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Another boost issue possibly?

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Old 02-01-05, 05:50 PM
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Another boost issue possibly?

After tweaking the car at Pettit the car is noticeably faster, has alot more torque, and is very responsive. But, im not quite sure the problem is completely solved. When cruising say in 3rd, at probably 2600-3000 or so I can tip-in even quite heavily and the car just seems to hardly accelerate. I can hear the turbo creating boost and watch it on the gauge but the car seems sluggish. Now, is this just me or is this normal. Seems that before I had these boost issues after replacing the motor that I did not have this problem....
Old 02-01-05, 06:13 PM
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Could this be ignition like before?
Old 02-01-05, 06:32 PM
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sounds like the 3k rpm hestitation, petitt should be able to fix it on your ecu. Is it a tuned stock ecu?
Old 02-01-05, 06:33 PM
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It is a M2 stage 3.
Old 02-01-05, 06:33 PM
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But I dont recall ever having it before...
Old 02-02-05, 11:51 AM
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ANY help?
Old 02-02-05, 01:40 PM
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How much boost are you getting? I'm wondering if you have a control system problem there.

Dale
Old 02-02-05, 02:31 PM
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My boost is great I get a soild 12 lbs on the primary, and then of course the spike me and you talked about Dale. I lowered the boost to 7 lbs last night by plugging the WG control, that way I dont hurt the motor while figuring out what to do about the spike....
Old 02-02-05, 03:14 PM
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May be a problem with the turbo precontrol - the exhaust flapper is open, giving both turbos exhaust pressure and giving more lag.

Dale
Old 02-02-05, 05:40 PM
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Any way that I can troubleshoot that flapper. I had checked the actuators with the rods before and everything seemed to open and shut properly...
Old 02-02-05, 06:10 PM
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Originally Posted by DVSseven
Any way that I can troubleshoot that flapper. I had checked the actuators with the rods before and everything seemed to open and shut properly...
http://www.autosportracetech.com/RX...bleshooting.htm

http://www.scuderiaciriani.com/rx7/boost_problems.html (mid section)

Jeremy
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