I've been running bypassed for about 3 months now and haven't had any issues.

Trace the location of the folks with issues, and you may find that they're in colder climates. Here in Seattle, it doesn't get cold enough for this to be a problem.

 

My goal was not to out run anybody although I'll admit it is fun having a "sleeper". What I set out to do was see what the little V6 truck would do without using exotic fuels or gases. I wanted to only do bolt on mods and not go into the engine. Mostly,I wanted to have fun with it and that I have done.

I don't think I am going into the engine for custom work. Right now the truck runs sweet and is super dependable getting 21 MPG on the hwy in the process. I still have some ideas and feel I can make my goal of 300 RWHP and a 13.99.

Mark, I don't know what to tell you except that you don't have an Aquamist with methanol in the mix, you are not running the same exhaust setup, you don't have an 03/04 throttle-by-wire throttle body, you don't have a 7th injector set up with a fine tuned AIC, you are not running TRD headers, not running the same plugs, not running(I don't think) 96 octane fuel, probably not hitting the rev limiter when you dyno, didn't see that you were running an electric fan, ect, ect. It all adds up in the end.

No problems at all with the TB coolant bypass.

I am running the stock torque converter. This one does a great job so I figured why change.

Before playing with this truck, I hadn't been to the drag strip in over 30 years. I'm having a lot of fun. Yes, the crowd at the strip jumped on the bandwagon after the first run and cheered the little truck on the rest of the night. When I lined up with the Dodge Hemi, it was the first run of the night. Every one was laughing at the Tacoma just knowing it would lose badly. When it smoked the Dodge, everybody came running over to see what the hell was going on with the little truck. Good times for sure.

Dave

 

A higher stall will improve your 60ft time. Every .1 sec reduction in 60ft equals .2 on et.

 

I have run higher stall speed convertors on cars in the past and found that on the street, they can be a pain in the ass sometimes so on this one I thought i would stay with stock if it would hold and so far it seems to be holding OK. Thanks for the input and information though.

Dave

 

Granted, but I'm a lot closer to where you are than you make it sound...

- Exhaust, true, I'll give you the 3hp.
- 305cc injectors instead of the 7th
- SMT instead of the AIC, and I too am 12:1 through the top end
- My headers are Downey, so I'll give you another 3hp
- Plugs - actually I am running the same with the same gap
- True on the Fuel & rev Limiter
- I had been running electric fans until 2 weeks ago

hmm... I just don't see how you can be doubling the stock HP. The Aquamist system must be giving you most of that added power. Incredible.


No matter! Very cool runs Dave!

 

No problem. Be sure and let us know when you break into the 13's.

I wouldn't get to hung up on dyno comparisons. Unless you both dyno'd at the same place on the same day, there will be variations. Some brands read much higher than others.

 

Naksukow is right. Dyno numbers are nothing to get hung up about.

A few things though:
Exhaust----I am running 2.5" piping, flow through Muffs and no cats.
Removing the cats alone made 18 HP difference on this truck.

Larger injectors VS 7th: Completely different animal.
Guys with a properly tuned 7th all seem to be making more HP than a
"normal" fuel kit or a setup like you have. I think it has to do with the TRD piggyback control box. I wish I had the unlock code to know what they
have done inside. Also the 7th injects fuel just after the TB so there is a cooling effect to the air charge and the fuel is super atomized after going through the blower. Because of the WI and the cooling effect of the blown in fuel, I am running full timing advance. (TRD told me the TRD piggy back even adds more at high rpm wide open throttle). Advanced timing is critical in making HP. You know this I realize.

Speed limiter: Before the speed unlimiter was added, I could only run to 5100
rpm before the speed limiter cut me off. With the unlimiter I run to the rev limiter @ 5600 rpm. On this truck, the difference is as much as 15 HP.

Dyno: We put a S/C 4Runner with a blower and a well tuned URD kit on the dyno 5 minutes after we dyno'd mine and it made a respectable 230 RWHP @ 260 ft lbs of torque. That rules out the dyno being off. It is a fairly new DynoJet with the new software that doesn't allow the operator to cheat.

