differences in engines

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May 14, 2002 | 04:02 PM

#11

Rotarydragon

Senior Member

Joined: Feb 2002

Posts: 1,381

From: Close enough to annoy you.

Quote:

Originally Posted by 13BAce' date='May 14 2002,16:55

[quote name='Rotaryman88' date='May 14 2002,17:44']Jspecs save you time and sometimes money, not in my case though

Also, according to Mazda, the Japanese Rx7s had 207HP in 1991...but I believe it had to do w/ emissions or something....

Come on, you can get 7 HP just buy getting a cone intake. :sarcasm:[/quote]

Cone intake? Heck I added 10hp alone with my Rotary Engine sticker and some yellow electrical tape!

:baaaa:

May 14, 2002 | 06:20 PM

#12

13BAce

Senior Member

Joined: Nov 2001

Posts: 7,316

From: Bay Area, CA

Quote:

Originally Posted by Rotarydragon' date='May 14 2002,18:02

[quote name='13BAce' date='May 14 2002,16:55'][quote name='Rotaryman88' date='May 14 2002,17:44']Jspecs save you time and sometimes money, not in my case though

Also, according to Mazda, the Japanese Rx7s had 207HP in 1991...but I believe it had to do w/ emissions or something....

Come on, you can get 7 HP just buy getting a cone intake. :sarcasm:[/quote]

Cone intake? Heck I added 10hp alone with my Rotary Engine sticker and some yellow electrical tape!

:baaaa:[/quote]

No comment. :rollwink:

May 14, 2002 | 11:27 PM

#13

LilFatCrazyWop

Member

Joined: Apr 2002

Posts: 40

Jspec engines are better because in Japan they dont have emishon tests like u americans. so get rid of the cats and **** and all the little emishons thingys and bang! more HP

May 14, 2002 | 11:39 PM

#14

vosko

Super Moderator

Joined: Jul 2001

Posts: 17,839

From: NJ

Quote:

Originally Posted by LilFatCrazyWop' date='May 14 2002,01:27

Jspec engines are better because in Japan they dont have emishon tests like u americans. so get rid of the cats and **** and all the little emishons thingys and bang! more HP

it would be great if that post made any sense. the jspec doesn't have SMOG but they do have a cat still. a jspec won't pass US EMISSIONS testing. if do get a full exhaust you will need a FCD and upgraded fuel pump to have enough fuel....

May 18, 2002 | 12:00 AM

#15

The Blue Bomber

Senior Member

Joined: Feb 2002

Posts: 509

what about a cosmo?

do they bolt in in place of a 13b

i think they are the same size

i wonder what you would need for the conversion?

manifold ecu fuel pump etc...

May 18, 2002 | 12:24 AM

#16

vosko

Super Moderator

Joined: Jul 2001

Posts: 17,839

From: NJ

if you want a cosmo you need custom k2rd motor mounts then need custom ems, etc

May 20, 2002 | 01:32 PM

#17

The Blue Bomber

Senior Member

Joined: Feb 2002

Posts: 509

Quote:

Originally Posted by vosko' date='May 17 2002, 11:24 PM

if you want a cosmo you need custom k2rd motor mounts then need custom ems, etc

looks like i am going the route of a ported 13b then.

oh well i only wanted about 350hp at the wheels and i bet i could get that with some work and a bunch of money B)

May 20, 2002 | 10:22 PM

#18

turborotor

Senior Member

Joined: Nov 2001

Posts: 1,622

From: LA, USA

Quote:

Originally Posted by 13BAce' date='May 14 2002, 04:49 AM

You'll have to switch the front cover and oil metering pump to the 87-88 style because on 89-91 cars the pump is computer controlled. On 87's it's mechanically controlled. You'll also need to use the 87-88 sensors.

You can run premix and not worry about changing the front cover.

I recently broke my 88 engine and had to buy a 89+ jpec because of the cost, availability and ease of swap.

So far I'm very happy with my s5 engine, it feel much stronger and smoother than my s4 engine. I didn't bother swapping out the turbo with the upgrade one i had. The turbo it came with had no shaft play. I didn't bother changing the front cover to go mechanical OMP. there was no oil leaks coming frm the front cover area so I better not play with it because is not broken and run premix.

C