I had Redline Motorsports in Fort Collins Dyno the truck last night because the A/F gauge has been acting up, ie: pegs out lean, well it was really surprising to see what the hp and torque was at, 130hp at 2800rpm and 230 ft/lb of torque at 2800rpm, this is on 37" tires and 5:29 gears witha turbo charged 3FE, they said the truck is running perfectly as far as A/F ratio goes but i have a weird drop/spike in horse power and torque right after it hits max at 2800rpm, they were completely stumped on the drop/spike, also i took the truck in to get emmissions done before the dyno and it didn't pass due to running to rich, so i think the cat has to be toasted, i'm going to try and regap the plugs to 35 and clean out the air filter REALLY well and try it again, if that doesn't work i'll try a new cat, also they told me that the A/F gauges that run off of your O2 sensors are pretty much worthless as far as being reliable, so they showed me what they use in their Supra build ups, a 5-Wire wide band gauge, i guess they will tell you exactly what you are running at A/F wise, but at $500 i want to get some more opinions, but for peice of mind that my truck isn't going to blow up from running lean it may be worth it, Brad.
I got the 80 dynoed last night.
- Thread starter Bradass80
- Start date
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Brad,
I'm using a Innovate Motorsports Wide band in my Tacoma right now and I like it with the data logging it will do. I picked it up for around $340. I just installed the S/C in the Cruiser and as soon as I have time I will put in a bung on the LC to see where it's at. I think it's well worth the money now that I have it.
I'm using a Innovate Motorsports Wide band in my Tacoma right now and I like it with the data logging it will do. I picked it up for around $340. I just installed the S/C in the Cruiser and as soon as I have time I will put in a bung on the LC to see where it's at. I think it's well worth the money now that I have it.
2800 is max on these? I'd have thought you'd need to get a little higher...but guess not.
Since you failed the emissions, would that not point you to the O2 sensor(s)? Possible fuel pump or regulator issue?
You didn't say what year 80 you have, but if it's a newer one, you should put a scanner on it and see what's happening.
Since you failed the emissions, would that not point you to the O2 sensor(s)? Possible fuel pump or regulator issue?
You didn't say what year 80 you have, but if it's a newer one, you should put a scanner on it and see what's happening.
Brad's is a '91 or '92 I can never remember, but has a turbo kit on the 3FE. I understand if you want to get it to run right, but just to get it past emissions there are some tricks you can do. Namely run it almost out of gas, then dump in about a gallon of denatured alcohal (from Home Depot, etc). Usually won't run worth a crap, but will be clean.
If it's running rich that would definetly be cats I would think, since isn't the cat sposeto get hot and burnup all those gas vapors?
Wow 130hp...smoking man!!
Wonder how mine would do...probably less... 
If it's running rich that would definetly be cats I would think, since isn't the cat sposeto get hot and burnup all those gas vapors?
Wow 130hp...smoking man!!
Wonder how mine would do...probably less... - Thread starter
- #5
Yeah it's a '92, it has a high flow pump and FMU, all is working correclly according to the dyno, the only thing RLMS could even speculate as the problem causing the drop/spike in horsepower and torque was timing, but i also have a boost retard on the truck and even maxed out at 3 it didn't help, i may see if changing the timing at the dist. will help, but at $65 a pop it'll be a while before i dyno it again.
Lockd97 - Does the wide band you are using need a laptop to run?, the AEM gauge RLMS was trying to sell me didn't, it has a little computer on the back of it that does all the thinking, where did you get your gauge from?, Thanks Brad.
Lockd97 - Does the wide band you are using need a laptop to run?, the AEM gauge RLMS was trying to sell me didn't, it has a little computer on the back of it that does all the thinking, where did you get your gauge from?, Thanks Brad.
Brad, you said you had a high flow fuel pump and FMU but do you have an adjustable/tunable fuel pressure regulator? Not that it would necessarily help you pass emissions under these conditions but something like the BEGI rising-rate fuel regulators do allow you to "de-tune" fuel delivery along with retarding ignition to make it run "cleaner". They aren't cheap either unfortunately 
Good luck. It took 4 tires to get my 60 registered in El Paso Co.
Mike
Good luck. It took 4 tires to get my 60 registered in El Paso Co.
Mike
Dang, those number look too low. I know he has the 3FE, but the stock numbers on the FZFE are i think 225 horses. I would think with a turbo or a supercharger you should dyno around 300hp.
concretejungle said:
I was thinking the same thing. The stock FZ is 212hp, and with the SC, it gets up to close to 300hp. Dang...130hp with a turbo seems...that sounds more like a lawnmower on steroids.
You sure about that number?
i figured it was at the crank, but still, if i got those #s back and had a forced induction on my truck i think i would cry.
concretejungle said:
Not with the auto and full time case. There is a ton of power lost in turning that fluid. Remember this is HP hitting the ground. I think that is awesome. I bet my 91 would dyno at like 75 hp at the wheels.
Brad when you/they did the dyno, was it only rear wheel drive? You can unlock the front right? Just curious... Does their dyno do a 4wheel dyno also?
Later..
Mark
Later..
Mark
Wow, so you get a little over 50% loss of power through i guess friction and moving parts. That's a lot, but you are right these are full-time 4wd rigs. So i wonder if someone dynoed a newer say 97 with all the proper plumbing and such (hint turbocruiser) and compare it to a similar supercharged set-up what those numbers would look like?
- Thread starter
- #16
Yeah 130hp shocked me also, but that is correct at the rear wheels, they said 30-40% more at the flywheel, the 37" tires is what knocks it way down, if the truck were stock i'd be close to 300hp at the rear wheels, the turbo is a Garrett T3/T4, i'm not sure on the tuneable fuel regulator, don't think so, i failed on my HC PPM at idle it was 252 with the limit being at 220, and i also failed on my CO%, at idle it was 3.33 and at 2500rpm it was at 2.59 with the limit being 1.20, putting denatured alcohol in my tank kind of scares me, but i don't want a ticket for expired tags so i may try it, the cat has been stinking of rotten eggs for a while so i still think it's to blame for this since the truck is running almost perfectly stoich until under load then it goes a little rich like it should, any other ideas on what to check before i dump alcohol in my tank?, i'm also going to try and reset the ECU, RLMS suggested i try that also, Thanks Brad.
concretejungle said:
My estimated 75 hp at the wheels isn't really a 50% loss. I was told that the A440 wasn't that efficient of a tranny and that I could lose about 40% from that. My 91 has 225,000 miles and although the factory said 155hp when new I have little doubt that it is quite a bit less now. I would be real interested to see Hp differences between the BIG tranny and SMALL tranny to see if it made any difference.
Bradass80 said:
Don't your 5.29s compensate for that?
semlin
curmudgeon
if it is hc and co excedance at that level then the cat is a good guess. a bottle of methyl hydrate may well get you though
