Go Back   Rotary Car Club > Tech Discussion > Piston Engine Conversion

Piston Engine Conversion Have you replaced your rotary with a V8 or any other type of piston engine? Tell us about it!

Reply
 
Thread Tools Display Modes
Old 05-24-2011, 11:15 AM   #16
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

Thanks for the compliments!

http://www.youtube.com/watch?v=SQySJPEP0Rs first start

http://www.youtube.com/watch?v=JmHcbYk6EQQ video now running!







I made a video driving it around but it won't load onto youtube for some reason-
it runs and drives great i now have the intercooler pipping hooked up unlike in the video. I still have a few pretty major things to do like find a new rear as the final drive ratio isn't very good for 65mph on the highway top speed was around 80 but the engine was screaming, I think 3.90 rear is a little high i need to find a rear closer to 3.3- It also has more vibration at idle than i would like the rubber mounts i used aren't quite thick enough so should be a simple fix. It still needs glow plugs too i've been cold starting with a hair dryer



yes i do realize my hood is crazy I was bored and had extra spray paint and masking tape, it got out of hand luckily this is just the screw around stage i'm going to build a cowl and paint it






__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl

Last edited by 12arotary; 05-24-2011 at 03:16 PM..
12arotary is offline   Reply With Quote
Old 05-28-2011, 12:36 AM   #17
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

http://www.youtube.com/watch?v=VSiqPDJIc4E On the road!
__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl
12arotary is offline   Reply With Quote
Old 05-28-2011, 01:20 AM   #18
Monkman33
Still Building my FD
 
Join Date: Jun 2009
Location: Pasco, WA
iTrader: (1)
Posts: 255
Rep Power: 16
Monkman33 is on a distinguished road
Default

wow. not going to lie, that's pretty cool. i like the fact that its all still mazda. :-)
Monkman33 is offline   Reply With Quote
Old 05-30-2011, 09:46 AM   #19
djmtsu
My minds tellin' me no...
 
djmtsu's Avatar
 
Join Date: Feb 2008
Location: Murfreesboro, TN
iTrader: (10)
Posts: 4,043
Rep Power: 21
djmtsu will become famous soon enough
Default

This is great. I want to see it shred the tires with the diesel torque!!

Someone needs a windshield and dash cap
__________________
1976 Mazda Cosmo RX-5
1976 Mazda Cosmo RX-5
2003 Toyota Tundra TRD
2015 Toyota 4Runner SR5
djmtsu is offline   Reply With Quote
Old 05-30-2011, 10:05 AM   #20
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

Quote:
Originally Posted by djmtsu View Post
This is great. I want to see it shred the tires with the diesel torque!!

Someone needs a windshield and dash cap

i'll fix the windshield when i have everything perfect so it doesn't get broken by the engine lift again haha
__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl
12arotary is offline   Reply With Quote
Old 06-01-2011, 05:02 PM   #21
Pele
The Newbie
 
Join Date: Jan 2010
iTrader: (0)
Posts: 8
Rep Power: 0
Pele is on a distinguished road
Default

Interesting...

How's the acceleration and how's the weight of the Perkins compare to the 12A?
Considering a swap into a 2nd gen.
Pele is offline   Reply With Quote
Old 06-01-2011, 07:00 PM   #22
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

Quote:
Originally Posted by Pele View Post
Interesting...

How's the acceleration and how's the weight of the Perkins compare to the 12A?
Considering a swap into a 2nd gen.
acceleration is pretty good surprisingly and pulls a lot harder than the 12a did at a much lower rpm, i'm going to swap rear's to a 3.27 from the 3.90 to make it better on the highway, which will slow it down too. it enters boost at around 2k so right where i want it- I never weighed the engine its self but if i had to guess id say it was a good 100lbs heavier including the turbo, the suspension stayed level and you really don't feel the extra weight I like it though it feels like it should have come in this car in the first place which is always a good thing

plus if i didn't mention before, first 100 miles clocked in at 47mpg
__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl
12arotary is offline   Reply With Quote
Old 06-02-2011, 07:43 AM   #23
Pele
The Newbie
 
Join Date: Jan 2010
iTrader: (0)
Posts: 8
Rep Power: 0
Pele is on a distinguished road
Default

^

Excellent... Looking at a later model Ranger's 2.3L Mitsubishi 4D55 engine coupled to a Turbo II transmission and running gear.
Pele is offline   Reply With Quote
Old 10-18-2011, 02:30 PM   #24
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

