NOPRO NC L3-VE 2.3L & L5-VE 2.5 Conversions

Postby **mx52nv** » Tue Aug 12, 2008 11:40 pm

This was talked about at the end of the "NC MPS officially canned" thread so here is the scanned article from Road&Ster magazine.

It was NOPRO that did it and it is in Japanese.
Looks like they had to shave something off the block to fit but its in there :mrgreen:

Imagine a 2.3 NC with forged internals and any of the GT28 turbos :shock:

Or a 2.3 NC with quad throttle bodies with 12.1 CR! :mrgreen:

OMG

I need to to go to the loo .....

Enjoy!

CoffeeBoss · Postby **CoffeeBoss** » Thu Aug 14, 2008 9:27 am

mx52nv wrote:Imagine ....
a 2.3 NC with quad throttle bodies with 12.1 CR!

Enjoy!

It's like your reading my mind

Great find - thanks for posting!!!

Postby **mx52nv** » Sat Mar 06, 2010 11:10 pm

Latest update & thread revival!

Some of you already know that NOPRO did a L3-VE 2.3 litre conversion two years ago.
Now they have gone one step further and put in the L5-VE 2.5 litre! :shock:

Here is the translated BLOG update courtesy of REV9 Autosport: http://www.rev9autosport.com/blog/results-are-in/

REV9 Autosport wrote:Results are in!
Monday, March 1, 2010 5:32:45 PM PST

Great news for NCEC owners, NOPRO has dyno tuned their latest modification (MZR 2.5L swap) and the results are in!

Results are:
224.6 PS (221 HP)
28.5 KGM (206 LB/FT)

I am really impressed by the power it's producing, very nice for someone looking for a naturally aspirated setup or just for some more displacement!

A little info on the L5-VE:
Wikipedia wrote:The 2.5L L5-VE is an updated, bored and stroked version of the L3-VE 2.3L. The 2.5L (2488 cc) L5 engine has an 89.0 mm (3.50 in) bore and a 100.0 mm (3.94 in) stroke, with a compression ratio of 9.7:1. The crankshaft is now forged-steel and dual-counterweighted just as the L3-VDT Mazdaspeed DISI 2.3L (Les' Note: same engine as in the Mazda 3/6 MPS & CX-7). To increase strength and durability of the bore, a new steel-molybdenum alloy is used for the cast-in cylinder liners. This offers greatly enhanced high-heat, high-pressure tolerance as well as reduced friction. The increased stroke of 100 mm, up from 94 mm of the L3, allows a higher final-drive ratio resulting in lower-RPM while cruising to increase fuel economy. It produces 170 bhp (127 kW; 172 PS) at 6000 rpm (168 bhp in PZEV trim) and 167 lb·ft (226 N·m) of torque at 4000 rpm (166 ft·lbf in PZEV trim).

Enjoy!

Les @ MX5 Shop

CoffeeBoss · Postby **CoffeeBoss** » Sun Mar 07, 2010 3:08 pm

Great update Les!

NOPRO really are the champions of the NC in Japan.

I have a contact over there who knows the workshop, and a few other articles in Road&Ster - will add into this thread when I get some time.