Other Engine Conversions - non V-8 Discussion of non-rotary engines, exc V-8's, in a car originally powered by a Rotary Engine.

WTF? FC with SR?

Thread Tools
 
Search this Thread
 
Old Jun 21, 2003 | 12:37 AM
  #1  
RexRyder's Avatar
Thread Starter
Rotary Freak
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Dec 2001
Posts: 2,965
Likes: 6
From: Tucson
WTF? FC with SR?

http://www.importfanatix.com/html/ma...pics_1_10.html

I actually asked the person who did this why? he said that he went thru 6 13bt engines. He also tol me that he lapped the rotors/housings. I think that has something to do with it since he also said a used jspec engine lasted longer than any of the engines with the lapped rotors/housings. or maybe he's just a dumass. eh i dunno.
Reply
Old Jun 21, 2003 | 12:49 AM
  #2  
RXciting's Avatar
GrapefruitRacing?
Tenured Member 05 Years
 
Joined: Apr 2003
Posts: 2,155
Likes: 0
From: PartSource
what a waste of an engine bay.. he probably wasn't smart enough to maintain his 13BT properly

i'm guessing he lapped the side housings since i'd fins it odd lapping the rotor housings.. that being said lappy side housings off of i think it's 84's up but i know it's all 2nd gens is pretty bad since they're treaded with a substance to make them wear alot less and cause less friction.. i read after they're lapped the treatment is gone and they wouldn't last more then 40K miles on a stock engine b4 needing a rebuild

-Frank
Reply
Old Jun 21, 2003 | 01:00 AM
  #3  
Roy James's Avatar
My cars louder than yours
Tenured Member 15 Years
 
Joined: Oct 2001
Posts: 1,969
Likes: 0
From: Augusta, GA
****.. who cares, that cars probably nicer and faster than anything id ever be able to afford. He's obviously got some money and brains or he wouldnt be able to do the swap. I personally have gone through more 13B engines than ive heard of any one go through piston engines. Hell.. if given the choice, id probably rather have an SR motor in my car over a 13BT.
Reply
Old Jun 21, 2003 | 01:09 AM
  #4  
Rotary Freak
Tenured Member 05 Years
 
Joined: Apr 2002
Posts: 1,739
Likes: 0
From: Boulder, CO
that guys on the forum. he is (I think) initialdFC, or something like that.

putting a 4 cylinder in an FC would totally screw everything up. the eight distribuition not only would move farther forward, but the center of gravity would be higher up as well. you can see how high that engine sits in the bay. he had to cut out part of the underside of the hood. in a different picture, you can see the red top of the SR right behind teh hood scoop.

this car may be fast, but it would be faster with a 13BT. at least handleing wise, anyway.

IMHO, if you don't want a rotary engine, then why buy a car with one in it?
Reply
Old Jun 21, 2003 | 01:25 AM
  #5  
RexRyder's Avatar
Thread Starter
Rotary Freak
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Dec 2001
Posts: 2,965
Likes: 6
From: Tucson
UR right on RXciting. I remember reading somewhere that the housings have some type of protective coating on them. but neway I'd take a 13b with low compression over a SR20det with a t88 anyday.
Reply
Old Jun 21, 2003 | 07:29 AM
  #6  
Rotary Dawg's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Mar 2002
Posts: 299
Likes: 0
From: Los Angeles!!!! Lovely.
I saw that car at the D1 Driver Search thing over in Irwindale 2 weekends ago. The thing is fast, no doubt about it, but what a waste...what a waste.

The SR sits so mich higher than the 13BT - so high that it won't clear an N/A hood. If you peek through the scoop you can actually see the red top sticking up.

Now I am no physicist or anything, but with the engine now so much higher on the car I am sure the centre of gravity is definitely worse off than with a 13 BT. Why anyone would do this is beyond me.

Rotary engines, if taken care of properly (NOT babying), can outlast piston engines easily. One famous example for this is the 787b R26B that won the Le Mans back in 1991. When they tore down the winning car's engine Mazda found that it could've ran for at least another 24 hours under Le Mans load before it might need a rebuild. Most piston engines are lucky if they last 24 hours in that race.

From what I know most rotary engine failures are not due to some sort of inherent weakness of the engine itself, but more about the cooling system that supports it. A piston engine will fail just as often as a rotary if its cooling system is not up to the task.

