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B18B Road Race Motor.

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Old Mar 1, 2004 | 01:03 AM
  #1  
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Default B18B Road Race Motor.




Modified by fastone at 4:40 AM 3/24/2004
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Old Mar 1, 2004 | 03:52 AM
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Default Re: B18B Road Race Motor. (fastone)

Sounds like it would be a great Gr2 rally engine. Or maybe SPU in an SCCA region where the displacement break was 2 liters. What would it cost if I wanted you to duplicate it?

K
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Old Mar 1, 2004 | 06:21 AM
  #3  
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Default Re: B18B Road Race Motor. (Knestis)

awesome!
I've always been a fan of the LS motor... it just big ZC anyhow
The B18B is a potential for a sick setup too, even without vtec, I'm glad to see your pics, build, dyno numbers and even the hatchie looks good!
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Old Mar 1, 2004 | 06:34 AM
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Default Re: B18B Road Race Motor. (owen_the_soyboy)

wow this setup looks to be quite powerful and not as expensive as ls/vtec or gsr swap. i love b18b's!!!
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Old Mar 1, 2004 | 07:15 AM
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Default Re: B18B Road Race Motor. (cletus)

i've raced my EG hatch with EMRA and NASA for the last 3 years. with B18A/B nonvtec power.

very very reliable (except for one broken valve spring. it was a Crower. now i use Ferra!). great motor. it was dynoed and tuned at 178 whp and mid 130s torque. thats with a custom set of Webb cams. it has a good idle, and pulls strong from 2000 on up. really really comes on at about 4700 rpm.

i like the nonvtec, too!

they don't make the kind of power a wild vtec setup makes, but they aren't as expensive and don't seem as prone to blowing up, either.

have fun with that car!!!!!
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Old Mar 1, 2004 | 10:06 AM
  #6  
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Default Re: B18B Road Race Motor. (fastone)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastone &raquo;</TD></TR><TR><TD CLASS="quote">the motor made power to 7850 RPM power out put was 191 Hp with 160 ft lb torque.</TD></TR></TABLE>
Sounds like you just ended up with a "VTEC" engine anyway - only without the low-RPM lobes. Don't know of any B-series VTEC engine that can put out torque numbers like that, though . . .
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Old Mar 1, 2004 | 10:32 AM
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Default Re: B18B Road Race Motor. (fastone)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastone &raquo;</TD></TR><TR><TD CLASS="quote">7850 RPM power out put was 191 Hp with 160 ft lb torque. </TD></TR></TABLE>

Are those numbers to the wheels? If so awesome HP numbers.
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Old Mar 1, 2004 | 11:24 AM
  #8  
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Default Re: B18B Road Race Motor. (ITAIntegraLS)

You are my hero

Which cams did you use? the 405's?
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Old Mar 1, 2004 | 11:35 AM
  #9  
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Default Re: B18B Road Race Motor. (fastone)

wow.. nice setup

I'm just researching a b18b NA setup, that torque is amazing!
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Old Mar 1, 2004 | 12:06 PM
  #10  
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Default Re: B18B Road Race Motor. (BigC-ivic)

Nice numbers. How extensive was the headwork? I'm guessing there was alot done to the head, since non-vtec heads dont flow nearly as well as vtec heads.
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Old Mar 1, 2004 | 02:22 PM
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Default Re: B18B Road Race Motor. (743)

i'm just curious what the cost of the LS build-up vs a, say, GSR build-up would be?
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Old Mar 1, 2004 | 03:28 PM
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Default Re: B18B Road Race Motor. (Driven)

nice thats exactly what im plannin to do in near feature
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Old Mar 1, 2004 | 04:13 PM
  #13  
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Default Re: B18B Road Race Motor. (JCracer723)

How much difference does the ITR Pistons make in the B1 motor? (with bolt on's)
Ie. What would the compression be?
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Old Mar 1, 2004 | 05:51 PM
  #14  
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Default Re: B18B Road Race Motor. (fastone)

You have a dyno plot of your setup? Those numbers look impressive for the mods.
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Old Mar 1, 2004 | 06:59 PM
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Default Re: B18B Road Race Motor. (emissionsux)

yea dude, id love to see a dyno of that motor.
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Old Mar 1, 2004 | 07:03 PM
  #16  
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Default Re: B18B Road Race Motor. (tincam84)

