2005 2.7L has more ponies...why?
#22
Contributing Member
Join Date: Jun 2002
Location: Brooklyn, NY
Posts: 4,868
Likes: 0
Received 0 Likes
on
0 Posts
Couldn't you just switch the heads?
I'm a noob when it comes to engine internals, I mean... I know the basics... but when it comes down to rebuilding I jsut don't have experience... ANYway...
I know my honda buddies just talk about how they need a VTEC head bla bla, could this be the same with the yota heads?
Just food for thought...
I'm a noob when it comes to engine internals, I mean... I know the basics... but when it comes down to rebuilding I jsut don't have experience... ANYway...
I know my honda buddies just talk about how they need a VTEC head bla bla, could this be the same with the yota heads?
Just food for thought...
#23
Originally Posted by turboale
Couldn't you just switch the heads?
I'm a noob when it comes to engine internals, I mean... I know the basics... but when it comes down to rebuilding I jsut don't have experience... ANYway...
I know my honda buddies just talk about how they need a VTEC head bla bla, could this be the same with the yota heads?
Just food for thought...
I'm a noob when it comes to engine internals, I mean... I know the basics... but when it comes down to rebuilding I jsut don't have experience... ANYway...
I know my honda buddies just talk about how they need a VTEC head bla bla, could this be the same with the yota heads?
Just food for thought...
#24
Contributing Member
I think the biggest expense in a VVT-i swap would be the ECU and harness. The Toyota system is a hydraulically-controlled intake cam phaser controlled by an entirely different learning ECU. It pays big dividends in power, economy and emissions control.
I've owned a few Toys/Lexi with the system and it's incredible. I'll take low rpm torque over high rpm horsepower for street use any day. What's interesting is that the all-out race prepped engines, like the GrandAm series IS300's with 2JZ-GE's, have VVT-i disabled in favor of straight grind long duration high lift cams.
I've owned a few Toys/Lexi with the system and it's incredible. I'll take low rpm torque over high rpm horsepower for street use any day. What's interesting is that the all-out race prepped engines, like the GrandAm series IS300's with 2JZ-GE's, have VVT-i disabled in favor of straight grind long duration high lift cams.
#25
Registered User
Join Date: Sep 2004
Location: Southern Nevada
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
Something you guys might be missing is that the new 2.7L is designed for premium (91 octane) fuel only. Therefore, it's running a little higher compression. One of the reasons the 4.0L V-6 (premium) in the 4th gen 4Runners were turning out more ponies than the 4.7L V-8 (regular). If you design - or redesign - an engine from the ground up for high octane fuel, it's pretty easy to squeese out that kind of gain.
Thread
Thread Starter
Forum
Replies
Last Post
jacked_72
95.5-2004 Tacomas & 96-2002 4Runners
1
09-14-2015 03:31 PM