Thread: Starting my engine build but have some questions.

I have searched a bit but am unsure about the following.

sr20ve head and block

have a brian stroker kit for an SR20DET laying around. full 91mm kit with crank, rods, pistons, rings and bearings. Are there any issues using this in ve block? what will the comp ratio be using the 91mm stroker kit with 9:1 pistons meant for the DET? I plan to run an FP black turbo that I also have laying around if I can get my hands on one of the twin scroll manifolds made by javierb14

also as far as the head goes I plan to just do a mild porting job, a custom intake plenum and let her roll. I revved the stock valve train to 9k constantly with N1 cams even for long track sessions with zero problems so I see no need for spring upgrades running mild stock cams or possibly turbo cams in the future.

no go on those pistons...

Can you explain about the pistons please?? but the crank drops right in right? This will be the first +displacement motor i have ever built. I have done a few stock spec rebuilds.

the pistons will only work if the have valve reliefs cut in them. specifically for the ve head. if they dont, pistons will hit the valves. the crank should drop right in.

The pistons will work, I wouldn't use them with n1 cams reving to 9k

In my opinion ditch the BC crank...

I agree with respect. If you have a stroker not much need the rev the motor to 9k anyways. The n1 cams will reduce torque and move the powerband way up high. Id run stock,2litere cams move the powerband lower and strain everything less. With those pistons if designed for a de would yeild 9:9:1-10 comp ratio or very close.

Im using stock cams and only will rev to about 8 max with this setup. I say this in the opening post. I was just stating that im not going to waste time or money on springs/retainers when i have never had a problem with the stock units even with high revs on N1 cams. I want to go stroker for the torque benefits and It should help spool the turbo in theory. this is being built for a TT/ hillclimb car that for the amount tire, downforce and suspension setup I plan to run will need about 500hp to match power to the chassis.

Ah ok. Sounds like a solid build. Good luck with buold, should put out some stout numbers.

Springs and Retainers FTW, atleast springs. PLEASE do yourself that favor if youre that far into it. makes a huge difference with boosted VE's, stock valve springs barely held boost to redline with stock cams...

There is no point in putting springs and retainers on an SR20VE 86mm x 91mm engine.

Revving past even 7k will be lackluster at best with the crazy stroked engine you will create. I think it would be a kick-ass engine for the street (to be honest). Most folks around here would rather go the opposite way and increase bore size vs stroke but I love me a good torquer engine for a DD or a red light runner car all day long. I would not rev past 7500 RPM (N1's are a waste of cam in the engine)

I will say this, that is just what I would do, personally. I have no experience with an SR20VE just so everyone who reads this knows you are more than welcome to take it with a grain of salt.