Last edited by Rotary Dawg; Jun 21, 2003 at 07:45 AM.
Reply
Old Jun 21, 2003 | 12:56 PM
  #7  
neevosh's Avatar
The Dude Abides
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 601
Likes: 0
From: san jose, ca
Who cares what engine he put in his car. He wasn't happy with his rotaries performance, so he swapped an SR20DET into it. It's his car, and he's the one that has to drive it. If he's happy with the way it performs, he'll keep the engine. If not he'll try something different. Don't knock it unless you've tried it. I congratulate him on having the skills to put it all together.
Reply
Old Jun 21, 2003 | 01:14 PM
  #8  
Fingers's Avatar
Rotary Freak
Tenured Member 10 Years
 
Joined: Aug 2001
Posts: 2,788
Likes: 0
From: Ottawa, Ontario
I think its a sweet conversion, and props to the guy that did it. SR20DET's are amazing engines, built like a brick, and will take any punishment you throw at them. I don't like the body style of 88-93 240's, but i love FC's. So that car has my favourite engine in my favourite shell. My second favourite engine is of course 13BT, but alas, not as bulletproof, and slightly finnicky!

PROPS TO THE GUY THAT DID THE CONVERSION. That takes ALOT of know-how.
Reply
Old Jun 21, 2003 | 01:14 PM
  #9  
darkwaveboi's Avatar
Need donor car in Fairfax
Tenured Member 05 Years
 
Joined: Nov 2001
Posts: 1,759
Likes: 0
From: Northern Virginia
why didnt he just buy an s13 and swap a SR20 into it? same weight distrobution, same size car...easier fitment..
Reply
Old Jun 21, 2003 | 01:19 PM
  #10  
BDoty311's Avatar
88 AE
Tenured Member 15 Years
 
Joined: Mar 2002
Posts: 2,865
Likes: 0
From: N/A
Thats a pretty pointless swap if you ask me. An FC and a 240SX are pretty much on the same platform as far as the body goes, so why would you put an SR20DET in an FC, when it bolts up to a 240SX? I dont get it.
Reply
Old Jun 21, 2003 | 03:13 PM
  #11  
Liquid Anarchy's Avatar
We come with the Hardcore
Tenured Member 10 Years
iTrader: (2)
 
Joined: Nov 2001
Posts: 2,456
Likes: 0
From: Springfield, MO
I'd still take it, and for those who don't like it, can't appreciate the work that went into it, think it's a "waste", or any other crap... you're probably not car people.... or a n00b
Reply
Old Jun 21, 2003 | 03:42 PM
  #12  
1SxyRXy's Avatar
my fc broke
Tenured Member 20 Years
 
Joined: Feb 2003
Posts: 2,231
Likes: 0
From: rohnert park,CA/ bay area
isnt that guy on the forum. his name is initiald fc.

Last edited by 1SxyRXy; Jun 21, 2003 at 03:44 PM.
Reply
Old Jun 21, 2003 | 03:56 PM
  #13  
Erik's Avatar
Best of both worlds
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 1,423
Likes: 0
From: NJ
Originally posted by BDoty311
why would you put an SR20DET in an FC, when it bolts up to a 240SX? I dont get it.

jeeez...welcome to last month guys

IntialdFC is a good guy and has been on the forum for many years. I'm sure many of you guys have pics of his car from back in the day and don't even know it, lol.
Reply
Old Jun 21, 2003 | 04:00 PM
  #14  
1SxyRXy's Avatar
my fc broke
Tenured Member 20 Years
 
Joined: Feb 2003
Posts: 2,231
Likes: 0
From: rohnert park,CA/ bay area
when did he switch to SR could of swore he had a 13B in it last i checked
Reply
Old Jun 21, 2003 | 06:05 PM
  #15  
Full Member
Tenured Member 05 Years
 
Joined: Feb 2003
Posts: 57
Likes: 0
From: Plano, TX
Maybe he just wants to be unique by putting a SR20det in there. ppl put v8's into RX-7's, how is this much different than that?
Reply
Old Jun 21, 2003 | 06:44 PM
  #16  
Icemark's Avatar
Former Moderator. RIP Icemark.
 
Joined: Apr 2001
Posts: 25,896
Likes: 24
From: Rohnert Park CA
off to other engines
Reply
Old Jun 21, 2003 | 07:01 PM
  #17  
cdk 4219's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Apr 2001
Posts: 185
Likes: 0
From: Dublin, Oh, USA
Usually swaps are the outcome of a need to either make the car more powerful, or more reliable, or both. Money comes into play when dealing with this as well. Rotary engines making high HP levels usually arent very reliable, and are definately very expensive to maintain and modify, as opposed to other types of powerplants. Melt a piston on an SR, replace the piston. Crush an apex seal, replace the whole motor, you dont get too many chances on a rotary at these power levels. Reliability is difficult to come by when making good HP, but the rotary is much less forgiving. I think you guys should put a 13b in a nissan for good times.
Reply
Old Jun 21, 2003 | 07:56 PM
  #18  
240Z TwinTurbo's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Dec 2002
Posts: 58
Likes: 0
From: Tallahassee, FL
the SR is a rock solid motor if tuned properly. We are making 397@wheels at 22psi and 93octane. Car ran 11.24@127mph. As far as weight distribution, the SR(engine/trans) is quite a bit lighter so a rear bias would occur. The car as it sits w/out driver and 5gal of gas was 2635lbs. It is not to say the 13b is not good, but to each their own. I am sure you saw the post below but here is a link.
http://www.eng.fsu.edu/~jthagard/upgrade/
Reply
Old Jun 21, 2003 | 08:16 PM
  #19  
600HP CLUB's Avatar
Senior Member
Tenured Member 20 Years
 
