Beyond stage 3...?
03-08-2004, 12:10 PM
#1
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Beyond stage 3...?
Without major engine work, what else can I do to improve performance in a stage 3 A4 1.8 (DBW)? I notice performance degrades significantly in warm weather. Will an aftermarket intercooler make a big difference here? I'm sure there is a difference, but throttle response is very sluggish when it's 70 degrees outside and right now that's my biggest issue.
Beyond that, is it possible to get the car up to stage 3 + race fuel performance - on 93 octane gas? Can I get there without having to rebuild the engine? If so, what must I do?
Beyond that, is it possible to get the car up to stage 3 + race fuel performance - on 93 octane gas? Can I get there without having to rebuild the engine? If so, what must I do?
03-08-2004, 01:21 PM
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A couple things...
In no particular order.
1. Exhaust if you don't already have one.
2. Test pipe can make a few HP as well.
3. An aftermarket boost controller can decrease spool-up time, and maybe bump the boost up a tad.
4. Lightweight flywheel
5. Water Injection
6. FMIC
1. Exhaust if you don't already have one.
2. Test pipe can make a few HP as well.
3. An aftermarket boost controller can decrease spool-up time, and maybe bump the boost up a tad.
4. Lightweight flywheel
5. Water Injection
6. FMIC
03-08-2004, 03:25 PM
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Efficient FMIC and water injection.
I ran the 100 program for the past five months on 93 octane gas while temps were low enough. If I wanted to go any later I'd need water injection or a bit of toluene.
03-08-2004, 08:53 PM
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Mmmm...toluene.
Got some of that at my local Sherman Williams a few years ago. Ran it at Watkins Glen for 2 days in 90* temps with the APR v3.1 program. No problems but for a little black soot on my rear bumper.
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03-09-2004, 06:50 AM
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For the cheap cost, you can't beat a MBC....
My e-bay special was $15, and it worked great once it's set.
Problem is, it's a PITA to set. make a run, do an adjustment, make a run, do an adjustment, make a run, ooops, too much, back it off, arrgh!
I'm going to an EBC, not only because it's cockpit adjustable, but also because I can wire in a switch, and have two different boost settings. I'm thinking one boost setting for normal driving, and another for when the water injection is installed again.
Problem is, it's a PITA to set. make a run, do an adjustment, make a run, do an adjustment, make a run, ooops, too much, back it off, arrgh!
I'm going to an EBC, not only because it's cockpit adjustable, but also because I can wire in a switch, and have two different boost settings. I'm thinking one boost setting for normal driving, and another for when the water injection is installed again.
03-09-2004, 07:11 AM
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In my case the MBC did not close the WG fully. Profec gave faster spool and ealier boost!
A EBC will keep that wastegate closed all the way to you reach boost. A MBC will gradually open...
And like the other say, possiblities to adjust from cockpit, and have two boost settings is sweet
A very nice mod I would say.
And like the other say, possiblities to adjust from cockpit, and have two boost settings is sweet
A very nice mod I would say.