Page:
Home > Help Needed / General Tech Chat > 20773 standard

Scudy23

User Avatar

236 Posts
Member #: 10087
Senior Member

Very wet south wales

15th Nov, 2012 at 04:48:57pm

Arite guys

Just a quick question would there be much difference performance wise between the standard 20773 and the +020 ?
Reason i ask is with regards to the thread i posted a bit further down in this forum, i bought conrods to accept the floating +020 pistons i got but theyve turned up today and have the standard 20773s with them.

Would i see a big gain from the +020 pistons or save my coin from the rebore sell the +020s and put it towards work on the head ?

As always thanks in advance.
Scud

eden7842

User Avatar

1755 Posts
Member #: 8852
Post Whore

leicestershire

15th Nov, 2012 at 05:02:06pm

C/r would change slightly so that would affect things

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

John

User Avatar

10023 Posts
Member #: 1456
Mongo

Barnsley, South Flatcapshire

15th Nov, 2012 at 05:08:00pm

Have you got rings for the standard pistons? are you bore's good enough to be re-used?

If something is worth doing, it's worth doing half of.

Scudy23

User Avatar

236 Posts
Member #: 10087
Senior Member

Very wet south wales

15th Nov, 2012 at 05:20:27pm

Id replace the rings on them john cos they dont look healthy, as for the reboring guy at the machine shop didnt say they werent good enough.

Didnt think of the c/r eden tbh, good point.

Scudy23

User Avatar

236 Posts
Member #: 10087
Senior Member

Very wet south wales

15th Nov, 2012 at 05:22:12pm

I see your point now john, if my bores are not good id have to have them re-bored anyway.

wil_h

User Avatar

9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

15th Nov, 2012 at 05:22:57pm

I wouldn't worry about the CR change, it'll be small.

If the bores are ok and the std pistons are ok, then no reason not to. ask the machinist to check the bores.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


Scudy23

User Avatar

236 Posts
Member #: 10087
Senior Member

Very wet south wales

15th Nov, 2012 at 07:01:52pm

There wouldnt be a vast difference regarding performance i take it wil ?

Craigie-B

User Avatar

1492 Posts
Member #: 9468
Post Whore

Wootton Bassett

15th Nov, 2012 at 07:46:26pm

Your only gaining 18cc's across all 4 cylinders, I cant imagine youll notice a difference

On 10th Mar, 2012 theoneeyedlizard said:
Hypothetically speaking, where would you stick your nozzle?


On 22nd Jun, 2012 apbellamy said:
my wife doesn't know what.head is never mind compression ratio.
Home > Help Needed / General Tech Chat > 20773 standard
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password:
Page: