bluebird and avenier

viprdude · Apr 19th, 2004, 09:31 PM

what are the main differences between the u12 and u13 bluebird and the avenier? searched and found nothing. thank you for ur input in advance.

Chuck · Apr 19th, 2004, 10:14 PM

just different turbos

**chimmike** · Apr 19th, 2004, 10:17 PM

most avenirs are T25s, as are all bluebirds. i think the avenir is a slightly larger one? not sure, may be the same size

Chuck · Apr 19th, 2004, 10:39 PM

avenir is ball bearing.. BB isnt

viprdude · Apr 20th, 2004, 03:01 PM

thats just what i thought, the ave has a ball bearing and the bb doesnt. what about the intercoolers?

im asking some questions because im deciding on what motor to save for. all i know so far is that i want a sr20det to drop in my se-r. im thinkin about the gti-r motor also, bigger turbo, injectors, manifold. so give me ur input please everyone!

James · Apr 20th, 2004, 03:02 PM

well I know the BB had the top mount, not sure if its different on the Avenir.

Harris · Apr 20th, 2004, 03:40 PM

Clearing it up...

There are two kinds of BB motors available:

U12 - 8.5:1 C/R, TMIC, T25, red VC

U13 - 8.5:1 C/R, FMIC, T25, red VC

The Avenir:

8.5:1 C/R, FMIC, some had a ball-bearing T25, some didn't, silver VC.

James · Apr 20th, 2004, 04:22 PM

OIC, thanks for the info!

viprdude · Apr 20th, 2004, 04:52 PM

thanks harris. any info on the gti-r useful that i havent said? i know it has a 8.3:1 comp ratio and a little more HP than the rest with a larger top mount intercooler. what are some people's recommendations? u12, u13, avenier, or gti-r? im thinkin gti-r because i dont want to do much more work the the motor once i get it. just basic things, intake, header, exhaust. thanks.

**chimmike** · Apr 20th, 2004, 06:27 PM

GTiR has a T28, larger oil passages, lower compression, quad throttle bodies, ummmm, a bunch of other stuff, oil squirters, etc

viprdude · Apr 20th, 2004, 07:06 PM

ive narrowed it down to the avenier engine and the gti-r engine.

ser_smokes_alot · Apr 20th, 2004, 11:09 PM

not all avenirs have the bb turbo. the w11 does, which has a silver valve cover. the w10 without it has a black valve cover.

mark

Chuck · Apr 21st, 2004, 05:31 AM

get the gtir.. dont bullshit. lol

Harris · Apr 21st, 2004, 04:41 PM

I'd go with a U13 or W10/W11, simply because they are most likely to have quite low miles and are the closest thing to our SR20DEs. So if in case something breaks, a dealership should have just about what you need (except for maybe the pistons, oil squirters, and the turbo

).

The GTi-R, with an 8.3:1 C/R, huge TMIC and T28 is an awesome motor, no doubt about that. However, due to its unique head and valvetrain design, getting replacement parts is a little tough. That's why I would rather have you go for the BB/Avenir motor. This is just my 2 cents.

CarloSR · Apr 21st, 2004, 05:37 PM

Quote:

Originally Posted by ser_smokes_alot

not all avenirs have the bb turbo. the w11 does, which has a silver valve cover. the w10 without it has a black valve cover.

mark

Right.

Black VC W11 T25.
Most silver VC W11 Ball Bearing T25.

Carlos.