IcyDC5

Currently, I have a 99-00 Si with a B16A2 engine. As of now, I'm wondering weither I should get a GSR block and bore it out to 84 mm and resleeve it or get a CRV block and put that on my B16A head. I just need more displacement. With either setup, I would probably be using either Toda A's or ITR cams. I'm looking for lots of midrange power and that feeling where you get shoved back into your seat once you punch it (gotta love it).

My goals for this car would be to hit 200+ whp, daily driven, and reliable. I don't want something to happen to my engine while I'm on my way somewhere.

The only reason why I'm a bit skeptical about getting a B20, is the reliability issue. I need this engine to last a long time, and I'm just worried that with all the other modifications needed to make the B20 work, that something will go wrong... Anyone know of any good shops in Houston who can build reliable CRV/VTECs?

What do you think ?


Any help would be greatly appreciated. Thanks in advance.

IcyDC5

So, 12:1 compression would be too high and dangerous? And would this (11.5:1 compression) be reliable? Reliability is one of my biggest concerns as this car will be daily driven.

Lastly, can this resleeved motor take high RPMs (4000-8000) for a long period of time without much long term damage?


Thanks a lot.


[Modified by NeoBuRST2K1, 10:08 PM 12/1/2001]

rainforest

12.1.1 no octane booster timing at 13degrees 93 octane. well i do have a spoon cap/ thermostat/msd 6al/blaster3. so that helps detonation.

bojangs

if there's any problem with downtime when rebuilding your stock block just buy another b16 block to build.. the block itself is much cheaper than a gsr or crv (yeah, try about 1/4 the cost!).. of course the resleeve is gonna cost you but if you do the math, a resleeved b16 costs right around the same as a stock crv block.. and now you have superior sleeves and the awesome rod/stroke ratio of the b16! just some fat for you to chew on..

Spade

You do know that the B16 and the B18 use the same block right!?!

FSTASNTZ

The B16 block has a shorter deck than that of the B18 series engines...


Jason

FSTASNTZ

12.0-12.5:1 compression is fine on 93 octane with tuning. Remember, it is in the tuning...


Jason

Bert

Sleeving seems like a lot of work to get a b16 up to 1736cc (according to my calcs at a 84.5mm bore.) Does anyone make an off the shelf 85mm piston? I think it would be worth the extra $300 or so for a GSR block to have 1.8l right away and go to 1956cc if you sleeve and bore it to 84.5mm.

Bert

True... I just think 1796cc (stock b18c block) for under 1k would be a better buy than sleeving and getting new internals for the b16, and you'd end up with more displacement. On the other hand, I think sleeving a b18c block to 84.5mm is a good idea since you have the oil squirters and crank girdle missing from the b20 block and if turbo is a future possibility, add forged internals and be able to run big boost safely. I know Endyne lists off the shelf forged 54.5mm pistons and have 85 and 86mm NA pistons listed as "pending."


[Modified by Bert, 7:45 AM 12/5/2001]

PrettyRicky

I was really considering dong the b20 swap..but so many people say that i should just stick with the b18c and maybe bore it to 84.5mm ad resleeve the it with darton or eagle...the thing i wanna know is that if i did bore the b18 to maybe 84.5 would thi engine be reliable and able to rev to say 9500 rpm???? also would this give the same tq as a b20 or even close to that??

miller

stick with the gsr

Project SSAP1

i am in the same situation..i wanna either get the b20 or bore out the 18c to 84mm..but here is what i am hearing....the b20 is a 2L block but it is not that reliable because honda didnt make that engine to rev high...the b20 is for a mini van that doesnt even c speeds past 90..lol...so reving that b20 is gonna suck in the long run...unless u have a ot of doe to make that motor get power beyond 7200...now boring out the GSR to say 84mm is gonna allow u 2 rev high like a normal b18c but i heard that u can get more power buy boring out a LS 18b block to 84mm...this is because then u will a have a block with more displacement and higher compression and i think that ucan still rev this motor..in all cases is neccessary to sleeve the blocks to keep it in good condition and reliable....so my move would b to give JEFF a call at import builders and ask about getting a LS b18b block and fully building it to a 84mm sleeved block.....correct me if i am wrong or let me know about my findings...hope that can help a lil

trix are for kids

is there a site where it tells you the basics about resleeving, bore and what not? like how can you tell the difference between 84.5mm and stuff? or basic interals guide like internals for dummies or something like that. thanx (internal newbie here )

Project SSAP1

try http://www.theoldone.com http://www.crvtec.com http://www.importreview.com

trix are for kids

thanx

Short_Shifter

Cool ! every on says resleeve the B18C to 84-85mm !
I agree !

