Justin_sane
Active VIP Member
I posted this question in the polaris turbo section but i have not gotten much action there (could be because I asked it in my build thread), so I figured I would post it here.
I have some Wiseco turbo pistons on the way for my Assault, (part number SK1393). They are listed as 8.5:1 compression (seems pretty low for a sled motor, but I bought them anyways).
I also wanted to pick up a set of power addiction racing turbo heads as found in the following link;
POLARIS CFI 800 HEAD, Power Addiction Racing
I was wondering which head I should run with. I emailed PAR and havent gotten a response for almost a week. I was thinking that the turbo heads might lower the compression too much, giving a poor idle or whatever. It should allow higher boost, but im not sure just how much boost a sled motor can take without problems anyways.
anyone have any recommendations for the head selection? I was thinking I should almost run with the lowest compression NA head...?
EDIT forgot the details: I will be running 100LL avgas, looking for 10-12 psi, running Air to water IC, I have the Ekey as a backup as well, looking for 250+ hp
I have some Wiseco turbo pistons on the way for my Assault, (part number SK1393). They are listed as 8.5:1 compression (seems pretty low for a sled motor, but I bought them anyways).
I also wanted to pick up a set of power addiction racing turbo heads as found in the following link;
POLARIS CFI 800 HEAD, Power Addiction Racing
I was wondering which head I should run with. I emailed PAR and havent gotten a response for almost a week. I was thinking that the turbo heads might lower the compression too much, giving a poor idle or whatever. It should allow higher boost, but im not sure just how much boost a sled motor can take without problems anyways.
anyone have any recommendations for the head selection? I was thinking I should almost run with the lowest compression NA head...?
EDIT forgot the details: I will be running 100LL avgas, looking for 10-12 psi, running Air to water IC, I have the Ekey as a backup as well, looking for 250+ hp
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