What do you make of this compression??

Started by Mir, October 31, 2011, 10:19:37 AM

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Mir

October 31, 2011, 10:19:37 AM
Guys, I was helping a friend with his fd yesterday. Whilst we were working on his car, God knows what happened to us :D :D :D and we decided to compression test both of our FD\'s.
 
Check the link and tell me what you guys think of a compression-Good, Bad or the UGLY lollll;)
 
http://www.youtube.com/watch?v=Sw-og-hbjCc
 
I think this is my Fd\'s compression test but I am not sure as he sent me this video but never mentioned whose FD was it. So, if its good then its my Fd, but if its not, then its his Fd\'s compression test.:rollin
 
Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C

TRIND-FD

#1
October 31, 2011, 10:52:46 AM Last Edit: October 31, 2011, 10:54:29 AM by TRIND-FD
Are you going to the Guildford meet buddy.,
See you there if you are :)

Keith
V8 fd\'s rock :cool

Mir

#2
October 31, 2011, 10:56:35 AM
Quote from: TRIND-FD;796796Are you going to the Guildford meet buddy.,
See you there if you are :)
 
Keith

Yes Mate I am going, so see you there;)
 
Make sure you bring that thing ;);) with you. I will bring my mate along as well.
 
Cheers
Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C

TRIND-FD

#3
October 31, 2011, 10:58:27 AM
Quote from: Mir;796798Yes Mate I am going, so see you there;)
 
Make sure you bring that thing ;);) with you. I will bring my mate along as well.
 
Cheers
Mir

Will do mate. See you there.

Keith:)
V8 fd\'s rock :cool

antnicuk

#4
October 31, 2011, 09:45:28 PM
have i missed something? where are the numbers? you cant comp test by listening to it!
400 BHP - 650 KG\'s = 616 BHP Per Ton of Rotary Power

That\'s the way to do it! :Thumbsup!

Mir

#5
October 31, 2011, 11:49:45 PM
Quote from: antnicuk;796891have i missed something? where are the numbers? you cant comp test by listening to it!

Well at least you can listen to the continuity of the "Pus Pus" :Giggle:Giggle. I heard a specialist can assess the car\'s compression by simply "listening" to it and please dont tell me that its not true because one specialist told me that-BTW it was not Pip :Giggle:Giggle:Giggle:Giggle. So in your opinion, how does that compression sound?

Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C

antnicuk

#6
November 01, 2011, 11:02:16 AM
you can tell if it has compression on all chambers but that is very different to saying what the compression is like.  Its very dependent on lots of things like engine temp, battery and starter power, engine speed and if the engine has been stood for any time.
400 BHP - 650 KG\'s = 616 BHP Per Ton of Rotary Power

That\'s the way to do it! :Thumbsup!

HaywardRotary

#7
November 01, 2011, 12:36:24 PM
That sounds like one chamber only of a 13b to me. Can\'t say how good the compression is though.
What plugs were taken out?
We warranty our rebuilt engines for Detonation, track day\'s and RWYB and NOW for 30 months which is two and half years or 30,000 miles
We also build all types of race or road engines.
We build race and track cars too.
Any kind of porting undertaken.
Single turbo conversions.
S

Prof

#8
November 01, 2011, 12:41:15 PM
You can only tell if the pulses are even or not - certainly won\'t get a poor / passable / good / excellent compression out of just listening.
 
A proper tester is needed, and you\'ll want details of the conditions used for the test:
 
  • Battery Condition ?
  • Cranking speed ?
  • Throttle open ?
  • Only bottom plugs removed and tester in one of them ?
  • Engine warmed up before hand ?
  • Lubrication good ?
  • Cranked for long enough to stabilize cranking RPM ?
  • and finally - but somewhat less of an issue here in the UK - altitude where the test was performed ?
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex

Mir

#9
November 01, 2011, 12:41:51 PM
Carl 7420 were taken out and the car was driven hard before we did that test. Yes it was only one chamber i.e. compression test of one housing..
 
To me the compression "pus pus" was even but you guys would know better. :)
 
Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C

Mir

#10
November 01, 2011, 12:45:01 PM
Quote from: Prof;796935You can only tell if the pulses are even or not - certainly won\'t get a poor / passable / good / excellent compression out of just listening.
 
A proper tester is needed, and you\'ll want details of the conditions used for the test:

  • Battery Condition ?
  • Cranking speed ?
  • Throttle open ?
  • Only bottom plugs removed and tester in one of them ?
  • Engine warmed up before hand ?
  • Lubrication good ?
  • Cranked for long enough to stabilize cranking RPM ?
  • and finally - but somewhat less of an issue here in the UK - altitude where the test was performed ?

Great info Prof. :god
 
Much appreciate that..
 
Cheers
Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C

HaywardRotary

#11
November 01, 2011, 12:45:33 PM
It sound\'s even.Thats all i can tell.
We warranty our rebuilt engines for Detonation, track day\'s and RWYB and NOW for 30 months which is two and half years or 30,000 miles
We also build all types of race or road engines.
We build race and track cars too.
Any kind of porting undertaken.
Single turbo conversions.
S

Mir

#12
November 01, 2011, 12:47:17 PM
Quote from: HaywardRotary;796940It sound\'s even.Thats all i can tell.

Thanks Carl
 
Thats all I needed!!!:Ladys-man
 
Cheers
Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C

HaywardRotary

#13
November 01, 2011, 12:48:21 PM
Quote from: Mir;796941Thanks Carl
 
Thats all I needed!!!:Ladys-man
 
Cheers
Mir

Have you spoken to Pip yet?
We warranty our rebuilt engines for Detonation, track day\'s and RWYB and NOW for 30 months which is two and half years or 30,000 miles
We also build all types of race or road engines.
We build race and track cars too.
Any kind of porting undertaken.
Single turbo conversions.
S

Mir

#14
November 01, 2011, 12:51:04 PM
No not yet Carl. I have been busy lately due to work and stuff. But I will talk to him soon. May delay the project a bit as having domestic issues at the moment.
 
Cheers
Mir
I am building a Genuine Fastest Street Rotary!
No Cutting and No Removals
Love FDs. Currently own:
20b-Triple Rotor,Single turbo FD
13B- Two Rotor, 2000spec on Stock Twins-FD
13B- Two Rotor, Single Turbo FD
Quote:
Originally Posted by youngone 
It takes some money for engineering a proper 20b

My C
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