Here is my question :-

Can a LS or CRV B20 crank fit in a B18C block ?
If it can , then resleeve the B18C and fit in the LS / CRV B20 crank !
I think that the deck heights are slightly different therefore custom rods would have to be used ( shorter , longer what ever the cast may be ) !

If it can fit then , you would have the stroke of LS/VTEC or CRV/VTEC . and by doing this your Torque would be increased TREMENDOUSLY . Which would be very very nice !

I don't know if it is possible so DON'T FLAME ME !!!!!!!!!!

comments are highly appreciated



[Modified by Short_Shifter, 6:36 PM 1/29/2002]

Project SSAP1

[QUOTE]Cool ! every on says resleeve the B18C to 84-85mm !
I agree !

Here is my question :-

Can a LS or CRV B20 crank fit in a B18C block ?
If it can , then resleeve the B18C and fit in the LS / CRV B20 crank !
I think that the deck heights are slightly different therefore custom rods would have to be used ( shorter , longer what ever the cast may be ) !

If it can fit then , you would have the stroke of LS/VTEC or CRV/VTEC . and by doing this your Torque would be increased TREMENDOUSLY . Which would be very very nice !

I don't know if it is possible so DON'T FLAME ME !!!!!!!!!!

comments are highly appreciated


thats the thing...the reason y people say that it is better 2 bore the b18c is because the b18b and the b20b/z both have suck *** cranks.... the b18b & b20b/z have greater displacements which gives it more tq but then this is also why both blocks cant rev high...if u look honda made both blocks dont rev past 7200 or so..and the b16 and b18 blocks rev to8k and past...they r imo safer to rev higher...but all in all reving high is gonna ruin a motor...always has and always will....so basically u can build upn motor to rev high..ts just gnna cost a hell of a lot of doe but to b on the safer side the bored b18c will imo b more reliable


basically its like this
more tq less top end
less tq more top end

unless u have mony tree in your backyard..lol..then u can do whateva the hell u want...just most cars here r for street driving...and who wants a car that is in the shop moe than they drive it..

happy reving!!


[Modified by B18cKiller, 4:07 AM 1/30/2002]

Short_Shifter

Sweet thanks !

Ihave just been educated

Short_Shifter

Yeah thanks , but I have seen one thing wrong in your post !

Stock for Stock a B20/VTEC will have more torque than a resleeved B18C !

But thanks again !

topspeed86

how do you figure that it won't be a 2.0 with 85mm what is the bore size on a B20 84.5 check your facts

To many smart people on honda tech

topspeed86

If your worried about high revs sleeve a GSR block with a LS crank and rev as high as you want with the good stoke of the crank or take a b20 and bore it to 84.5 you can still rev high it depends on what cam you run

Project SSAP1

with a bored out b18c to 85mm im not sure if it wll b exactly...i think real close maybe like 1.9...im not sure though..n e way...if u did nore to 85mm its gonna suck *** to try to find pitons and o-rings to match that size...oh yeah the reason y most people bore out the b18c is because the LS crank sux ***!!!!!! its not safe to rev high on any engine....let alone rev an ls or crv to 9500 rpm..those engine where made for cars that dont even go past 100mph..lol...i really wanna say that engine building sucks *** for all that money one puts in and for the tiny bit of results...oh well..its still fun...amd if i had a money tree i wouldnt care about n e thing and just get the b20 fully built with a customized crank and rods!!! that would b the BEST way to go!!


[Modified by B18cKiller, 10:49 PM 1/30/2002]