This is my first time building an all motor engine, so I would like some opinions and suggestions on my setup.

-Stock Bottom-end
-Kaizenspeed Balance Shaft Removal & Manual Tensioner
-Ported Head
-Supertech Springs & Retainers
-Skunk2 Pro1s
-Ported Lower P13 Intake
-QSD H2B Kit
-GSR Transmission w/ mFactory LSD

Unsure about the following:
-I would like to do the upper intake maninfold like "nah2b", coming up above the engine, but I am unsure of what throttle body size?
-Stock injectors, rdx, or bigger?
-Arp Head Studs necessary?
-Header?
-Maybe a small jet wet direct port nitrous system?

I'll post some pictures of the car and parts later.

 

we have a F2B all motor car made 275hp and ran 7.1 in the 1/8th thats all we got in SD
and thats with the small motor
stock bottom end with RSX pistons
Custom IM
we have 2 sets of custom 15.1 arias pistons that should be going in soon and also a new cylinder head thats flowing 330. The header is a bisi knock off we have a 90mm tb
here is a pic
LMK if you got any more questions

 

Your best bet for power and to be competitive I would recommend the below upgrades.

F23 Crank and Rods, K20 pistons, 12-1 compression, 87 bore

 

Nice. We have an f20b Longblock here that we're gonna do the same thing with.

 

Not trying to get into the bottom end yet.

 

yup unless you wanna buy our extra set of 15-1 arias pistons !

 

I run an f20b and in stock displacement its doable but its hard to get the short track down.. i think it can be competitive at higher displacement levels. Im at around 1900lbs

 

talk to randy about TB size since it is his intake.

You have not posted any goals so its a bit hard to give opinions.

 

the setup you have is perfect for turbo. The smaller stroke from the 88mm crank doesn't make the f20b a great candidate for a allmotor built. A h22/h23 would be more suited for a allmotor build. Nitrous would help the f20b down low.

 

Just curious if the head is flowing 330cfm why are you only making 275hp. unless the head has been ported to where the air velocity has been effected?. Also id get rid of that mass produced header and find one that really works for what your trying to do.

 

I would like to get as much out of it as possible with a stock bottom end.

I am trying to keep it simple and stay all motor. I will try the f20 out for this season or until it last then I will upgrade to somethingbigger.

 

What size throttle body should I get? Is there any such thing as too big?

 

i meant we also have a head that flows 330 it is currently not on the car neither is the bigger bottom end