ECU mods for 1st gen?

Exactly. Glacial

If he's looking for some ez performance, going from 3.40's or whatever to some 4.10 or 4.30 might make a nice difference, and be easy (depending on what the junkyard selection is like)

 

I think these V6 engines are rated about 190 hp, not made for speed.

You should experience a good down hill run on a 20 speed carbon frame bicycle with tiny ass tires pumped up to 140 psi. Fastest I ever allowed myself to go was about 58-60 mph, then it's time to hit the brakes and slooooowww down a bit. I did a bike ride in the mountains here in N.C. out of Boone, and when we were coming down the other side of Grandfather Mt. on a windy ass road doing 50mph, you could look over the side of the road, and it was a loooongg way down. Pucker factor was off the scale.

 

5.29s and I think I could do a burn out on dirt

 

I used to race DH, DS CX too.

I've done 55-60 on my road bike, and it felt like matter was about to start falling apart. Full tuck, just holding on.

 

I'm new to this forum, but regarding the 1st gen tacoma. I have a 1999 Tacoma Prerunner 2.7L, I'm the second owner. I bought it returned lease at the start of 2003. Around that time there was a performance auto store called Autobacs. They had a performance upgrade kit that consisted in me taking the ECU to them. They sent it to Japan for software upgrading. When i got my ECU back, they gave me a fuel pump and injectors. The paper said if i needed replacement they where for a 2000 lexus ES300 3.0 v6. After I got the fuel pump and injectors installed, I got the truck dyno. I remember i got like 205 HP and 235 torque. Also it has pass california smog test, I have never been flag for anything. I don't know if such upgrade still exist.

 

A 2.7 getting 205 to the wheels sounds unbelievable

 

Did you get a before dyno? Some of those things have "correction" factors applied to them that are completely bonkers

 

You cannot really tune the stock ECU.

You need something akin to the Haltech 1500, etc. plus a new engine harness and instrument cluster harness. Check out LC Engineering and-or SNP Speed. They're both located in Lake Havasu, Arizona.

Regardless, you aren't approaching this properly. Re-tuning won't really help. You need a larger engine or some sort of forced induction system plus different engine management system (ECU).

 

I think OP is long gone by now. If you're willing to run premium fuel an NA tune can add some power as well. I'd estimate there's 20-30hp left untapped under the curve on these trucks. I have a lot more timing in my tune than a stock truck does before I get into boost and man it wakes it up.

 

Reach out to quantum auto. They can remap toyota ECU. Not sure they have an option but maybe they could help you out.