is so screwed up that I gotta do that anyway, so it's not much of a problem when you get used to it.

Plus it helps you to learn that you should warm up your rotary before you drive off.

11-21-2009, 05:00 PM	#1
batmanfc Rotarys Ruin Lives Join Date: Aug 2009 Location: Wise, VA iTrader: (0) Posts: 66 Rep Power: 16	Running strange in high gear? At low rpms like 2200 or 2300 rpms in 4th and 5th gear if I try to give my car gas it seems to shake and not have any power. The turbo makes a fluttering noise and the boost gauge also flutters. Not exactly sure what it could be. At higher rpms in those gears it has plenty of power and all other gears runs fine and has plenty of power. There is an exhaust leak in between the turbo and the rotor housings that I haven't been able to fix yet. That's the only thing I can think of. Any ideas? __________________ '88 Turbo II '89 GXL '07 Cobalt: DD

11-24-2009, 01:20 AM	#2
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	umm, I cant comment about fixing it, but my car smokes in the engine to exhaust manifold area at random times, and I have a smiiliar problem with bogging in low rpm in high gears, but I think that a vac leak seems is the reason for my hesitation. Is your car modified? Do you have the emissions intact, any mods, any strange things you notice like leaks, smoke, noises, etc? __________________ Rotaries:They are NOT that complicated!

11-24-2009, 04:17 AM	#3
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	what ECU? __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

11-24-2009, 08:30 AM	#4
batmanfc Rotarys Ruin Lives Join Date: Aug 2009 Location: Wise, VA iTrader: (0) Posts: 66 Rep Power: 16	It has an exhaust and an intake with a stock ecu. Nothing other than that. It does have an exhaust leak in between the turbo manifold and the block. __________________ '88 Turbo II '89 GXL '07 Cobalt: DD

11-24-2009, 09:44 AM	#5
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	That's your problem, or the place to start. You do know how turbo's generate power right? __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

11-24-2009, 10:13 AM	#6
batmanfc Rotarys Ruin Lives Join Date: Aug 2009 Location: Wise, VA iTrader: (0) Posts: 66 Rep Power: 16	Haha yea I do I figured that was the problem but I wasn't sure if something else my be causing it. I know the thermowax system isn't hooked up and I'm going to fix it but I didn't know if that may affect it also __________________ '88 Turbo II '89 GXL '07 Cobalt: DD

11-24-2009, 10:44 AM	#7
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Dude, you can't properly diagnose a piss-poor running car until you know that everything is working properly. You're chasing your tail when the biscuit is laying on the floor in front of you. My exhaust gasket is blown out, why can't my turbo spool. The car chokes itself and the secondaries aren't working right. You've diagnosed the problems, now fix them. If it's still having the same issues, than it's time to look elsewhere. But why look elsewhere when two causes for the problems you're having are known and staring you in the face? Fix the exhaust leak, rip out the thermowax system and the secondary butterflies. These are two things that are wrong. Wrong things make cars not run right. Fix the wrong things, if it's still wrong, then start looking for other things that aren't right. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

11-24-2009, 10:58 AM	#8
batmanfc Rotarys Ruin Lives Join Date: Aug 2009 Location: Wise, VA iTrader: (0) Posts: 66 Rep Power: 16	Ok thanks Ill fix that. Would the leak also cause poor cranking and how would I go about taking the thermowax system and secondary butterflies out? __________________ '88 Turbo II '89 GXL '07 Cobalt: DD

11-24-2009, 11:46 AM	#9
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	No, I'm not going to give you the step by step on that. It's been covered a million times here and on the other 3 forums. It's been talked about, written up, denouced, beaten to death, praised, flow tested, pissed on, held high, raved about, ignored, sold, bought and bitched about. Search for TB mod and set up a new folder for pictures __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

11-24-2009, 12:11 PM	#10
batmanfc Rotarys Ruin Lives Join Date: Aug 2009 Location: Wise, VA iTrader: (0) Posts: 66 Rep Power: 16	Ok. I wasn't really wanting a step by step just trying to get a rough idea. Would removing the system cause poor cold start? __________________ '88 Turbo II '89 GXL '07 Cobalt: DD

11-24-2009, 06:49 PM	#11
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	/\ You might have to hold the gas pedal for a sec or two, but my own thermowax system is so screwed up that I gotta do that anyway, so it's not much of a problem when you get used to it. Plus it helps you to learn that you should warm up your rotary before you drive off. __________________ Rotaries:They are NOT that complicated!