Joined: Jan 2002
Posts: 725
Likes: 14
From: Northern California
SR20 my nuts..a guyi know put in a Sr20det engine his 240sx, intake, downpipe, exhaust. ran a 14.9 best. that's a rx-7 stock!. but it's not bad, i'm not against it, like i'm not against v8s in rx-7s, more engines for me!
Reply
Old Jun 21, 2003 | 08:37 PM
  #20  
Rotary Dawg's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Mar 2002
Posts: 299
Likes: 0
From: Los Angeles!!!! Lovely.
Yeah, props to the guy who did the conversion, but IMHO I just think it's wrong to put a piston engine into a rotary car. My comment earlier was not meant to be an attack on the guy - as I've said, there's just something wrong about a piston engine in a rotary car...
Reply
Old Jun 21, 2003 | 11:19 PM
  #21  
240Z TwinTurbo's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Dec 2002
Posts: 58
Likes: 0
From: Tallahassee, FL
Originally posted by 600HP CLUB
SR20 my nuts..a guyi know put in a Sr20det engine his 240sx, intake, downpipe, exhaust. ran a 14.9 best. that's a rx-7 stock!. but it's not bad, i'm not against it, like i'm not against v8s in rx-7s, more engines for me!
Well, when the longblock(block/heads/headgasket) were stock the car went 11.16@126mph with 22psi and a 50shot. The motor has since seen forged rods/pistons, headgasket and HKS cams. The car will eventually be dialed in with 25psi and 100shot and should see some 135-138mph traps. 14.9 is not that great, but it is all how hard you push it and do you know what you are doing!
Reply
Old Jun 22, 2003 | 12:26 AM
  #22  
converted's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Sep 2002
Posts: 86
Likes: 0
From: hawaii
the owner of that car is initialdfc, he is on this forum. I agree that it would have been easier to swap it into a 240, but maybe he liked the body of the fc, and he believed the sr was more durable. his opinion, his car gotta respect him for pulling it off
Reply
Old Jul 2, 2003 | 06:47 PM
  #23  
InitialD FC's Avatar
Senior Member
Tenured Member 10 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 501
Likes: 0
From: Maryland
God damn lotta love and hate in here....

few things...
i have run like 12 different setups on my 13bs, im not new to the rotary thing... t04's, t72, t76, t66, semi pp rew motor...

another... the car isnt built for speed or max hp or anything anymore, i always here alot of, 13bs can make more power, or they are lighter or whatever, i weighed my car in at 2600lbs 2 weeks ago with a 150lb cage in it, (dont have a tig welder for chromoly)

i didnt buy a s13 and swap it in, because they drift 100 times easier than fc's, anyone and their mom can hop in a 240 and chill at full lock. rx7s have much more snap and grip for higher speed slides which i like.

i mounted the motor far back enough where i ditched my heater and it is less than 1/4" to the firewall, about 6-8" farther back than in 240s.

and ohh yeah... if i was building this car for you guys and not me... than maybe i would not have put pistons in it... but it drifts about 40x better than before, more engine braking, more low end response, and the wicked gas mileage is nice too.

basically i took a under-rated drift chassis, and made it better.

Last edited by InitialD FC; Jul 2, 2003 at 06:50 PM.
Reply
Old Jul 9, 2003 | 03:41 AM
  #24  
MaTT_FoULk's Avatar
earning these was better
Tenured Member 05 Years
 
Joined: Mar 2002
Posts: 580
Likes: 0
From: Richardson TX
It drizifts better guys shut up about the pistons.

Seriously, why swap one small turbo engine for another? I would put a V8 in an RX-7 before swapping anything else in their.
Reply
Old Jul 9, 2003 | 09:27 AM
  #25  
onepointone's Avatar
i say what i want
Tenured Member 15 Years
 
Joined: Aug 2002
Posts: 1,866
Likes: 0
From: richmond, va
i got to see it in person this past sunday at hyperfest. i have to say it was a badass car, and you could tell it was built for purpose. the front end was all f'ed up from hitting ****. he was one of the better drifters out there. seeing it coming around the corner sideways, and when he passed i couuld see the red top peeking through the t2 hood scoop. it was badass.
Reply



All times are GMT -5. The time now is 09:31 AM.