I finished my turbod 96 lx450
06-05-2006, 12:47 PM
#31
3.0 BAR
Join Date: May 2003
Posts: 6,279
Re: I finished my turbod 96 lx450
def.ly run a bov, but since it`s going off road i would recirculate it instead of venting it off becasue of all the dirt and ---- on the road. don`t cheap out on bov on a decent setup 
get something brand name or may be an oe bov such as the ones from a supra or MR2/dsm
get something brand name or may be an oe bov such as the ones from a supra or MR2/dsm
06-07-2006, 01:13 PM
#34
0.5 BAR
Thread Starter
Join Date: Mar 2006
Posts: 50
Re: I finished my turbod 96 lx450
ok i will get a BOV
next question
my turbod Ilk450runs great but I do worry if it is running out of fuel and would still like more power (there is never enough). I have put a 255lph fuel pump on her and have an egt that reads about 1300' on highway w ocasional boosting. I have a cheap a/f guage (not wideband) that is not looking lean. I have a 6lb spring on wastegate and she doesn't boost above 7psi.
I am not ready to take the plunge for ecu management right now as I don't have the time to mess with it-so many wires and research. I would like to just plug in a unichip for my motor and use a laptop to make changes if I could only pirate the software. I have heard from those with forced induction with my motor (1fvfe 4.5l i6) that I will get real bad milage on this motor if I try and run a rising rate regulator. A gentleman from a shop in denver actually let me see the fuel maps from a supercharged truck like mine running a rising regulator and the truck ran way rich and got 9mpg. the same truck got 70 more hp and had much better fuel mapping and mpg when they went with an smt6. One problem with this example is that the truck was a 93 (mine is a 96) and toyota used a speed density sensor and obd1 management until 1995 when they went to MAF and the more efficient obd2 management. so perhaps my truck would respond better to a rising rate regulator.
Do rising rate regulators normally cause a problem with milage? this is important as my truck only gets 13-14mpg and every drop counts.
What other options do I have? Is it true that rising regulators cause bad milage?
next question
my turbod Ilk450runs great but I do worry if it is running out of fuel and would still like more power (there is never enough). I have put a 255lph fuel pump on her and have an egt that reads about 1300' on highway w ocasional boosting. I have a cheap a/f guage (not wideband) that is not looking lean. I have a 6lb spring on wastegate and she doesn't boost above 7psi.
I am not ready to take the plunge for ecu management right now as I don't have the time to mess with it-so many wires and research. I would like to just plug in a unichip for my motor and use a laptop to make changes if I could only pirate the software. I have heard from those with forced induction with my motor (1fvfe 4.5l i6) that I will get real bad milage on this motor if I try and run a rising rate regulator. A gentleman from a shop in denver actually let me see the fuel maps from a supercharged truck like mine running a rising regulator and the truck ran way rich and got 9mpg. the same truck got 70 more hp and had much better fuel mapping and mpg when they went with an smt6. One problem with this example is that the truck was a 93 (mine is a 96) and toyota used a speed density sensor and obd1 management until 1995 when they went to MAF and the more efficient obd2 management. so perhaps my truck would respond better to a rising rate regulator.
Do rising rate regulators normally cause a problem with milage? this is important as my truck only gets 13-14mpg and every drop counts.
What other options do I have? Is it true that rising regulators cause bad milage?
06-07-2006, 04:10 PM
#35
0.5 BAR
Join Date: May 2003
Posts: 152
Re: I finished my turbod 96 lx450
awesome SUV 
don't trust your narroband gauge, EGTs are a big help but a narrowband isn't telling you a whole lot, if it's 14.8+ A/F it shows rich, if it's 14.6+ it shows lean.
No matter what you do you are going to lose some gas mileage, I've driven my car with and without turbo and I only see about 5% diff under normal driving which is easy to live with. I think with a turbo you get upto cruise speed alot quicker so it doesn't make as much diff as some ppl think, I find without the turbo I'm holding my foot down alot more often.
If you want to keep it as OE driveable as possible look at getting an extra injector controller, the one from sdsefi.com is pretty simple and easy to setup.
I personally think 212 degrees is pretty hot considering most coolant hoses are only rated to 220 so some more engine/engine bay cooling/ventillation wouldn't hurt.
Neil
don't trust your narroband gauge, EGTs are a big help but a narrowband isn't telling you a whole lot, if it's 14.8+ A/F it shows rich, if it's 14.6+ it shows lean.
No matter what you do you are going to lose some gas mileage, I've driven my car with and without turbo and I only see about 5% diff under normal driving which is easy to live with. I think with a turbo you get upto cruise speed alot quicker so it doesn't make as much diff as some ppl think, I find without the turbo I'm holding my foot down alot more often.
If you want to keep it as OE driveable as possible look at getting an extra injector controller, the one from sdsefi.com is pretty simple and easy to setup.
I personally think 212 degrees is pretty hot considering most coolant hoses are only rated to 220 so some more engine/engine bay cooling/ventillation wouldn't hurt.
Neil
06-09-2006, 09:34 AM
#39
1.0 BAR
Join Date: Jan 2004
Posts: 255
Re: I finished my turbod 96 lx450
Sorry to post again.
I know when I was going to boost my sc400 which has the 1uzfe v8, everyone pointed to the tranny before the engine. For what you seem to be using it for, a tranny cooler might be a good idea.
I know when I was going to boost my sc400 which has the 1uzfe v8, everyone pointed to the tranny before the engine. For what you seem to be using it for, a tranny cooler might be a good idea.
06-12-2006, 12:08 AM
#40
0.5 BAR
Thread Starter
Join Date: Mar 2006
Posts: 50
Re: I finished my turbod 96 lx450
you are right good sir about the tranny cooler---thats why I got a big one 
. Also the lk450/landcruiser has a dummey light that starts blinking when the tranny fluid gets to 220'. Mine has never blinked. this truck also has a dummy light for the oil level and even for the brake fluid level. gotta love dummy lights.
. Also the lk450/landcruiser has a dummey light that starts blinking when the tranny fluid gets to 220'. Mine has never blinked. this truck also has a dummy light for the oil level and even for the brake fluid level. gotta love dummy lights.
