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View Full Version : Whats the Best B-series All motor build for my DD



allmotoronly
08-29-2007, 07:54 PM
I am thinking about rebuilding my engine this fall. It's a B18C1 with 88k miles, but like all B-series VTEC engines, it burns a little oil. I figure while I am going to have it in the shop for the timing belt service soon, I might as well get a few other things done. This car is my DD so I like the fact that it gets 25+mpg. I would like to keep it at atleast 20mph or so. I am thinking about getting a set of oem pistons (PR3 or P73 maybe, and .25 over), new oem rods (with ARP rod bolts), ACL bearings, getting the rotating assembly balanced, and having all the tolerences checked and whatever else may come from that (I.E. line hone, etc) For the top end, I am thinking about two different things.
1) Get a set of skunk2 pro 1 cams and a set of aftermarket valve springs and chromoly retainers, or...
2) sell the stock P72 head (which is actually in excellent condition) and buy a P73 head and IM, Buy a set of skunk2 Pro1's, and maybe a set of valvesprings.

I also plan on MAYBE converting to a OBDI ECU and having it dyno tuned to make sure I am getting the most power out of that setup.

Basically I would like to convert the B18C1 into a B18C5, without buying a whole engine. Like I said, this is my DD, so I want a reliable setup with about 20% more power than I have now. I am looking for about 170-180whp. I also don't want to spend an arm and a let. The transmission in the car is smooth and has no grinds or whining input shaft.

All B-series guys tell me what you think the best setup would be (best being most reliable and best bang for the buck)

reps given for any useful info :goodjob:

edit: I would also like to know the compression ratio of these setups:
1) GSR block/head with PR3 pistons
2) GSR block/head with P73 A0 pistons (USDM ITR)
3) GSR block/head with P73 00 pistons (JDM ITR)
4) GSR block P73 head with P73 A0 pistons (I guess it would 10.6:1)
5) GSR block P73 head with P73 00 pistons (same as jdm itr 11.0:1 i guess)
5) GSR block PR3 (or P30) head with P72, PR3, or P73 pistons

I know its a long list, but I have searched around and I am having a hard time finding C/R for the different pistons usinga P72 head, since most data is from a PR3 or P30 B16A head.

EDIT: for those who don't know what kind of car I have, its a Milan Red 97 GSR (88k original miles)

allmotoronly
08-29-2007, 09:35 PM
http://i17.photobucket.com/albums/b65/jdmludesir/1.gif?t=1188440513 I need some info!!!!

SixSquared
08-30-2007, 12:13 AM
your best bet?

yank out the GSR and build an H22.

:P

Ludester
08-30-2007, 09:54 AM
I like option five.


free bump for joo my friend.

Sushi
08-30-2007, 10:30 AM
your best bet?

yank out the GSR and build an H22.

:P

x2 If you want good MPG then get an H22 Complete Changeover and swap that into your car. Which you didnt mention what it is. It will give you plenty of torque and will give you more MPG because it takes less power to pull your chassis whatever it might be. No replacement for displacement.

RBS
08-30-2007, 10:35 AM
best bet eh? :tongue1: . . .





a fully built gsr sleeved and bored to 86 mm and ultra uber high compression pistons with some dopeTastic cams :crazy:

allmotoronly
08-30-2007, 10:43 AM
x2 If you want good MPG then get an H22 Complete Changeover and swap that into your car. Which you didnt mention what it is. It will give you plenty of torque and will give you more MPG because it takes less power to pull your chassis whatever it might be. No replacement for displacement.

I don't want to go with a H22A, I have already had a car with a built H22A, so I want to try something new. I had a JDM H22A SiR S-Spec, Euro R IM, cams, and a jun spec ecu. It was cool and all, but expensive.

As I said, this is my DD, so I dont want to swap engines, unless it is another B-series engine. I like My A/C and P/S. My fiance drives it sometimes, and she likes the A/C and P/S as well.

oh yea and the car is a GSR, duh.

xlilvi3tx
08-30-2007, 11:10 AM
fuck gsr. b20 vtec sleeved the fuck up! jk. i say u just forget building the gsr. just buy a type r motor lol

allmotoronly
08-30-2007, 12:00 PM
fuck gsr. b20 vtec sleeved the fuck up! jk. i say u just forget building the gsr. just buy a type r motor lol

where can I buy a NEW type R engine that isn't going to cost more than It will to rebuild my engine to type R specs?

noridetoolow
08-30-2007, 12:21 PM
DB1_77 just got a CRX with a built B20....and he LOVES it! I must say I am pretty impressed myself. All said and done, your still in a B series.

allmotoronly
08-30-2007, 12:45 PM
well I would like to keep the original matching number block and transmission.

SixSquared
08-30-2007, 12:52 PM
^^why? Collector value?

allmotoronly
08-30-2007, 01:21 PM
^^why? Collector value?

no, just personal preference. That way If I ever sell it, I can say it has the original drivetrain and hasnt been swapped 37 times.