With the mods it has, pulls out as much power as an LS-VTEC with hell of a lot more torque.
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Old Mar 1, 2004 | 07:12 PM
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Default Re: B18B Road Race Motor. (emissionsux)

Is the head milled to bump up the compression?
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Old Mar 2, 2004 | 12:25 AM
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Default Re: B18B Road Race Motor. (Todd Reid)




Modified by fastone at 4:41 AM 3/24/2004
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Old Mar 2, 2004 | 12:47 AM
  #19  
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Default Re: B18B Road Race Motor. (ITAIntegraLS)




Modified by fastone at 4:42 AM 3/24/2004
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Old Mar 2, 2004 | 05:11 AM
  #20  
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Default Re: B18B Road Race Motor. (fastone)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastone &raquo;</TD></TR><TR><TD CLASS="quote">The B18B motors have lots of potential, no one really give this motor a fear chance. Yes it have a bad rod ratio, so correct it and the motor will make even more power. </TD></TR></TABLE>

What means were you thinking of to correct it? Shorter stroke? Longer rod/shorter piston? Deck plate? Something else?
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Old Mar 2, 2004 | 07:47 AM
  #21  
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Default Re: B18B Road Race Motor. (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
Don't know of any B-series VTEC engine that can put out torque numbers like that, though . . .</TD></TR></TABLE>

I agree. Those torque numbers would make most VTEC owners jealous.

I bet you coud really feel the power exiting corners. I'd also like to know how you would improve the rod/stoke ratio on the LS motor.

Would this motor be legal for HC?
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Old Mar 2, 2004 | 08:08 AM
  #22  
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Default Re: B18B Road Race Motor. (fastone)

What rpm was that torque figure achieved at?

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Old Mar 2, 2004 | 08:20 AM
  #23  
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Default Re: B18B Road Race Motor. (fastone)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastone &raquo;</TD></TR><TR><TD CLASS="quote">Yes you are right; they are a pretty cheap motor to build up. I look at the head the B18A/B heads like a VTEC kilter. (Similar to when you install a toda vtec killer cam in a vtec head.) </TD></TR></TABLE> how true!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastone &raquo;</TD></TR><TR><TD CLASS="quote">The B18A/B ports are the same as a B16A or Type-R head and they will flow similar numbers </TD></TR></TABLE> very very interesting...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastone &raquo;</TD></TR><TR><TD CLASS="quote">If I were to build another one, I would have to correct the rod ratio and it will put out way more power. </TD></TR></TABLE> This makes me want to ask a question... would you consider building a motor made up of a GSR or ITR bottom end with a LS head? That way you get the beefier, girdled bottom end and RS ratio of the B18C block but you get to use the "inexpensive" LS head (even though you drop a load of money working the head and adding cams, etc)

I could allocate a lot more money into a B17 non-vtec build if I could sell my B17 head for good $$$ and pickup a LS head for dirt cheap... although that would be blasphemy for a B17 though
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Old Mar 2, 2004 | 08:21 AM
  #24  
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Default Re: B18B Road Race Motor. (El Pollo Diablo)

does a gsr crank and rods drop into an LS block? or does some machining need to be done?

s
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Old Mar 2, 2004 | 08:34 AM
  #25  
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Default Re: B18B Road Race Motor. (stevel)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stevel &raquo;</TD></TR><TR><TD CLASS="quote">does a gsr crank and rods drop into an LS block? or does some machining need to be done?

s</TD></TR></TABLE>

It drops in. I'm not sure why you'd do it though. Many people are going the other way, putting LS crank/rods in their B18C blocks. The weak point IMO isn't the R/S ratio... it's the questionable strength of the LS rods.

To the person that said the LS head flows *similar* to the vtec heads... do you have any flow sheets to back that up? I'm not saying you're wrong - but it goes against what I thought was true and I'd definitely like to see some proof if you have some.

Finally, I question how much money you're really saving by running a LS head. GSR heads can be bought for next to nothing. B16 for only slightly more.
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