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Thanks for the complimentsboostedsupratt said:That is a nice setup you have there Scott. Nice clean engine by too. I was just curious......when do those twins come online. Is the lag really as bad as everyone says?
I'd also be interested in such information.2835rls said:SCOTT. I have before and after dyno sheets of your same set up 264 cams HKS twins. except i have alot of extrude hone done. but i can tell you 264 cams did not gave me any more lag I think its because of the extrude hone. I like your last post about not building your car for anyone but your self. it seems people who cant afford the big twnis do nothing but bad mouth them. i dont nkow if i can post the dyno sheets but if you like e mail privately i'll fax them to you..
I don't have a fax...could you attach an e-mail with the sheet? I could get a # from a friend. Thanks for the offer. I'm actually ordering some on Monday.2835rls said:SCOTT. I have before and after dyno sheets of your same set up 264 cams HKS twins. except i have alot of extrude hone done. but i can tell you 264 cams did not gave me any more lag I think its because of the extrude hone. I like your last post about not building your car for anyone but your self. it seems people who cant afford the big twnis do nothing but bad mouth them. i dont nkow if i can post the dyno sheets but if you like e mail privately i'll fax them to you..
I'm running 680/720s(Dave M. as well) That's what Guilly is running. I don't know his A/Fs or duty cycles though. What they are capable of is still up in the air.Walser said:Hmmm, interesting stuff. I have been considering the next path to take, and it's good to see you have had good experience with extrudehoning.
I believe the lag with cams is less than formerly believed. I think I lost 200-300 rpms with my 272 cams. No so bad, considering.
I just recently put on .87 A/Rs, and picked up 15 rwhp. (whoopty do) Didn't notice any seat of the pants difference. Scott, what size injectors are you using now?
Is it hard to get the 850s to idle smooth? I might need to that when I have the cams and springs put in.houstonT said:Scott, springs/retainers are a safety issue. They allow you to rev higher without worrying so much. Now, as for dave and guilly's injectors, that explains why they made so much HP. I would bet ALOT of $ that they went way lean. My 720 cc injectors maxed out (at 42 psi static) at around 690 rwhp. I bet their a/f is around 13-13.5:1.
Peter