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| Home > 998cc > Pistons to use with 12g295 head Hypatec? | |||||||
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15 Posts Member #: 9973 Member |
11th Mar, 2013 at 03:17:25pm
I have a standard 12g295 head i am going to run a gt1549 turbo.
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 293 Posts Member #: 10010 Senior Member Northants |
11th Mar, 2013 at 07:10:26pm
It depends on the chamber size, and what compression ratio and boost etc you are going to run. |
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
12th Mar, 2013 at 07:38:12am
assuming a chamber size of 28cc, then the flat tops give a little over 9:1 CR. The 6cc dish takes this down to 8.5.
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. |
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15 Posts Member #: 9973 Member |
12th Mar, 2013 at 12:38:44pm
Thanks for the reply, I am aiming for around 130 hp with the potential for more. So do you think the dished pistons will be a better choice in the long run? |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
12th Mar, 2013 at 12:55:26pm
for 130 bhp you'll need 12 to 15 psi. So I'd play it safe with the lowe CR and dished pistons. 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. |
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15 Posts Member #: 9973 Member |
13th Mar, 2013 at 01:04:12pm
Are there any other pistons that will do the same job that are avaliable over here, and has anyone used the dished Hypatec i have read that they are pretty good? |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
13th Mar, 2013 at 01:37:19pm
I use the Aus Mini dished hypertecs, they are fine. Not a perfect turbo piston, but good enough.
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. |
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15 Posts Member #: 9973 Member |
21st Mar, 2013 at 10:08:25pm
I am now around owner of some hypertec pistons. |
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