entropy
Moderator
Posts: 8671
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posted February 18, 2007 02:18 AM
 Edited By: entropy on 18 Feb 2007 02:58
hp gremlin: seems to be solved
rpm__truehp__duty cycle (was OEM inj, now RC370's)
3000___29___DC= was 15%, now 10%
4000___54___DC= was 23%, now 16%
5000___74___DC= was 23%, now 19%
6000___91___DC= was 40%, now 31%
7000__122___DC= was 50-51%, now 39%
8000__152___DC= was 61-65%, now 50-53%
9000__170___DC= was 71-73%, now60-61%
10000_175___DC= was 79-81%, now 72-73%
10500_176___DC= was 83-85%, now 75-76%
11000_175___DC= was 88-90%, now 78-80%
I used to have a dip in hp @ 10.5 & 11, then back up @11.5
went to RC370 injectors (thx to D Meyer & Lorcan for the advice) and the gremlin seems to be gone 
BIG, BIG thanks to Dave Owen:
When i started testing the 370's it was running WAY rich and changing fuel numbers in my brand new PC3-USB didn't help at all.
Dave suggested some tests which ended in simply putting my PC3R back in. Voila.
Weird: the USB worked fine with positive numbers, but didn't work with negative numbers.
Who'd a thunk it? Not me!
luckily DaveO and his cell phone were there for the noob-builder  !!!
current fuel map #'s w/3R and RC370's
RPM___100%
3000___-30
4000___-20
5000___-15
6000___-13
7000___-10
8000___-5
9000___5
10000__11
10500__12
11000__14
Now, after 5 days on the dyno, flogging the shit outa it, I'm gonna split the cases and take a peak ...
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aliveagain
Needs a life
Posts: 5033
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posted February 18, 2007 06:20 AM
I wonder if that is my problem.I have a usb and ECP said they took out a lot of fuel down low and I'm still fouling out under 3g's.
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psycho1122
Pro
Posts: 1608
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posted February 18, 2007 07:13 AM
entropy;
Refresh me on the engine you did this on.
If I may say, when I put my OE 330's in my 1270, it was a touch happier. Of course, installing the Muzzy Fuel pump made the biggest difference.
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entropy
Moderator
Posts: 8671
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posted February 18, 2007 11:08 AM
psycho,
i have a 15.4:1 1427.
In retrospect, I THINK a new set of OEM injectors could have fixed the odd behaviour at 10.5 & 11k.
I'm guessing that my 6 yr old OEM injectors just got "tired" and reconditioning did not totally "fix" them even if they flowed 333. Tired coils???
Anyway, I am happy with the fuel system
I split the cases this morning, and next on the agenda is "freshen up" the motor for the Texas Mile.
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TRNorBRN6001
Needs a job
Posts: 2021
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posted February 19, 2007 08:36 AM
Who would have thought!
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TFA 200MPH CLUB MEMBER!
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