Fuel: between the high octane and the methanol in the WI there is a big difference. I did too many things at once so I can't give accurate numbers but they are sizable.

No big deal Mark but you asked why. Between the cats and speed limiter alone we are looking at 33RWHP not counting fuel mod and timing differences.
This engine just simply runs harder than others and nobody can figure out why. URD has looked at it. Mark at Split Second has looked at it. Brian at URD seems to think it is the 04 model ECU. Gadget said that it was the best running 3.4 he has ever seen. My good luck I guess.

It's all good Mark. Come on down to the bay area and we will have a dyno day and you can see for yourself. I have to go back anyway----I came up with a new idea last night.

Dave

 

Oh I know Dave, it's cool. I'm just befuddled at the moment. I'll work through it and figure it out.


Oh gawd... If you break 300hp at the tires I'm gonna puke.

 

I think its the ECU since you mentioned. Since 04 was the last year they will use the 3.4 motor. Toyota probably ironed out all the kinks and got the most juice out of the 3.4. Thats my 2 cents.

 

That's just down right impressive. Makes me want to do all of that on my 99 4Runner. Eventually I will, but first I have to lift and gear it for more go off road.

 

Now that's ˟˟˟˟ing funny!!!

Dave

 

Dude, I'll provide pictures and everything. It'll be quite the incentive for me to figure this one out.

 

Get your camera out-----it's only 12.9 HP away but I promise I will quit after that OK?

 

tee-hee... okay, but! My statement embraced the concept of you _breaking_ 300hp at the wheels... An additional 12.9hp would only get you TO 300hp.


Geeeze Dave, if you really hit 300hp at the wheels, you're talking about 350+ at the crank with no internal mods. That's insane!

Well done sir.

 

Hahah take off the intake and exhuast that should net out your other 12 hp lol??

 

I smell open headers coming!!!

Hey did you ask that rumble bee if, "THAT THING GOTTA HEMI?" before or after you whooped its azz?

 

I always see the Pontiac GTP (supercharged) guys at the track running with no exhaust. I guess they have a dump pipe or detach it, I am not sure which. I bet this Taco would sound just like they do going down the track (since they are also Auto's). It's a very unique sound to hear a SC'd V6 with open headers. In fact, I can't really explain it.

I always heard that the exhaust hooked up on SC'd vehicles was better. Something to do with exhaust scavenging. I know it helps on turbocharged vehicles to remove it, but I would be curious to know the effects on a SC'd Taco. I doubt it would be much different than your current set-up; no cats and mufflers. Probably not worth your time.

 

Dave, how long does the aquamist tank last before you have to refill it?
Also, is the aquamist system "always on"? ....or only at WOT?

 

Ok dammit----13.0!! You are tough

I don't know if open headers will give much more than a headache. The exhaust is "free flowing" now. I do run mufflers though. In fact, I have two straight through Magnaflows on. One 18" in the "test pipe" and a 24" in the rear. It's nice and quiet around town (sleeper effect you see) but when you nail it and get on boost, that's another story. My friends say it doesn't sound like a V6. I asked one what it sounds like going down the track and he just said "mean".

I have a one gallon tank for the Aquamist and it lasts for a surprisingly long time. I took a 2000 mile trip a couple of months ago and still had mix in the tank when I got back. It all depends on how long you stay in boost. I have it set to come on at 5psi boost. I was running the .8mm nozzle and just switched over to the .9mm nozzle. That will use more mix but not that much more. The other day I made 5 dyno runs and 5 passes at the track and used maybe a quart.

The young man with the Hemi was pissed to say the least. His problem was that he made such a big deal about his truck before the races started. He had intake and exhaust mods and was cranking it up for people gathered round and revving it while we were parked in line waiting to race. I didn't even lift my hood. After the race, he was telling people that the "ricer truck" was running nitrous. My friend was there when he said that and told him "Dude, you got beat by Grandpa driving a V6 4X4 automatic running nothing but gasoline". Next thing we know, he's gone. We never saw him race again.

Dave

 

Priceless.