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Engine & DrivetrainDiscussions about the engine and drivetrain of your vehicle.
This is a discussion thread titled "2005 Tundra Double Cab Dyno Numbers", within the Engine & Drivetrain forum, part of the Technical & Vehicle Assistance Forums category.
that run sounded very nice, I like the second run cause it sounded like a more consisant rise than the first run!!!
on a side note, has anyone run the vvti 4.7L on the dyno with a before and after on the K&N... I would be curious to Know what difference the vvti makes with the HI-Flow type filters. I know that it didn't make any real power on the 03 and 04 tundras, but with vvti I would think it could make better power.
P.S. dont mean to hyjack the thread.
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Did you regear for your tires or are they not any taller than stock? Although those numbers are pretty good I think it should put down a little more HP, somebody correct me if i'm wrong, torque was really good though.
nope never regeared.. no real need to, they aren't that much bigger overall from stock. I will post the curve once its updated.. crazy curve though due to auto tranny.
Given the 285/75's are 7.4% larger in diameter than the stock 265/70's. With the 7.4% added, stock tire should put out 250hp and 311lbtq, that's not including the weight consideration difference between the two sizes. Another thing, looks like you ran in 3rd, the 5spd auto's 1:1 ratio is 4th, unless you started in 2nd which would explain the 3 gears you truck went through. Have you put on any performance mods?
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Okay folks here is the graph and a little more detailed information.. check out the flywheel numbers.
Granted the dyno didnt do such a great job reading.. got to love traction control. I am going to get it dynoed again in the near future, and hopefully it will be a better reading. Its better than nothing.
Is the graph available for the lower RPM ranges? I'm interested in seeing how what the curves look like from 2k through the peak. Most driving is in the lower RPM range, at least for me.
Is the graph available for the lower RPM ranges? I'm interested in seeing how what the curves look like from 2k through the peak. Most driving is in the lower RPM range, at least for me.
Good point. Also, a comparison to the non-vvti models accross the range would be nice to have, stock for stock.
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1994 HILUX SURF 3.0 TURBO DIESEL (4Runner )
previously:
2004 Toyota Tundra DC 4x4 (Spintech Sportsman XL) SOLD
2003 Subaru Impreza WRX Wagon. TOTALED BY WIFE
2001 Trail-Lite 7253 Travel Trailer (Equal-i-zer hitch, Prodigy Brake Controller) SOLD
1995 Saturn SL2 Beater (36mpg average) DONATED
Is the graph available for the lower RPM ranges? I'm interested in seeing how what the curves look like from 2k through the peak. Most driving is in the lower RPM range, at least for me.
Most of the driving is around 2k but all tq/hp nunbers are measrured at wide open throttle. I'd like to see the graph from 2k on also but I've noticed that when I floor my 4.7vvt-i the 5speed quickly shifts down to a gear so the rpm is above 4000rpm and from 4000 to 5400 rpm is where you get the most combined TQ and HP.The other day I was doing about 20mph and I floored it and the awesome 5 speed tranny shifted down 2 gears, 3rd to 1st and the engine was instantly at 4000rpm and I experienced and awesome rush of power. Amazing!
We usually do a group dyno once a month or so. 40 bucks for 2 runs with A/F.
I will take a look at the profile for you guys. Not sure why they cut off the rest of the run.. they ran it through 3 gears.
One thing to note. My next time I should put down better numbers. Just had the oil changed for the first time today since I bought the truck. With a fairly fresh oil change and next time some 91 octane, it should put down some better numbers.
We usually do a group dyno once a month or so. 40 bucks for 2 runs with A/F.
I will take a look at the profile for you guys. Not sure why they cut off the rest of the run.. they ran it through 3 gears.
One thing to note. My next time I should put down better numbers. Just had the oil changed for the first time today since I bought the truck. With a fairly fresh oil change and next time some 91 octane, it should put down some better numbers.
#1 - What is an A/F
#2 - If it isn't a problem I would like to get in on those group runs at least once before I do any engine modifications... Let me know, I can be there whenever
2005 Tundra Double Cab Dyno Numbers
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