okay so i drive a 98 gsr with 169k. Still runs good, without any major problems. I jsut think its time for a rebuild. I would really like to build a b20vtec and use my gsr head and tranny. This car is going to be daily drivin also. What do you guys think? Im looking for at least 200whp. Planning using stock bottom end w/built head. Ive herd some good and bad things about b20vtec's so i figured id ask to see what you guys tought. And i have searched and ive read bambams thread on how to build a reliable lsvtec/b20vtec, but i was just looking for some feed back from some of you experienced guys out there. Just looking for opinions on b20vtec builds vs b18c1 builds. Leanning more towards the b20vtec side anyways, but id like to see what you guys have to say.

 

homie, your best bet is to search and gather up all the info you can. Becuz your question is kinda vague, so you will get vague anwsers. But i would pick the b20v.

 

B20 what? The b20b or b20z. And what head gsr b16a or b17a.

 

not sure on witch block yet thats why im posting here trying to get opinions from you guys, and it will be a p72 gsr head.


Modified by 401tuner at 2:24 PM 10/9/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The_Undertaker &raquo;</TD></TR><TR><TD CLASS="quote">B20 what? The b20b or b20z. And what head gsr b16a or b17a.</TD></TR></TABLE>

if hes gonna build the bottom it doesnt matter b20b or b20z, and all vtec heads are same except for the type r as far as the port work etc

 

well i want this motor to last me, its going to be my DD, so thats why im debating.

 

To last as meaning as a daily driver right? Because you want all motor so i am assuming you want to max hp stressing the motor out. The walls on b20 are so thin excessive compression may lead to cracked a cylinder.

 

First off, gsr aint p28, its a p72. And using a b20 block w/ a gsr head will give you gobs of torque, and if you follow bambam's build guide it will easily rev as high as a build gsr motor.

 

You're giving engine building advice? Did you ever figure out what installing a b16 crank and rods into a gsr block will do?

 

A GSR head is a lot more different than a type r or b16 head, quench area is different and can dramatically affect CR, Intake manifold bolt patterns are different, not to mention different flow properties.

 

i got skunk2 proseries intake manifold same as ITR.

 

dude, you already have your GSR motor there just rebuild it with ITR and after market stuffs, forget about b20 it will be more expensive since you will have to buy the b20 block and maybe internals too just rebuild the GSR IMO..

 

what does that have to do w/ this thread?

 

i would rebuild the gsr but b20 makes more power and im looking for a b20 block now. So would you suggest using the b20 crank and getting some b20 rods, or what would you guys suggest

 

If you use the b20 block you'll have more torque than a gsr with and ls crank and rods because of the bore size. If you can afford the b20 block go for it, and use the b20/ls crank and rods and the pistons of your choice to achieve the CR your aiming for. But with that gsr head, make sure you check P2H clearance for sure, and P2V and V2V if you decide on some big cams.

 

Im running a gsr block with a b20/ls crank and rods, with ITR pistons 81.5mm bore, it feels alot better than before the crank and rod swap, but its not even close to my friend b20vtec with a b20 block and gsr head, and we got pretty much the same brand of bolt ons, clutch, etc. That extra displacement goes a long way. Good luck,

 

yea i was looking into the blox b's, ive herd some great stuff about them and they make some good power for the price. My buddy has them in his b16 and loves them. And piston wise what do you guys suggest?

 

I run blox b's in my weekend car, love em. The pistons, what's your CR goal?

 

which ever 1 u decide on make sure to put money aside for a good tune. the gsr with some hi cr pistons and some cams would be just fine i would think. save some money and get a good header too if u dont already have 1.

 

Can you be any more general in your suggestion?

 

skunk stage 2"s
hondata
11:5:1
hytec-smsp-rmf

SORRY.

 

ALSO SKUNK IM
skunt tb
cam gears too.

 

right on, name dropping is what these guys are looking for, but what pistons do you think will achieve 11.5:1 CR with a B20 block and GSR head?

 

i suggested he keep the gsr and not get a b20.

 

at the moment im using a JDM ITR header, and i was thiking about some p30 pistons maybe?