5.7L Tacoma

[d-lo]

you wouldn't want to stress a V6 with a supercharger but you would rip an entire truck apart and try and beef it up so you could push it beyond what it was designed to do?
leaving any tow vehicle in overdrive while towing is not advised, especially uphill.
why the insistance on forcing a taco to be something its not? the new tacos are pretty large and not really that much smaller than a tundra. they look bigger than gen1 tundras sometimes.
i think you will spend a huge amount of money for a truck that will probably be problematic and have no warranty... all for 5.3" less width?!
i'd be interested to follow your project, however ill-advised i may think it is.

[Marazzito]

Originally Posted by RickyCRX

I'm not looking to do some extreme drag racing or anything like that. I also wouldn't want to supercharge the V6 and put extra stress on it for long periods of time while pulling hills with a trailer. That just seems like you'd be pushing the engine itself to the limits.

I mainly want the big V8 in a late model Tacoma for highway towing. Right now while going up hills I have to shift to 4th gear and really lay into the throttle with my 4Runner to maintain 65mph. I would prefer to be able to leave it in overdrive and not lose speed so badly due to the additional torque that the 5.7L engine could provide. I wouldn't want a 4WD to rock crawl or anything. I'd want to take a 2WD '05+ Tacoma and a 2WD 5.7L Tundra drive train and combine them. I might need to get ahold of my neighbor's 5.7L Tundra for an afternoon and take some exact measurements, then go over to my parent's place and take measurements of my dad's '06 Tacoma to see if this would work or not.

Thanks for the words of caution about the rear axle, but I don't plan to be rough with it. It'll be working hard, but at highway speeds -- it wouldn't be subjected to any rough or jarring traction/no-traction situations that tend to break things.

Ricky

After the problems TRD had with Supercharging the 4.7, they put the 4.0 through thousands of hours of stress testing. That was a concern for me and when I contacted TRD, they assured me that the 4.0 is plenty strong to take the added stress of a Supercharger even while towing. Toyota is also very conservative and they are not going to put out a product or allow TRD to that they have had known problems with in the past with out a lot of testing.

What exactly do you tow? I probably push the Tacoma's towing limits just about as much as anyone (with out exceeding them) on a somewhat regular basis. The Tacoma pulls my FJ40 very stable, even at 75 MPH. It also has plenty of power to pull the 6,000 lb trailer up every pass I have towed over while still maintaing the speed limit. Don't get me wrong I'm not in 6th gear on moutain passes, some I am in 3rd, but the Tacoma has the power to pull and the engine is happy to work.

[FIVEPOINTSEVEN]

An X-runner with an iForce 5.7 swap would be so friggin awesome!! Probably would run with C5 Corvettes lol.

[FIVEPOINTSEVEN]

Where'd everybody go lol??

[Marazzito]

Originally Posted by FIVEPOINTSEVEN

An X-runner with an iForce 5.7 swap would be so friggin awesome!! Probably would run with C5 Corvettes lol.

Probably would kill the x-runners awesome handling though. I don't know specifics but I assume that the 5.7 weighs at least a few hundred pounds more than the 4.0. Maybe TRD is reading this and they will give it a shot. They have the Money and knowledge to do it right if it can be done. They have put a 4.7 in a Tacoma AC Short bed (the access cab short bed is about as cool as the 4.7 engine they put in it) and in an FJ Cruiser... why not try the 5.7 in an X-runner.

http://trdusa.com/features.cfm?feature=fj_cruiser
http://www.toyotanation.com/forum/sh...d.php?t=245405

I have a better idea... how about the Lexus IS F 5.0 in an X-runner? Smaller engine so it should fit better, lighter so it shouldn't kill the handling and more HP since now we are talking about a race truck! But let's keep a manual tranny with the option of an 8 speed, lower the gears in the rear-end to make it a real dragster.

Dodge put a Viper engine in a Ram... I bet the much lighter X-runner would be faster. If it was a production vehicle, I would be much less worried about the return of the Supra!

TRD are you listening?

[FIVEPOINTSEVEN]

Originally Posted by Marazzito

Probably would kill the x-runners awesome handling though. I don't know specifics but I assume that the 5.7 weighs at least a few hundred pounds more than the 4.0. Maybe TRD is reading this and they will give it a shot. They have the Money and knowledge to do it right if it can be done. They have put a 4.7 in a Tacoma AC Short bed (the access cab short bed is about as cool as the 4.7 engine they put in it) and in an FJ Cruiser... why not try the 5.7 in an X-runner.

Toyota Racing Development
Tacoma V8 Incros Concept - Toyota Forums :: Toyota Nation

I have a better idea... how about the Lexus IS F 5.0 in an X-runner? Smaller engine so it should fit better, lighter so it shouldn't kill the handling and more HP since now we are talking about a race truck! But let's keep a manual tranny with the option of an 8 speed, lower the gears in the rear-end to make it a real dragster.

Dodge put a Viper engine in a Ram... I bet the much lighter X-runner would be faster. If it was a production vehicle, I would be much less worried about the return of the Supra!

TRD are you listening?

I agree...That 5.0l V8 would be great for the x-runner! I'll take a 400+hp Tacoma any day!

[Marazzito]

I guess we are the only two people that would buy an X-runner with the IS F 5.0 in this forum.