turbogrill Posted September 14, 2018 Share Posted September 14, 2018 Hi, Why is no one doing a 3.0L using L28 rods? Would the bore/stroke ratio be bad? This would need customs pistons with same spec as the flat top but with a 88mm bore. Quote Link to comment Share on other sites More sharing options...
Derek Posted September 15, 2018 Share Posted September 15, 2018 88mm bore L28 is 2.883L according to the OZDAT calculator. You would have to take it to 90MM to get to 3.0 and at that point the walls would probably be a little on the thin side. Quote Link to comment Share on other sites More sharing options...
didier Posted September 15, 2018 Share Posted September 15, 2018 my F54 is bored to 90 mm , stock rods but much work on them, no problem for a NA engine , megasquirt injection and timing Quote Link to comment Share on other sites More sharing options...
Derek Posted September 15, 2018 Share Posted September 15, 2018 35 minutes ago, didier said: my F54 is bored to 90 mm , stock rods but much work on them, no problem for a NA engine , megasquirt injection and timing Did you sonic test It? Hopefully working on my stroker soon and trying to make some decisions. I was going to go for 89mm. Quote Link to comment Share on other sites More sharing options...
turbogrill Posted September 15, 2018 Author Share Posted September 15, 2018 (edited) Besides head gasket being a little pricey and a sonic test is recommended , is there any other issues/risks/costs? Obviously custom pistons are needed. Edited September 15, 2018 by turbogrill Quote Link to comment Share on other sites More sharing options...
didier Posted September 16, 2018 Share Posted September 16, 2018 (edited) On 9/15/2018 at 11:55 PM, Derek said: Did you sonic test It? Hopefully working on my stroker soon and trying to make some decisions. I was going to go for 89mm. 89 mm with F54 would be rather safe , but not with P30 or other blocks my P30 from l26 was in the water at 89 mm , sleeves to come i did not sonic test my f54, i think for NA it's enough Edited September 16, 2018 by didier Quote Link to comment Share on other sites More sharing options...
didier Posted September 16, 2018 Share Posted September 16, 2018 On 9/15/2018 at 11:55 PM, Derek said: Did you sonic test It? Hopefully working on my stroker soon and trying to make some decisions. I was going to go for 89mm. 23 hours ago, turbogrill said: Besides head gasket being a little pricey and a sonic test is recommended , is there any other issues/risks/costs? Obviously custom pistons are needed. the cheaper is to build your own multi layer copper head gasket , what i did , removable and no leak if well done . custom pistons ? after market pistons exist , some times need over boring the rod at the pin Quote Link to comment Share on other sites More sharing options...
didier Posted September 16, 2018 Share Posted September 16, 2018 Quote Link to comment Share on other sites More sharing options...
Derek Posted September 17, 2018 Share Posted September 17, 2018 Wow that looks great. There is a lot going on in that engine bay. Quote Link to comment Share on other sites More sharing options...
jonbill Posted September 17, 2018 Share Posted September 17, 2018 My f54 is at 88.5 so 2915 with Kameari pistons and Maxspeedingrods l28 rods. I wish I'd been braver and gone 90. But it goes nicely so can't complain. Quote Link to comment Share on other sites More sharing options...
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