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+--- Thread: My little project - IS200 Turbo (/showthread.php?tid=1216)
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My little project - IS200 Turbo - toxo - 30-03-2018
They will be 23209-70120
Toyota use lots of 210cc injectors, N/A MK3 supras, some 4AGE engined cars for example.
BGB for your car states when testing fuel injectors:
Quote:Injection volume:
47-58cm3 (2.9 - 3.6 cu in.) per 15 seconds
Working on the basis that 47-58cm3 has a tolerance of say +/-5, I used 52cm3 as the size. Multiply that by 4 to get 60 seconds and you have cc/min (cm3 and cc same thing). That makes 208. Close enough to 210
My little project - IS200 Turbo - steviewevie - 30-03-2018
toxo They will be 23209-70120
Toyota use lots of 210cc injectors, N/A MK3 supras, some 4AGE engined cars for example.
Yep, that's the part number. So are they definitely 210cc then ? That's brilliant, that would let the map use the injector sizes of (old) 210 vs (new) 550, and the e-Manage can work out the fuelling itself, rather than having to manually input it all. Though of course the fuelling still needs setting up for the turbo.
My little project - IS200 Turbo - steviewevie - 30-03-2018
toxo BGB for your car states when testing fuel injectors:
Quote:Injection volume:
47-58cm3 (2.9 - 3.6 cu in.) per 15 seconds
Working on the basis that 47-58cm3 has a tolerance of say +/-5, I used 52cm3 as the size. Multiply that by 4 to get 60 seconds and you have cc/min (cm3 and cc same thing). That makes 208. Close enough to 210
Ah, the penny has just dropped on where you got this from. That's great, thanks :thumbup:
My little project - IS200 Turbo - toxo - 30-03-2018
Not definitely. That part number is IS200 specific more or less, and like I said I only sorta worked it out from the testing parameters in the BGB. It does sound right, though.
Googling that part number is no help either!
My little project - IS200 Turbo - toxo - 30-03-2018
Yeah sorry, I guess Lexusheads don't refer to the workshop manuals as BGBs?
They are Big Green Books where I come from :lol:
My little project - IS200 Turbo - steviewevie - 30-03-2018
toxo Working on the basis that 47-58cm3 has a tolerance of say +/-5, I used 52cm3 as the size. Multiply that by 4 to get 60 seconds and you have cc/min (cm3 and cc same thing). That makes 208. Close enough to 210
Or is you use 52.5, which is exactly half-way between 47 and 58, then you get 210 exactly :thumbup1:
My little project - IS200 Turbo - steviewevie - 30-03-2018
toxo Googling that part number is no help either!I was going to see if there was an actual physical part number on the injector, e.g. a Denso part number or whatever.
toxo Yeah sorry, I guess Lexusheads don't refer to the workshop manuals as BGBs?
I hadn't figured out what BGB stood for, though I knew what you meant. Thanks for the explanation though :lol:
My little project - IS200 Turbo - toxo - 30-03-2018
Why didn't I think of that
My little project - IS200 Turbo - steviewevie - 02-04-2018
I'm still thinking about what to do here. But I'm leaning towards the suggested re-map, using the different way of doing the fuelling (by telling the e-Manage the original injector size and the new injector size and letting it calculate things as a base), plus getting rid of the existing O2 sensor (standard cars have two sensors in the manifold, mine just has one now).
I have clarified things a bit, and the theory is that if we get rid of the sensor, the stock ECU will just revert to its pre-programmed parameters of how to fuel the car, and not try and correct what's going on (because it will be fed a signal that just tells it everything is fine). The e-Manage then can do its bit on the fuelling and won't have the stock ECU trying to override it. This will probably help the slight lumpiness, and *might* fix the very intermittent problem I had with the boost cut.
The lumpiness is a very very minor problem, by the way (and is probably a consequence of the larger injectors). A lot of people may well not be worried about it (or even notice it ?) at all, it's mainly me just wanting the car to run as "Lexus" as possible when off boost.
My little project - IS200 Turbo - edeath - 02-04-2018
Is there not a risk removing the Lambdas? If something starts to go wrong and you miss it on the AFR meter then there will be no way for either ECU to tell and try and sort it out?
Though maybe I have missed the point here lol