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  #766  
Old 11-07-2017, 08:56 AM
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tel240z tel240z is offline
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This is them

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73 240z blue
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72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
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  #767  
Old 11-07-2017, 09:04 AM
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johnymd johnymd is offline
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Do you know what the standard M3 injector size is. My logic being that at 1bar you will be using twice as much air as the standard engine when N/A. Therefore you will need twice the amount of fuel to retain the same AFR and have the same safety margin as the factory injectors. I'm guess the factory would be around 300cc so if it was me, I'd go for 600's.
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'73 240z 1JZ-GTE. Was pretty quick. 11.10@132.5mph
'72 240z RHD (4BOA) Painted and waiting assembly.
'72 240z LHD Silver "Rat look" daily runaround.
'76 280z ExLHD Red v8 Lexus powered restomod.
'74 260z LHD Restomod just started.
'71 240z LHD zg arched. Still in California.

Go to: www.240z.me.uk to checkout the cars.
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  #768  
Old 11-07-2017, 10:23 AM
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tel240z tel240z is offline
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It would seem John that the stock injectors are 247or 257 so on the basis of doubling the amount of fuel i need at least 500 cc ones so mine at 440 cc confirms what my R/road man said, so your recomendation of 600 John looks bang on just need to see whats out there

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2014 navara 3.0 V6 240 BHP
72 left hooker auto project lime
73 240z blue
70 M3 supercharged 240z orange temporarily quick
72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
2001 lpg transit
97 transit cherry picker
2001 ldv site vehicle
Vw caddy
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  #769  
Old 11-07-2017, 11:12 AM
Moriarty Moriarty is offline
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You need to balance injector size with the duty cycle

No point in having small injectors running at 90%......or conversely large injectors running at 10%

Aim for 70 - 80% max duty cycle to give some head room
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  #770  
Old 11-07-2017, 08:14 PM
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tel240z tel240z is offline
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Spoke with my tuning man today and he highly recomends injector dynamics as the prefered manufacturer, when we discussed size and i suggested 600cc he suggested 760cc so i done some research and we both agreed on these at 725cc they have great reviews everywear

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2014 navara 3.0 V6 240 BHP
72 left hooker auto project lime
73 240z blue
70 M3 supercharged 240z orange temporarily quick
72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
2001 lpg transit
97 transit cherry picker
2001 ldv site vehicle
Vw caddy
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  #771  
Old 13-07-2017, 06:33 PM
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tel240z tel240z is offline
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That was quick.... so bigger is not best then

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2014 navara 3.0 V6 240 BHP
72 left hooker auto project lime
73 240z blue
70 M3 supercharged 240z orange temporarily quick
72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
2001 lpg transit
97 transit cherry picker
2001 ldv site vehicle
Vw caddy
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  #772  
Old 13-07-2017, 06:58 PM
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johnymd johnymd is offline
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Are the plugs the same Terry? They look a little different.
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Drives:

'73 240z 1JZ-GTE. Was pretty quick. 11.10@132.5mph
'72 240z RHD (4BOA) Painted and waiting assembly.
'72 240z LHD Silver "Rat look" daily runaround.
'76 280z ExLHD Red v8 Lexus powered restomod.
'74 260z LHD Restomod just started.
'71 240z LHD zg arched. Still in California.

Go to: www.240z.me.uk to checkout the cars.
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  #773  
Old 13-07-2017, 09:23 PM
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tel240z tel240z is offline
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Yes John glad to see your paying attention, and the nice man from Bosch supplied nice new plugs and pins to re wire onto my harness
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Drives
2014 navara 3.0 V6 240 BHP
72 left hooker auto project lime
73 240z blue
70 M3 supercharged 240z orange temporarily quick
72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
2001 lpg transit
97 transit cherry picker
2001 ldv site vehicle
Vw caddy
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  #774  
Old 13-07-2017, 11:30 PM
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Wyn Wyn is offline
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Quote:
Originally Posted by tel240z View Post
Yes John glad to see your paying attention, and the nice man from Bosch supplied nice new plugs and pins to re wire onto my harness
I was going to say, but thought best not

Been there ...
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  #775  
Old 13-07-2017, 11:32 PM
franky franky is offline
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what were all the terminal speeds from the last runs you did?
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  #776  
Old 14-07-2017, 10:33 AM
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mine? 1st run was up to 134 odd, but went down after that due to a constant misfire
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  #777  
Old 14-07-2017, 02:42 PM
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tel240z tel240z is offline
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11.5 128 mph
11.4 124 mph
11.25 127 mph
11.6 125 mph

All quite consistant

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Drives
2014 navara 3.0 V6 240 BHP
72 left hooker auto project lime
73 240z blue
70 M3 supercharged 240z orange temporarily quick
72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
2001 lpg transit
97 transit cherry picker
2001 ldv site vehicle
Vw caddy
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  #778  
Old 14-07-2017, 03:13 PM
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johnymd johnymd is offline
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For comparison on the same day and conditions.
130.55
124.92
128.81

As I guide, I was running in the 132's with my stock twins and factory ecu
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Drives:

'73 240z 1JZ-GTE. Was pretty quick. 11.10@132.5mph
'72 240z RHD (4BOA) Painted and waiting assembly.
'72 240z LHD Silver "Rat look" daily runaround.
'76 280z ExLHD Red v8 Lexus powered restomod.
'74 260z LHD Restomod just started.
'71 240z LHD zg arched. Still in California.

Go to: www.240z.me.uk to checkout the cars.
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  #779  
Old 18-07-2017, 08:28 PM
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tel240z tel240z is offline
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In the flesh and shows clearly the 2 different nozzles

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Drives
2014 navara 3.0 V6 240 BHP
72 left hooker auto project lime
73 240z blue
70 M3 supercharged 240z orange temporarily quick
72 RHD conversion project volcanic orange
78 260z daily driver brown
66 corsair
2001 lpg transit
97 transit cherry picker
2001 ldv site vehicle
Vw caddy
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