Mr.Big
08-30-2007, 02:02 PM
u looking for 170whp get a b16 head,CTR cams,CTR piston,4-1 header and a Intake Manifold u should be around 170whp

allmotoronly
08-30-2007, 02:23 PM
u looking for 170whp get a b16 head,CTR cams,CTR piston,4-1 header and a Intake Manifold u should be around 170whp

thanks for the info. anyone know where I can get a set of CTR cams for cheap? I would prefer new parts. I cant find them for less than $600.

aemkitfox
08-30-2007, 09:52 PM
thanks for the info. anyone know where I can get a set of CTR cams for cheap? I would prefer new parts. I cant find them for less than $600.
CTR, nope. ITR yes. I had this same itch with my B16. I bought a B18C1 block, since I work at a Ed Voyles I got employee prices on USDM ITR new parts, I bought ITR pistons for $33 a peice, and I kept the B16 head. This made 162whp. I didnt get the ITR cams cuz i was out of money but that would have put me over 170whp i bet. So if thats all you're looking to make I'd say using OE parts is the way to go to keep it dependable.

aemkitfox
08-30-2007, 09:54 PM
Oh and for new OE ITR cams they are like $350 per cam, so those prices you're finding are accurate.

xlilvi3tx
08-31-2007, 04:06 AM
lol do u really have to have to get a new motor dude? i say just get one that under 80k. iono mayb u can find one at nat autos.

speedminded
08-31-2007, 07:08 AM
edit: I would also like to know the compression ratio of these setups:
1) GSR block/head with PR3 pistons
2) GSR block/head with P73 A0 pistons (USDM ITR)
3) GSR block/head with P73 00 pistons (JDM ITR)
4) GSR block P73 head with P73 A0 pistons (I guess it would 10.6:1)
5) GSR block P73 head with P73 00 pistons (same as jdm itr 11.0:1 i guess)
5) GSR block PR3 (or P30) head with P72, PR3, or P73 pistons

I know its a long list, but I have searched around and I am having a hard time finding C/R for the different pistons usinga P72 head, since most data is from a PR3 or P30 B16A headhttp://www.c-speedracing.com/howto/compcalc/compcalc.php

- OR -

Refer to Mike's stickied post in the All Motor forum ;) http://www.importatlanta.com/forums/showthread.php?t=33958

JDMjoe
08-31-2007, 07:25 AM
Here is a link by Mr.kiDD for b series motor build
http://www.importatlanta.com/forums/showthread.php?t=79418

allmotoronly
08-31-2007, 03:50 PM
lol do u really have to have to get a new motor dude? i say just get one that under 80k. iono mayb u can find one at nat autos.

lol why would I do that? The motor I have now only has 88k.... I want either to rebuild this engine, or buy a new one. Its just personal preference. Theres no point in replacing my 88k mile B18C1 with a 80k mile B18C1....

allmotoronly
08-31-2007, 04:24 PM
So upon doing more research, I am starting to come up with a plan.
1) B18C1- rebuild using JDM ITR P73-00 pistons, (which should yiels about 11.3:1 C/R), Oem ITR rods with ARP rod bolts, Keep my P72 head and get a set of CTR or ITR cams, some upgraded valve springs and retainers, A Skunk2 type R style intake manifold, larger throttle body, a JDM 4-1 header with 2.5" collector, high flow cat, RS*R Exmag or fujitsubo legalis catback, and a P73 ECU with a good tune (Crome pro maybe). Hopefully that will get me in the 170-180whp range.

what do you guys think about that route?

Ludester
08-31-2007, 08:14 PM
Aim for teh CTR cams. atleast try harder to get those vs. the ITR ones lol

TheGrillMan
08-31-2007, 08:26 PM
No replacement for displacement.


WORD

allmotoronly
08-31-2007, 08:27 PM
Aim for teh CTR cams. atleast try harder to get those vs. the ITR ones lol
I am. They are not that much different though. same lift as ITR, but the CTR intake cam has 3 degrees more duration than the ITR. Exhaust cams are the same.

Ludester
08-31-2007, 08:30 PM
I am. They are not that much different though. same lift as ITR, but the CTR intake cam has 3 degrees more duration than the ITR. Exhaust cams are the same.

I thought there was a greater difference than that. Then why the hell do they cost so much more than the itr's? it's doesn't make any sense to me. I'll keep an eye out for you to see If I can find them for less than the $700 price that's on them.

I guess the itr's will do fine then...

allmotoronly
08-31-2007, 08:33 PM
cool thanks. I tried to rep you, but i got the "you must spread...." bullshit

Ludester
08-31-2007, 09:49 PM
lol you got me homie... but I repped you back yet. I must spread reputation around blah blah blah :blah: :blah:

r_Senik
09-01-2007, 11:45 PM
poor man FTW!!!