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Author Topic: SE-253 cam specs  (Read 31674 times)

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Fatboy

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Re: SE-253 cam specs
« Reply #15 on: April 28, 2005, 01:15:36 PM »

O'

Things that make me go.......hmmm. I guess from a number's standpoint I'd like get to 105hp & 110tq +/-

And do it for the least expense possible while maintaining reliability. Low end 1800-4500 rpm range is where I live most of the time.........

Thanks for your input!

DCFIREMANN

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Re: SE-253 cam specs
« Reply #16 on: April 28, 2005, 06:57:18 PM »

Quote
What are you looking for more torque or more HP? obviously we all want more of both but the answer to that question dictates what to do with the heads and what cam to use and weather or not to enlarge the throttle body. The hot rod guys I have been discussing this with (many) the majority feel the 45mm TB will flow more than enough air for 125+HP however the injectors are questionable. The reason I am posting this is I believe that the Zippers TB reuses your stock injectors. A questionable solution to the issue of HP.
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B767capt

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Re: SE-253 cam specs
« Reply #17 on: April 29, 2005, 08:05:44 AM »

I had mine dynoed after the build with the stock TB and then with a 53mmTB.  The numbers or curves were the same until 3500 rpm, then the 53mm TB jumped up on both TQ and HP.  They were concerned that 53 might have been too large and loose velocity which means low TQ, but it matched the stock TB.
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Rineharts, Wood TW400G cams, SE 103+ stroker pistons, 53mm TB, PClll.

kng103

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Re: SE-253 cam specs
« Reply #18 on: April 29, 2005, 01:17:30 PM »

Quote
I had mine dynoed after the build with the stock TB and then with a 53mmTB.
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2004 flhrci se-103 pearl white
bassani true duals w/ho mufflers
se air cleaner
sert
se-251 cam
s&s reed valve
24/37 gearing
se-6 sp
rumble road speakers
2008 lincoln mark lt(silver)

DCFIREMANN

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Re: SE-253 cam specs
« Reply #19 on: April 29, 2005, 08:02:43 PM »

Good deal Capt. I might hava thought that a 50mm would have been just about right. I installed my 50mm last night. I really need to measure the stock throttle body. 5mm sure is a big difference. I am going to try to ride it sunday. Stay safe.

THE DAWG
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B767capt

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Re: SE-253 cam specs
« Reply #20 on: April 30, 2005, 11:15:55 AM »

KNG103 I emailed you the dyno sheet.  I tried here, but it said the file was too large.  If you know how to get it on here please do.  
Thanks, Bill
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Rineharts, Wood TW400G cams, SE 103+ stroker pistons, 53mm TB, PClll.

DCFIREMANN

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Re: SE-253 cam specs
« Reply #21 on: April 30, 2005, 03:50:04 PM »

Capt what were the numbers?????
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kng103

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Re: SE-253 cam specs
« Reply #22 on: April 30, 2005, 04:42:21 PM »

Quote
KNG103 I emailed you the dyno sheet.
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2004 flhrci se-103 pearl white
bassani true duals w/ho mufflers
se air cleaner
sert
se-251 cam
s&s reed valve
24/37 gearing
se-6 sp
rumble road speakers
2008 lincoln mark lt(silver)

kng103

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Re: SE-253 cam specs
« Reply #23 on: April 30, 2005, 04:43:47 PM »

Quote

here goes nothing

« Last Edit: April 30, 2005, 04:44:37 PM by kng103 »
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2004 flhrci se-103 pearl white
bassani true duals w/ho mufflers
se air cleaner
sert
se-251 cam
s&s reed valve
24/37 gearing
se-6 sp
rumble road speakers
2008 lincoln mark lt(silver)

B767capt

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Re: SE-253 cam specs
« Reply #24 on: April 30, 2005, 05:09:15 PM »

Thanks you saved me from redoing it.  I appreciate it.  Bill
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Rineharts, Wood TW400G cams, SE 103+ stroker pistons, 53mm TB, PClll.

kng103

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Re: SE-253 cam specs
« Reply #25 on: April 30, 2005, 05:33:12 PM »

Quote
Thanks you saved me from redoing it.
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2004 flhrci se-103 pearl white
bassani true duals w/ho mufflers
se air cleaner
sert
se-251 cam
s&s reed valve
24/37 gearing
se-6 sp
rumble road speakers
2008 lincoln mark lt(silver)

bubbarosa

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Re: SE-253 cam specs
« Reply #26 on: April 30, 2005, 07:03:42 PM »

Hey B767cpt... are you using the "stock" se103 heads or the se103+ heads with those 103+ pistons?  alot of places i look says that ain't going to work with stock  and some people say it works great.   I like those numbers either way though!
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B767capt

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Re: SE-253 cam specs
« Reply #27 on: April 30, 2005, 07:41:05 PM »

Yes I am very happy with the build.  Bob Wood did the math and Colin at Underground did the head work.  The valves are stock too.  This is what I got with the CVO 103 heads.  We wanted to keep them on there to keep the value of the bike.  They were only decked to make them square.  Bob did not want to butcher the heads.  All the compression is from the pistons and the .030 head gasket.   It's about 10.7 or 10.8.  We put .005 over on piston size.  The dyno was done in very humid and hot conditions and we figure with good air it would have pumped out 128-129 on TQ and 118-119 on HP.  The best thing is the valve train is quiet.  It had a tick before when hot.  Not now.  I was lucky as my crank run out was perfect so no gear noise.  The bike runs much smoother than when stock from the factory.  It ain't lean.
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Rineharts, Wood TW400G cams, SE 103+ stroker pistons, 53mm TB, PClll.

DCFIREMANN

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Re: SE-253 cam specs
« Reply #28 on: April 30, 2005, 08:02:27 PM »

CAPT those are good numbers for a fuelie. You get some good air and the numbers will only get better. How does the bike ride? Stay safe.


THE DAWG
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B767capt

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Re: SE-253 cam specs
« Reply #29 on: April 30, 2005, 08:23:48 PM »

Dawg the thing is scarry fast.  I mean your at 90mph at a blink of an eye.  It pulls real hard.  i just hope it lasts.  Still getting original mileage.  At 180 miles I put 4.5 gallon in.
Bill
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Rineharts, Wood TW400G cams, SE 103+ stroker pistons, 53mm TB, PClll.
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