Always had a bit of trouble starting my car. But since installing new rear muffler have only been able to star once. Tried all the usual. Pull the plugs and deflood, replace plugs with new ones. Not having a lot of luck. Car hasn't seen a lot of time on the road, so replaced oil and petrol as a precaution.



FD , rebuilt engine, all new parts, less than 200km on the engine, full bridge including the centreplate, single turbo, 3" exhaust into a 2.5" adrenaline R muffler on the end, microtech Lt10 with the microtech ignition box. All standard injectors 550 pri by 850 sec??

Had it tuned after rebuild by RX7 heaven in Auckland. Tony started it no worries when I went to pick it up. I flooded it when I next tried to start it and it has always been hard to start since. Have tinkered with the crank map without much luck (temps are around 18C in NZ at the mo.), but it had an injector output of 12 when I started anyway.

Have Ls1 wideband.

Have removed intank pump, installed external 500Hp, upsized line to 9An I think to FPR set at 40psi. WG spring is 12psi.




Idle Map
Screen 1

30" ~ 0.38
25" ~ 1.00
20" ~ 1.67
15" ~ 2.00
10" ~ 1.95
05" ~ 1.95
00" ~ 2.71
2psi ~ 3.86
4psi ~ 3.86
6psi ~ 3.81
8psi ~ 3.81
10 on is ~ 0.00


Load Map
Screen 3

30" ~ 0.67
25" ~ 1.24
20" ~ 1.90
15" ~ 2.24
10" ~ 3.29
05" ~ 3.81
00" ~ 4.33
2psi ~ 5.76
4psi ~ 6.67
6psi ~ 7.14
8psi ~ 8.00
10psi ~ 8.29
14psi ~ 8.67
16psi ~ 8.90
18psi ~ 9.43
20psi ~ 10.67

RPMwot Map Screen 17

All are zero

RPMcrs Screen 18

All are zero

Pump Map
Screen 19

#1 ~ +10%
#2 ~ +02
#3 ~ +14
#4 ~ 00Hg
#5 ~ 2000
#6 ~ +30
#7 ~ +10
#8 ~ +16
#9 ~ 00
#10 ~ +05
#11 ~ +05
#12 ~ 4.00
#13 ~ no
#14 ~ no
#15 ~ +00
#16 ~ +00

Water Map
Screen 20

-25 ~ 0
-17 ~ 73
-9 ~ 58
-01 ~ 55
05 ~ 52
11 ~ 44
18 ~ 30
24 ~ 20
31 ~ 14
38 ~ 12
46 ~ 10
60 ~ 07
68 ~ 04
82 ~ 02
99 ~ 0
124 ~ 0

Air_t Map
Screen 21

All are zero

Crank Map
Screen 22

-25 ~ 66
-17 ~ 68
-9 ~ 63
-1 ~ 57
5 ~ 49
11 ~ 40
18 ~ 31
24 ~ 24
31 ~ 19
38 ~ 15
46 ~ 12
60 ~ 08
68 ~ 05
82 ~ 0
99 ~ 0
124 ~ 0

t*rpm
Screen 23

Idle ~ 15
1000 ~ 15
1500 ~ 15
2000 onwards are ~ 20


t*map Map
Screen 24

Idle ~ 05
25 ~ 05
20 ~ 05
15 ~ 03
10 ~ 03
05 ~ 03
00 ~ 00
2psi ~ -02
4psi ~ -04
6psi ~ -05
8psi ~ -05
10psi ~ -06
14psi ~ -06
16psi ~ -07
18 psi ~ -07
20 psi ~ -07

t*air Screen 25
Correction value Is expressed as number of degrees you wish to advance or Retard to the Ignition curve and values Is set at zero.

t*gap
Screen 26

0500 ~ 15
1000 ~ 15
1500 ~ 13
2000 ~ 13
2500 ~ 12
3000 ~ 10
3500 ~ 10
4000 ~ 10
4500 ~ 10
5000 ~ 10
5500 ~ 10
6000 ~ 10
6500 ~ 10
7000 ~ 10
8000 ~ 10

t*Inj Map
Screen 27

0500 ~ 120
1000 ~ 120
1500 ~ 120
2000 ~ 180
2500 ~ 180
3000 ~ 180
3500 ~ 180
4000 ~ 180
4500 ~ 210
5000 ~ 210
5500 ~ 210
6000 ~ 210
6500 ~ 210
7000 ~ 210
8000 ~ 210
9000 ~ 210

t*wat Map Screen 28


All are zero

Option Map
Screen 30

#1 ~ +00%
#2 ~ +13
#3 ~ +00
#4 ~ +00
#5 ~ +20
#6 ~ off
#7 ~ off
#8 ~ +00
#9 ~ off
#10 ~ off
#11 ~ off
#12 ~ 3000
#13 ~ 04Hg
#14 ~ +65
#15 ~ 17Hg
#16 ~ 3.32



Any help would be appreciated.

Cheers .Jay.

