Guru MAP 1 impressions
09-09-2003, 02:11 PM
#46
Burning Brakes
Join Date: Mar 2002
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Now I am definitely thinking maybe going above 280bhp = side effects... hmm...
When I upgraded to my superchips I simply gained performance with no nasty side effects. I went from 250bhp to about 280bhp, boost arrived at 3000rpm = 1000rpm earlier and that was it. I was happy.
Now I want more power so I was thinking Gurus and Map in order to repeat the exercise but if this = idle probs and engine stumble on throttle blip and popping when on boost or off boost I guess re-think is in order...
When I upgraded to my superchips I simply gained performance with no nasty side effects. I went from 250bhp to about 280bhp, boost arrived at 3000rpm = 1000rpm earlier and that was it. I was happy.
Now I want more power so I was thinking Gurus and Map in order to repeat the exercise but if this = idle probs and engine stumble on throttle blip and popping when on boost or off boost I guess re-think is in order...
09-09-2003, 02:31 PM
#47
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Originally posted by reno928s
Jake, if you could do it over again, would you go with the Guru digital MAF? Also, are there issues with the Guru digital MAF as there are with the Guru MAP?
Jake, if you could do it over again, would you go with the Guru digital MAF? Also, are there issues with the Guru digital MAF as there are with the Guru MAP?
09-09-2003, 02:43 PM
#48
Drifting
Join Date: Jun 2001
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Originally posted by Jake951
The MAP setup is not perfect but for me it's 98% of the way there.
The MAP setup is not perfect but for me it's 98% of the way there.
Just a couple of very minor glitches that more than likely are problems in the car somewhere that the MAP kit just happens to highlight.
I'm still not convinced that the MAP kit is 100% the culprit, if so every MAP kit would have the same issues.
Besides I'll take to good over the bad with this any day!
OT: On the way home from an autocross Sunday I completely RAN away from a new Cadillac STS that thought he could keep up. He might as well have put it in park. If you look up it's stats they are pretty close to what our cars are stock. So judging from the dyno, my own butt dyno, and the performance I've experienced so far on the street (Z06, 300zxTT, 3000gt, ect....) I'm still happy and would do it all over again.
09-09-2003, 03:40 PM
#51
Burning Brakes
I used to own a couple of late 80's turbo cosworth powered ford escorts and sierra's in the uk (small motors / big boost). They were the first cars I had with full MAP systems. I think they were Marrelli control units using ford programming. No drivability issues. MAP systems should not be inherently untunable for drivability, I think many drivablity issues that are common for 951 MAP users are because the MAP systems are uncovering comment underlaying problems as mentioned above. I can't wait to try mine.....
09-09-2003, 04:45 PM
#53
Instructor
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I'm happy with my MAP II the way it came, I have no plans for further tuning or a trip to the dyno. After a few weeks of use the off idle thing is not even an issue. With the MAP II & K27/6 upgrade this thing rocks. I'm done under the hood, now I need some 27 mm torsion bars to go with the Koni's and 250s I have waiting to go on the front. From my experience the MAP "issues" are being blown way out of proportion. A most excellent upgrade!
09-09-2003, 06:11 PM
#54
Former Vendor
IMO,
that stumbling problem is not (completely) related to MAP-kit,but might be in the chip.I do not have yet either that kit or boost gauge t-ed to KLR-line,but I do have that off-throttle stumbling.
It happens mainly with cold engine and low rpm (below 2000) and gear (1-3).I dont notice it at speeds exessive of 25 mph.
I initially thought that is related to TPS gone bad,new TPS with proper setting & throttle cable tension adjusting helped but didn't remove it completely.
There might be an issue of the throttle closing in a rate too fast for DME computer to react with cold engine & low rpm,so would there be any idea of building a damper to throttle linkage?
that stumbling problem is not (completely) related to MAP-kit,but might be in the chip.I do not have yet either that kit or boost gauge t-ed to KLR-line,but I do have that off-throttle stumbling.
It happens mainly with cold engine and low rpm (below 2000) and gear (1-3).I dont notice it at speeds exessive of 25 mph.
I initially thought that is related to TPS gone bad,new TPS with proper setting & throttle cable tension adjusting helped but didn't remove it completely.
There might be an issue of the throttle closing in a rate too fast for DME computer to react with cold engine & low rpm,so would there be any idea of building a damper to throttle linkage?
09-10-2003, 02:51 AM
#59
There might be an issue of the throttle closing in a rate too fast for DME computer to react with cold engine & low rpm,so would there be any idea of building a damper to throttle linkage?
I suppose this problem is not because of MAP.
MAP just brings all of the symptoms up more clearly.
09-10-2003, 11:04 AM
#60
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Originally posted by pete95zhn
IMO,
that stumbling problem is not (completely) related to MAP-kit,but might be in the chip.I do not have yet either that kit or boost gauge t-ed to KLR-line,but I do have that off-throttle stumbling.
It happens mainly with cold engine and low rpm (below 2000) and gear (1-3).I dont notice it at speeds exessive of 25 mph.
I initially thought that is related to TPS gone bad,new TPS with proper setting & throttle cable tension adjusting helped but didn't remove it completely.
There might be an issue of the throttle closing in a rate too fast for DME computer to react with cold engine & low rpm,so would there be any idea of building a damper to throttle linkage?
IMO,
that stumbling problem is not (completely) related to MAP-kit,but might be in the chip.I do not have yet either that kit or boost gauge t-ed to KLR-line,but I do have that off-throttle stumbling.
It happens mainly with cold engine and low rpm (below 2000) and gear (1-3).I dont notice it at speeds exessive of 25 mph.
I initially thought that is related to TPS gone bad,new TPS with proper setting & throttle cable tension adjusting helped but didn't remove it completely.
There might be an issue of the throttle closing in a rate too fast for DME computer to react with cold engine & low rpm,so would there be any idea of building a damper to throttle linkage?