A little update-
After a small mishap with the turbo return line getting clogged and blowing out the rear oil seal I picked up a new s4 turbo, corrected the problem and have driven it a few hundred miles since. Unfortunately I just don't like it. Strait line acceleration is the only descent thing about it. The gear ratio is all wrong. Turning feels awful since the engine sits way to high and due to the stock oil pan it can't go any lower without major mods. Without a new injection pump, injectors, and a basic engine overhaul (head gasket, valve seat, new springs) I'm pretty much at the max boost and fuel i can run. The engine just isn't worth the time and effort because the gains won't be that much more and there are better options out there already. That's where i'm starting over selecting my engine.
I figure i'll sell the whole set up and go with something from the mercedes line
__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl
12arotary is offline   Reply With Quote
Old 10-19-2011, 08:54 PM   #25
jecr
The Newbie
 
jecr's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 22
Rep Power: 0
jecr is on a distinguished road
Default

Quote:
Originally Posted by 12arotary View Post
A little update-
After a small mishap with the turbo return line getting clogged and blowing out the rear oil seal I picked up a new s4 turbo, corrected the problem and have driven it a few hundred miles since. Unfortunately I just don't like it. Strait line acceleration is the only descent thing about it. The gear ratio is all wrong. Turning feels awful since the engine sits way to high and due to the stock oil pan it can't go any lower without major mods. Without a new injection pump, injectors, and a basic engine overhaul (head gasket, valve seat, new springs) I'm pretty much at the max boost and fuel i can run. The engine just isn't worth the time and effort because the gains won't be that much more and there are better options out there already. That's where i'm starting over selecting my engine.
I figure i'll sell the whole set up and go with something from the mercedes line
Is it the handling your not happy with? Keep in mind a diesel engine is going to be a whole lot heavier which probably make the car understeer quite a bit. I bet a Mercedes diesel will be heavier.
__________________
93 VR RX-7 (277rwhp @10psi)
86 Diesel (Isuzu) powered RX-7
jecr is offline   Reply With Quote
Old 10-26-2011, 01:28 PM   #26
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

Quote:
Originally Posted by jecr View Post
Is it the handling your not happy with? Keep in mind a diesel engine is going to be a whole lot heavier which probably make the car understeer quite a bit. I bet a Mercedes diesel will be heavier.
i expected sub-par handling but its way worse than it should be because the engine just sits to high. If i was to go dry sump it would drop 10 inches and because of the iron head it is extra top heavy.

probably just going back to rotary though and diesel swapping something else
__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl
12arotary is offline   Reply With Quote
Old 10-26-2011, 07:23 PM   #27
Raksj04
I have Ultra power in me.
 
Raksj04's Avatar
 
Join Date: Sep 2011
iTrader: (2)
Posts: 457
Rep Power: 14
Raksj04 is on a distinguished road
Default

I bet it would be better with a VW TDI engine.
Raksj04 is offline   Reply With Quote
Old 10-26-2011, 09:55 PM   #28
jecr
The Newbie
 
jecr's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 22
Rep Power: 0
jecr is on a distinguished road
Default

12arotary are you in the union, ky area.
__________________
93 VR RX-7 (277rwhp @10psi)
86 Diesel (Isuzu) powered RX-7
jecr is offline   Reply With Quote
Old 10-27-2011, 12:26 AM   #29
12arotary
tumor-syphilis-itis-osis
 
12arotary's Avatar
 
Join Date: Sep 2008
iTrader: (0)
Posts: 191
Rep Power: 17
12arotary is on a distinguished road
Default

tdi would make a great engine to swap but it's out of my price range.

jecr, north of dayton ohio
__________________
82 300d
82 Gsl
84 b2200 Diesel
88 gxl
12arotary is offline   Reply With Quote
Old 12-11-2011, 10:08 AM   #30
Whizbang
Respecognize!
 
Whizbang's Avatar
 
Join Date: Jul 2008
Location: Δx = ħ/2Δp
iTrader: (5)
Posts: 3,190
Rep Power: 20
Whizbang will become famous soon enough
Default

so any updates with this?
__________________
For current updates and event coverage check out
Follow on Twitter! @WhizbangRally
Whizbang Rally's Webpage | Facebook
Whizbang is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 06:23 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com
Ad Management by RedTyger