i remember some time ago hearing about this,

if you take the throttle body and injectors from a 2.5, and put them on a 2.7, it will increase the power of the 2.7.

i think it would work the other way around if anything , but this is what i heard........


does anyone know anything about this?


-Lance

 

I believe JDMCRX is the guy you may need to contact. I know there was a mention about it when I was treplacing my motor. Here's a link to that thread.

http://www.zukiworld.com/forum/index.php?topic=23530.0

bump, no reply from jdmcrx

Anyone else? 

Hey guys sorry for not replying im out east on a course.

The 2.7 Throtle body is bigger and less restrictive. I think i measured at 2-3mm bigger. Also does not have the mas air sensor in the throat. The 2.7 also has bigger injectors.

You want a good setup.

2.7 motor with a bored out TB and a 3" intake with the mass air plumbed to a air box other then stock. A 2.5" DP and a full manderal 2.5" exhaust with a resonator and a flow master muffler.

As i stated last year i will be building a turbo kit and a procharger sc kit for the gv when i get my house this summer.

I have long tube headers on my gv with alot of other mods but my biggest prob is not being able to do any timing adjustments and fuel.

Here is a quick vid of last summer. truck need a alignment and was leaning out up top.

Hey guys sorry for not replying im out east on a course.

The 2.7 Throtle body is bigger and less restrictive. I think i measured at 2-3mm bigger. Also does not have the mas air sensor in the throat. The 2.7 also has bigger injectors.

Now, waitaminute....  I haven't measured myself yet, but I was sure you have previously said the 2.5 had the bigger throttle body and injectors.  Tell me I didn't buy all these 2.5 bits for nothing.

Quote from: JDMCRX on June 19, 2009, 05:15:59 PM

Hey guys sorry for not replying im out east on a course.

The 2.7 Throtle body is bigger and less restrictive. I think i measured at 2-3mm bigger. Also does not have the mas air sensor in the throat. The 2.7 also has bigger injectors.

Now, waitaminute....  I haven't measured myself yet, but I was sure you have previously said the 2.5 had the bigger throttle body and injectors.  Tell me I didn't buy all these 2.5 bits for nothing.

thats what i remeber hearing as well lol

Never did i say the 2.5 had a bigger parts.I even made a post showing the sizes of the 2.7 parts.

What are your guys goals?

Never did i say the 2.5 had a bigger parts.I even made a post showing the sizes of the 2.7 parts.

Hmm.  Guess it was cj and zukipro.  You guys all look the same to me from here.

Examples:
http://www.zukiworld.com/forum/index.php?topic=11136.msg108683#msg108683

http://www.zukiworld.com/forum/index.php?topic=10803.msg110679#msg110679

http://www.zukiworld.com/forum/index.php?topic=18501.msg158286#msg158286

I think they messed up. there is no way they put 240cc in the h27 and the H25. I could be mistaken.

I will know more later this summer. I will be sending out a set of green top h25 and a set of white top h27 to RC.

Im looking at doing a powerdyne sc mounting system with a piggy back EFI system and going from there. I got 3 people interested.

It would be a passenger side mount powerdyne blower with your choice of a water to air or front mount.

And on another note. what year 2.5. the 2000 2.5 was speed density no mas air and the tb and intake end piece are different.

I think they messed up. there is no way they put 240cc in the h27 and the H25. I could be mistaken.

Those figures I quoted came from the Suzuki Factrory Service manuals.

I have also heard that the 2.5 had a larger throttle body but nobody could ever confirm the actual sizes.

There may be differences between the early and later models with the power-up mods, Would be nice to know for sure.

OK well im home in mid july ill re measure the the TB on the 2.7 and the 2.5. Now 2001 and up 2.5 have the mas air in the the tb. The 2.7 had a external tb.