I have a 96 teg with a b20b and gsr tranny and wanting a little more. I was looking into boosting it or b20vtec but the more i read the more i hear the cylinder walls are to thin to boost or a vtec head will raise compression to much..... and i am not wanting to build the block. Would gettin my ecu tuned help, bigger injectors, pump . Would something of that nature be a waste of time and money on a stock motor. Also if i were to boost it is it 100 percent ok to slap a good quality turbo kit on it with a good tune and stay under 10psi and still have a reliable dd without sleeving the block or pistons, piston rings, rod bolts, headstuds.....i have yet to get a honest direct answer about a boosted b20

 

And there i go again bringing up boost in the n/a section sorry new user here

 

You really need to learn to search. Hell, just google "turbo b20" and PLENTY of information will come up. If you are still to lazy to do that, just remember this:

B20 sleeve limits - 300whp

 

I have searched non stop for a week and not yet has one person said it is ok to boost a b20 and have a reliable car but any way read the first part of my thread thats what i want to no

 

Without sleeving the block and pistons ext......

 

Yes under 10 psi should work fine on stock sleeves. Power at 10 psi will be similar to type r power, but a little more power with a bump in torque. for the price of turbo kit on b series, it may make more sense to boost it unless you can get na cams and pistons with headwork for really cheap. I had a gsr with S2 pro 2 cams and honda pr3 pistons with headwork and lightened crank for about twice what some turbo kits are for w/ same power.

 

If you dont sleeve block you will still need forged pistons and good bearings and rod bolts on boosted motor.

I asked my tuner these same questions. Im telling you what he told me. hope it helps!

 

U were a great amount of help unlike some people thanx

 

ok, ummm,,, no.

go ahead and boost the b20. its not the thickness of the walls its the design. they are a 1 piece iron insert instead of each cylinder being individual like other b series. this makes them less reliable at higher rpm and stresses since they are not as able to torsion.

go ahead and boost the b20. keep it low in power, maybe mid 200s which is probably 10ish psi from any mid size t3t4 or similar turbo. dont get too small of a turbo so its always boosting when u are just cruising up hills you dont need that much additional stress always on that motor.

you will need a good tune and an aftermarket clutch. thats about it

 

Ok thanx are there any decent turbo kits for a reasonable price or would i be better off finding a good quality used setup

 

Ive seen stock b20 sleeves make serious power without failure. My buddy made 453whp with a bone stock low comp b20 bottom end no block guard with his own built vtec head, type r cams, c16,61mm turbo 19psi of boost tuned by Vspec1. And Vspec1's forged piston and rod, stock sleeve, ge block guard b20vtec made 696whp on e85(cant remember psi). So stock sleeves can handle power if built and tuned right.