 

Map for comparison, mtx8, s5 engine fc t2, 4 x 750cc injectors, knightsport highflow:
http://web.aanet.com.au/~arran/car/p...ap_new_inj.jpg

Other build info:
http://web.aanet.com.au/~arran/car

 

50+ views and 1 reply. Cheers arran. Have looked up a heap of maps, but havn't found any referring to a bridgeport on stock injectors. Going to max out my injector outputs today and have a dig around in there. Will post how I go.

 

Proved spark, looks good will jump 10mm no worries. I see someone else soaked their injectors in degreaser, so tried that for two hours flushed them and then tested them incar. Both spray the required mls & spray pattern sweet but one doesn't shut down when powered down..comes out like a **** for about five seconds then drips..
Probably explains why I have been able to fire up one rotor. Wish I had checked the injectors before I soaked them. Will post a couple of photos for laughs. Ordered a couple off trademe for $70.

 

Injector failures are very, very common. Practically every car I run into has a bad injector.

Generally you can have them cleaned at a local injection shop for a few bucks. I just had the 3 injectors in my Insight done for $30.

Bridgeports need a LOT of fuel at zero vacuum conditions to get going, so you may find you need 2x to 3x the amount of fuel you think you do to start the engine.

 

Starts pretty easy on about 9.5ms now.

 

Not sure if that uploaded or not. For those with microtech, change the file extension back to .mtl format and have alook. For some reasondespite having RPMmap set to 3000 and the other set to 00psi my outputs are in sT from the get go. Any ideas, honestly I'm thinking of defecting to a haltech pro sport 1000 2.5K.

 

I can't see that log on most of my machines because I don't have the Microtech software installed. What is the issue?

 

Looking at the text log it shows sT behing all of the injector output No.s & the map on RHS is RPMwot. Idling roughly obviously. The injector outputs range from 7 to 10 and because the wrong map is in use adjusting the idle map does nothing. I checked my staging is at 3000 rpm and 0psi I think. Have to check my computer when I'm home but the RPMcrs and RPMwot maps are set to off. Sorry I'm going by memory. Will post again when I get home with better atattchments.

 

Just home now. This .doc file should have all info you could need.

 

Your water can't be 13/14 degrees with a running engine.

ST means that staged injection is on, and only the primaries are operating.

Those injector times are nuts, probably because the car is in warmup and it isn't tuned.

Also, get off of normal mode and go into Matrix mode. Normal mode is a carburetor.

 

The text shows the water at 44-48, it didn't cut and paste all that clear.
With the St, you are saying that it will turn to ms when the criteria are met and my secondaries come on.?
I did have a reasonable idle at around 3ms origonally, I thought that I must have altered one of the settings when I last looked through them. Doesn't matter what I set the idle screen to because it is using the rpmwot map not the idle map.
I will have a crack at matrix mode and see how it turns out. Will this change my running on rpmwot at all?

 

Yes, it will indicate MS when all injectors are operating and ST when only the primaries are operating. I believe this is mentioned in the manual because it is weird.

The ECU probably thinks you are at WOT becuse of the bridgeport pulsing. Switch to Matrix mode. Once you go Matrix mode, you will have a 3D table like all other ECUs and all the crap of RPMWOT, RPMCruise, etc. is ignored.

 

Ha, I see that now. "sT
=staged injection active (primary currently on)"
I had only remembered page 23 "The MicroTech Handset indicates when the secondary injector bank is active by displaying the letters "sT"
instead of "mS" in the OUTPUT display."
Kinda contradictory, but you've got one of these so I will take your word for it. Awesome about that matrix mapping. Been at work so haven't had a chance to try it yet.

Cheers Aaron.

 

Oh, also swap your acel enrichment from MAP to TPS.

 

could you explain what screen & how to perform this change

 

Am i the only one who thinks that their is something wrong with the vaccum signal source on this car. should be pulling at least 10 inches vaccum plus.

 

^^^^ what?? lol

 

Screen 19. Turn Pump1Stop and Pump2Stop to "Off". You will then be in TPS mode.

OK...

Full bridgeport...Even my small half bridge will only pull about 5" at 1000 RPM.

 

Oh right didnt see that.

 

small bridge only 5'' at 1000 rpm?? wow no comments but that might be on your bridge

 

When your intake port is in constant overlap and always open to the exhaust port, at low RPM there isn't much opportunity to draw vacuum. But then set the idle to 1500RPM (where I have it set) and it then draws about 13".

 

1500-1600 15''-16'' 1000 around 8''-10 '' .....maybe not enough sealing check it out

 

All work and no play the last few weeks. I get four days off from tomorrow. I have a PS 1000 on the way, but will still see how far along I can get with the LT with the information that I have now.

 

Uhhhhh, had another go with the microtech with little success. Flagged it and hacked in the microtech. So far so good, no spark though. I had the x4 box in there, didn't realise but makes sense that the factory ignitor has been bypassed. Dose anyone know if the x4 is compatible with a haltech.