engine parts order placed

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neilb
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Re: engine parts order placed

Post by neilb » Tue Jun 27, 2017 3:46 am

i have good news to share :)

i have now a full 2258cc engine kit from drd racing heads, crank, cam, pistons, rods, followers, manton pushrods (cut to length), drd's L6 heads, double valve springs, 44x38 valves, can't wait to get this thing running lol, only the 911 adjusters to get now. its being mocked up with the barrels on the block and heads on so i can do the sheet metal in the engine bay

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Piledriver
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Re: engine parts order placed

Post by Piledriver » Tue Jun 27, 2017 3:50 am

Do a dry mock up (no sealant) first to make sure you don't need to add deck spacers etc.
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neilb
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Re: engine parts order placed

Post by neilb » Fri Jun 30, 2017 4:26 am

i was going to just bolt the barrels on with the heads but no internals, just to do the engine bay sheet metal. on a side note what kind of CR sould i be aiming for 10:1 or close too?

wreck
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Re: engine parts order placed

Post by wreck » Fri Jun 30, 2017 6:58 am

I'd get the deck height (.050 would be optimal), barrels shimmed so you know how wide the engine will be before you start making any tin ware . DRD would be the ones to recommend the right CR . depends a lot on the cam specs . the longer the duration the higher the CR .
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neilb
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Re: engine parts order placed

Post by neilb » Sun Jul 02, 2017 3:41 am

thanks for the reply, confirmed by darren at drd, deck height .050 and CR at 9:1 anymore than that he says results in more heat and not much more power.

Bsherrard
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Re: engine parts order placed

Post by Bsherrard » Wed Jul 26, 2017 6:33 pm

Neil,
It looks like you ordered the parts from DRD in September. Did it take until June to get them? :shock:
I am considering one of their kits.
Brook

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Piledriver
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Re: engine parts order placed

Post by Piledriver » Thu Jul 27, 2017 3:42 am

neilb wrote:
Sun Jul 02, 2017 3:41 am
thanks for the reply, confirmed by darren at drd, deck height .050 and CR at 9:1 anymore than that he says results in more heat and not much more power.
Assuming Darren knew what cam you were running, that statement may work in your specific case.
It's total bullshit without context. or if meant as a general rule.

CR depends greatly on the cam, 9:1 with a 86b or C on 112 LC 9:1 would result in an ~untunable low compression POS.

9:1 is fine for a Web 86, depending on the chamber, the stock late WBX cam had essentially same timings as Web 86, euro version had 10.5:1 CR.
9:1 would probably be too much with a Web 73, or require premium fuel.

Google for "dynamic compression ratio" or try the fine calculator
https://www.uempistons.com/index.php?ma ... 525fa02016
I, for one, regularly embrace our new robot overlords, as I am the guy fixing the robots...

neilb
Posts: 22
Joined: Thu Nov 20, 2014 6:44 pm
Location: melbourne oz

Re: engine parts order placed

Post by neilb » Fri Aug 04, 2017 8:08 am

Bsherrard wrote:
Wed Jul 26, 2017 6:33 pm
Neil,
It looks like you ordered the parts from DRD in September. Did it take until June to get them? :shock:
I am considering one of their kits.
Brook

i did originally order my engine kit in sept, pm me

neilb
Posts: 22
Joined: Thu Nov 20, 2014 6:44 pm
Location: melbourne oz

Re: engine parts order placed

Post by neilb » Fri Aug 04, 2017 8:11 am

Piledriver wrote:
Thu Jul 27, 2017 3:42 am
neilb wrote:
Sun Jul 02, 2017 3:41 am
thanks for the reply, confirmed by darren at drd, deck height .050 and CR at 9:1 anymore than that he says results in more heat and not much more power.
Assuming Darren knew what cam you were running, that statement may work in your specific case.
It's total bullshit without context. or if meant as a general rule.

CR depends greatly on the cam, 9:1 with a 86b or C on 112 LC 9:1 would result in an ~untunable low compression POS.

9:1 is fine for a Web 86, depending on the chamber, the stock late WBX cam had essentially same timings as Web 86, euro version had 10.5:1 CR.
9:1 would probably be too much with a Web 73, or require premium fuel.

Google for "dynamic compression ratio" or try the fine calculator
https://www.uempistons.com/index.php?ma ... 525fa02016
the cam is one of darren's cams not a web, i do have the specs with it just not in reach lol

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