got the Turbo II on a dyno today....AFRs are real real lean

Whizbang · 10-25-2008, 07:48 PM

So lean we decided not to even go above 5500 in 3rd.

more specifically (wish i had a scanner) the richest i saw was 12.9.

data points below for third gear seeing max press. of 7lbs and a 6300 ft. altitude.

3172 rpm -- 15.5 afr
3592 rpm -- 14.5 afr
4011 rpm -- 14.0 afr
4430 rpm -- 13.5 afr
4850 rpm -- 13.2 afr
5269 rpm -- 13.0 afr

and we stopped there.

video: http://www.youtube.com/watch?v=HBcakMf78kE

serious lack of fueling....

WE3RX7 · 10-25-2008, 07:57 PM

OUCH - what #s did u make at that RPM though, lol...

Also what are you doing on the timing side as well.... 13.0AFR w/ X boost is dangerous enough, lol..

Whizbang · 10-25-2008, 08:29 PM

no idea on timing. the car is stock with a 2.5 exhaust

WE3RX7 · 10-25-2008, 09:44 PM

Ah - ok... thats pretty nuts for only having a 2.5" exhaust, what were your boost levels at 5k?

Whizbang · 10-25-2008, 09:50 PM

eh....8ish. the alt. does make for some serious lag, but i think the stock fuel system needs some revamping.

88turboii · 10-26-2008, 10:09 PM

not good at all.. might want to check if your FPR line is connected. If everything checks out, swapping your secondaries for 750's ought to put you back in the safe zone

10-27-2008, 05:06 AM

WOW.. thats high lol... yeah I think if u find to have no external problems I'm with 88turbo.. swap to 750 secondaries and hit the dyno again..

10-25-2008, 07:48 PM	#1
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 20	got the Turbo II on a dyno today....AFRs are real real lean So lean we decided not to even go above 5500 in 3rd. more specifically (wish i had a scanner) the richest i saw was 12.9. data points below for third gear seeing max press. of 7lbs and a 6300 ft. altitude. 3172 rpm -- 15.5 afr 3592 rpm -- 14.5 afr 4011 rpm -- 14.0 afr 4430 rpm -- 13.5 afr 4850 rpm -- 13.2 afr 5269 rpm -- 13.0 afr and we stopped there. video: http://www.youtube.com/watch?v=HBcakMf78kE serious lack of fueling.... __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

10-25-2008, 08:29 PM	#3
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 20	no idea on timing. the car is stock with a 2.5 exhaust __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

10-25-2008, 09:50 PM	#5
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 20	eh....8ish. the alt. does make for some serious lag, but i think the stock fuel system needs some revamping. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

10-25-2008, 07:57 PM	#2
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA Posts: 1,812 Rep Power: 19	OUCH - what #s did u make at that RPM though, lol... Also what are you doing on the timing side as well.... 13.0AFR w/ X boost is dangerous enough, lol..

10-25-2008, 09:44 PM	#4
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA Posts: 1,812 Rep Power: 19	Ah - ok... thats pretty nuts for only having a 2.5" exhaust, what were your boost levels at 5k?

10-26-2008, 10:09 PM	#6
88turboii destroy, rebuild, repeat Join Date: Feb 2008 Location: Charleston, SC Posts: 395 Rep Power: 18	not good at all.. might want to check if your FPR line is connected. If everything checks out, swapping your secondaries for 750's ought to put you back in the safe zone

10-27-2008, 05:06 AM	#7
SpooledupRacing Guest Posts: n/a	WOW.. thats high lol... yeah I think if u find to have no external problems I'm with 88turbo.. swap to 750 secondaries and hit the dyno again..