Injectors...

cre · 03-16-2013, 05:55 PM

If you get used injectors do yourself a big favor and get them professionally serviced and blueprinted. It would suck to lose an engine because one was shot.

EDIT: No idea what happened to your other post, it wasn't deleted. Perhaps you accidentally posted it in another thread. Dunno.

MA70-3.0GT · 03-16-2013, 09:31 PM

Wow, 1600cc injectors http://www.ebay.co.uk/itm/X6-High-fl...item3372c20898

Guess you'd need a fuel controller for injectors that big hahaha!

But I suppose the real question is, would anyone trust their engine to a set of $500 ish 1600cc injectors from china!?! (what's the difference between high impedance/low impedance by the way, would low impedance need a resistor inline to function?)

MA70-3.0GT · 03-16-2013, 09:49 PM

Just asked the seller if any flow/pattern paperwork comes with the injectors,

I'm thinking OK they're cheap Chinese crap but (and by no means am I definitely thinking of buying them....

yet!) I figure as returns are accepted & it's thru' paypal it may be interesting to get some & have them tested...

In my experience of Chinese/Taiwanese stuff the quality control is the only really lax thing & some stuff ends up being great and a massive bargain while someone else could buy the same thing & it's D.O.A.

cre · 03-16-2013, 10:47 PM

No, you would need a standalone. Even if the fuel controller were capable of pulling that much fuel the modified data the ECU receives will cause the fuel map to shift (mostly correctable with the piggyback) and the timing map will shift significantly. There may be additional issues that I'm not thinking of at the moment.

MA70-3.0GT · 03-16-2013, 11:08 PM

Megasquirt anyone?

Also I guess 1600cc injectors would (despite the sellers assertions) cause crap low speed fuelling no matter what system you used as even the tiniest pulsewidth would be too much juice? It's a shame he doesn't seem to have any 550 ish units

That said, for the price I'm still half tempted to get a set & have them blueprinted "just in case" of any future desire to do a monster build...

cre · 03-17-2013, 12:10 AM

I wouldn't run them in a daily driver... Or a weekend ride unless you're running a turbo which doubles as a tree chipper it's a poor choice.

MA70-3.0GT · 03-22-2013, 09:25 PM

Quote:

Originally Posted by cre

I wouldn't run them in a daily driver... Or a weekend ride unless you're running a turbo which doubles as a tree chipper it's a poor choice.

That was exactly my thoughts, at the price just hold onto them for if that rain forest-eater ever materialises. TBH though I just spotted a pair of XJ750 seca's 10miles down the road so the money might go on one of them anyhow lol

03-16-2013, 05:55 PM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	If you get used injectors do yourself a big favor and get them professionally serviced and blueprinted. It would suck to lose an engine because one was shot. EDIT: No idea what happened to your other post, it wasn't deleted. Perhaps you accidentally posted it in another thread. Dunno. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

03-16-2013, 09:31 PM	#2
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	Wow, 1600cc injectors http://www.ebay.co.uk/itm/X6-High-fl...item3372c20898 Guess you'd need a fuel controller for injectors that big hahaha! But I suppose the real question is, would anyone trust their engine to a set of $500 ish 1600cc injectors from china!?! (what's the difference between high impedance/low impedance by the way, would low impedance need a resistor inline to function?) __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

03-16-2013, 09:49 PM	#3
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	Just asked the seller if any flow/pattern paperwork comes with the injectors, I'm thinking OK they're cheap Chinese crap but (and by no means am I definitely thinking of buying them.... yet!) I figure as returns are accepted & it's thru' paypal it may be interesting to get some & have them tested... In my experience of Chinese/Taiwanese stuff the quality control is the only really lax thing & some stuff ends up being great and a massive bargain while someone else could buy the same thing & it's D.O.A. __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

03-16-2013, 10:47 PM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	No, you would need a standalone. Even if the fuel controller were capable of pulling that much fuel the modified data the ECU receives will cause the fuel map to shift (mostly correctable with the piggyback) and the timing map will shift significantly. There may be additional issues that I'm not thinking of at the moment. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

03-16-2013, 11:08 PM	#5
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	Megasquirt anyone? Also I guess 1600cc injectors would (despite the sellers assertions) cause crap low speed fuelling no matter what system you used as even the tiniest pulsewidth would be too much juice? It's a shame he doesn't seem to have any 550 ish units That said, for the price I'm still half tempted to get a set & have them blueprinted "just in case" of any future desire to do a monster build... __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

03-17-2013, 12:10 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	I wouldn't run them in a daily driver... Or a weekend ride unless you're running a turbo which doubles as a tree chipper it's a poor choice. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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