That is a lot of work to gain 5hp.... are you sure you don't just want a turbo??? lol
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Yah but look at torque. more money than brains and its an experiment in perfection. Besides I offers awesome torque curve. I will most likely boost after. Short block will be perfect and bullet proof so ready for anything in future.That is a lot of work to gain 5hp.... are you sure you don't just want a turbo??? lol
Yah but look at torque. more money than brains and its an experiment in perfection. Besides I offers awesome torque curve. I will most likely boost after. Short block will be perfect and bullet proof so ready for anything in future.
do you think 10:1 static can handle some boost on pump gas? Calcs say it can.
what boost are you shooting for and what are you expecting on pump gas?Yep it is a great CR for boost. My pistons are 10:1's
Let me know if you want any simulations on my software. Cost a bundle but I don't mind sharing as I have a couple engines in mind after this.I will run 93, E85 and likely E99. Hoping for 18psi, 25psi and 35psi(or whatever I can max the turbo out at) respectively.
I have not worked out my actual compression, it will be a touch lower than 10:1, because I am going to do some work in the combustion chamber. I have the cams, but will need new ones.... long story but they were snapped in shipping and I didn't file a claim in time.
I will probably not do an engine dyno just chassis.
Whose cams did you buy, and, if you want simulation, what spec?I will run 93, E85 and likely E99. Hoping for 18psi, 25psi and 35psi(or whatever I can max the turbo out at) respectively.
I have not worked out my actual compression, it will be a touch lower than 10:1, because I am going to do some work in the combustion chamber. I have the cams, but will need new ones.... long story but they were snapped in shipping and I didn't file a claim in time.
I will probably not do an engine dyno just chassis.
can you run the sims with some of the basic off the shelf cams and bump the CR up to match the off the shelf pistons?
specs for pistons are 8.5 10 and 11.5
cams that would be considered ok for stock ECU (i think) are
INT/EXH - Dur @ .050” Lift: 218°/222° RR: 1/1 Gross Lift: .401”/.401” LSA: 112°
INT/EXH - Dur @ .050” Lift: 219°/227° RR: 1/1 Gross Lift: .397”/.415” LSA: 112°
INT/EXH - Dur @ .050” Lift: 222°/230° RR: 1/1 Gross Lift: .401”/.425” LSA: 112°
Haven't posted in a while.
Mostly discussing with suppliers. Decided I needed to design cam first so I can get custom pistons flycut correctly, and can't order crank until I have bob weights of pistons etc etc.
Have sent stock cam to Crower Cams who will design a stroker cam for this build, they will also measure stock specs against my measurements and I will post. I need a custom cam as this big of stroke will have very high piston speed before and after TDC and BDC which will affect a regular cam.
Crower will likely provide cams, 4.5" (114,3mm) crank ($4,000), and Ti rods. JE pistons has agreed with my calcs and says they can provide pistons to suit application, likely PCD will be about 1.3" (33.02mm).
I have sent block out to get line bored and decked, once I find out final deck I can order reciprocating parts. Have had some discussion with UAE guys, they are running 114 stroke but sleeve down and get standard 4.5 l. I will bore up and get 4.566L.
Also weighed crank at 82 lbs, and block at 170 lbs.