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Old 10-21-03, 04:59 PM
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What to adjust...

Ok, i know i know, i'm a PITA. Well, i took the car for a drive after completing the BAC remove EGR remove and FULL TB mod. She runs great, i noticed a little more power in 2nd 3rd gear above 5500 rpms.

Only real question is, when i'm downshifting and i'm letting the revs fall from about 4k in any gear a get a synconized popping noise from the exhaust... very light little pops and what ever that is...it's also hindering my engine brake performance. Is there something i can adjust to get better engine brake? TPS?

-markus

CHEERS, and THANKS!
Old 10-21-03, 05:49 PM
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bump? could it be the TPS causing the LACK of engine brake?

-Markus
Old 10-21-03, 05:54 PM
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Is it backfiring? And why would you want to engine break. Its a lot easier to replace break pads than a clutch/flywheel (and whatever else engine breaking puts stress on).

Tim
Old 10-21-03, 05:58 PM
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I don't think theres anything wrong with engine braking. Don't you down shift when you stop? or do you just stick it in neutral and brake?

Maybe it's the dashpot that you have to adjust.
Old 10-21-03, 05:59 PM
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a) because it is "proper" to gear down.
b) because done properly it is not any extra stress on anything
c) why not?

If you engine is backfiring like that there is a possibility of an exaust leak even if it is very small that could be the cause of your poping sound!
Old 10-21-03, 06:41 PM
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they are small pop pop pop sounds.. i can BARELY hear them. But as the engine / exhaust is popping i can feel it hindering engine braking performance... Could i readjust the TPS to get a better engine brake?

-Markus

"I always downshift.. and like Jreynish said if done correctly it doesnt wear anything more than normal (heel/toe baby yeah!") CHEERS!
Old 10-21-03, 08:02 PM
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bump?

-Markus

"think i'm funny? Funny how, like a clown? do i amuse you.. how the **** am i funny" CHEERs!
Old 10-22-03, 01:13 AM
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I don't think theres anything wrong with engine braking. Don't you down shift when you stop? or do you just stick it in neutral and brake?
When I am comming to a stop sign or a red light, yes, I put it in neutral and just use the brake.

"I always downshift.. and like Jreynish said if done correctly it doesnt wear anything more than normal (heel/toe baby yeah!") CHEERS!
What do you mean, if done correctly. Are you talking about rev-matching. B/c I always rev-match when I down shift. But I dont when I am comming to a stop, I do it when I need to speed up.

I can see how it would not be any extra wear if you rev-match when you down shift but I don't see why you would use that instead of the break.

Tim
Old 10-22-03, 01:14 AM
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using only the brake wears down the brake pads faster.
A LOT faster.
Old 10-22-03, 02:26 AM
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Originally posted by Ronac
using only the brake wears down the brake pads faster.
A LOT faster.
So what, break pads are cheap and easy to change. And what do you think automatic cars do?

Tim
Old 10-22-03, 02:33 AM
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automatic cars engine brake all the time, unless u put them in neutral
Old 10-22-03, 06:51 AM
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I double pedal downshift all the time, just for the fun of it.

The rotary engine will never have the braking drag of a piston engine - be glad.

I saw the above post about the idle dash pot.
It keeps the throttle from completely closing for a second.
Maybe adjust it back some.
Old 10-22-03, 11:41 AM
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It is always a good idea to use engine braking when coming to a stop.

Reason:
If someone is coming up behind you, and cannot stop, you need to be able to get out of his way. In situations where a half second can mean the difference between a accident or not (and an injury or not), you want to be able to put the gas down, not have to shift first.

In BC, if you coast to a stop in neautral on your driver's test, you fail, just as if you don't sit at a stop with the clutch pedal engaged and the car in first gear. You have to always be able to accelerate (and watching that rearview mirror) to be truly safe.
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