1000cc injectors? Can these be drivable?

olsonjus · Post by **olsonjus** » Wed Nov 30, 2005 9:14 pm

I'm running a big turbo setup that requires me to run 1000cc injectors per cylinder. How driveable will my car be with these injectors. I was going to do 2 sets of injectors, but I really dont have the room to fit it all.

Will I be able to drive my car every day with such large injectors on ms2 with its flyback board? I dont want to hate my car because it stalls and runs pig rich at idle all the time.

Regards.
Justin

whittlebeast · Post by **whittlebeast** » Thu Dec 01, 2005 4:19 am

They will be fine as long as its a 4 liter motor. We need a little more info like displsacment, boost, HP, min and max RPM, ms2 or Extra, is staged injection an option, will it ever have to pass a polution inspection.....

My two cylinder 800cc motor has a pair of 800s and it idles fine....... Oh did i forget to point out that its a two stroke that idles at 3000 rpm and doesn't start making any power till 6000 RPM and has to run MAF to find the power band hit. Thats my point

AW

Post by **efahl** » Thu Dec 01, 2005 9:59 am

whittlebeast wrote:They will be fine as long as its a 4 liter motor. We need a little more info like displsacment, boost, HP, min and max RPM, ms2 or Extra, is staged injection an option, will it ever have to pass a polution inspection.....

I'll guess and see how close I can get:

1) 2222 cc, 5 cyl, 5x1000 cc injectors
2) 30 psig boost
3) 650 hp
4) Idle = 850 rpm, redline = 7500 rpm
5) MS-II
6) No inspections

Close?

olsonjus · Post by **olsonjus** » Thu Dec 01, 2005 10:24 am

efahl wrote:
whittlebeast wrote:They will be fine as long as its a 4 liter motor. We need a little more info like displsacment, boost, HP, min and max RPM, ms2 or Extra, is staged injection an option, will it ever have to pass a polution inspection.....
I'll guess and see how close I can get:

1) 2222 cc, 5 cyl, 5x1000 cc injectors
2) 30 psig boost
3) 650 hp
4) Idle = 850 rpm, redline = 7500 rpm
5) MS-II
6) No inspections

Close?

1)2365cc, 5cyl, 5*1000cc injectors
2)35-40psig boost
3)750 hp
4) Idle =850(this would be great), Redline = 8000+ rpm
5) MS-II
6) No inspection

whittlebeast · Post by **whittlebeast** » Thu Dec 01, 2005 10:54 am

Eric

Impressive guess..but I think you cheated

AW

whittlebeast · Post by **whittlebeast** » Thu Dec 01, 2005 4:24 pm

I am getting a pw of about 1.7 sec at a 1300 idle. This would be a slight inconvinence considdering the ride the a quatro could deliver. With ms2 it should work. The reqfuel ends up at 2.9 (I happen to run a reqfuel of 3.8 on the ski). Per RC Engineering, I am not even shure that 5 1000s are even big enough. I would rather deal with a bad idle than run out on top. I assume you know all about rising pressure fuel pressure regulators. I would try it

jsmcortina · Post by **jsmcortina** » Thu Dec 01, 2005 4:31 pm

MS2 has the pulse width resolution to be happy with 1.7ms at idle.

MS1 base code or MS1/Extra do not offer enough resolution to idle well with such a low pulsewidth.

James

olsonjus · Post by **olsonjus** » Thu Dec 01, 2005 8:37 pm

People get 1600cc injectors to idle with the AEM injector driver box. Would one of these be of any use for me when using MS2??

http://store.summitracing.com/default.a ... 115+400407

MegaDave · Post by **MegaDave** » Thu Dec 01, 2005 11:02 pm

olsonjus wrote:People get 1600cc injectors to idle with the AEM injector driver box. Would one of these be of any use for me when using MS2??

http://store.summitracing.com/default.a ... 115+400407

Whats the idle speed that these people have with 1600cc injectors?

This might be a better link to the injector driver box from AEM that olsonjus mentioned:
http://store.summitracing.com/default.a ... toview=sku

olsonjus · Post by **olsonjus** » Fri Dec 02, 2005 8:23 am

Yeah, thats what I was trying to link to. People with supras are idling 1600cc injectors at 1100 rpm. 13:1 A/F ratio.

"My car has 1600cc's, idles at 1100rpm, 13.0 a/f. No injector driver and I have enough fuel with three Walbro's and the 1600's for over 1300rwhp with ease.
__________________
Ryan Woon
1400rwhp+ 1000ft/lbs+ Torque No NOS
Best 1/4 8.99@165.7mph
Best Mph 167.88mph
Best 60ft 1.38
3.4L Equipped!
3550lbs at the Scales!!!
480-626-2803
http://www.WOTM.com
Undefeated against all 6spd Supras "

Quote:
Originally Posted by WOTM
My car has 1600cc's, idles at 1100rpm, 13.0 a/f. No injector driver and I have enough fuel with three Walbro's and the 1600's for over 1300rwhp with ease.

Same here but if you drive your supra around town in stop and go traffic you will kill the plugs very quickly with the 1600's... I installed the AEM injector driver and haven't had this problem and can idle at 14.7-15.0 A/F with no problems at 1100rpm.

http://www.supraforums.com/forum/showth ... driver+box