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Old 01-30-2010, 06:33 PM   #1 (permalink)
43 ft/lbs of Doof
 
Mercury's Avatar
 
Join Date: Jan 2008
Location: Visitor From Another Planet
Posts: 167
Mercury wants to know Dino or Syn?
T-Man 590 Cams

My son has a 09 FatBob. Ness Big Sucker, SERT, V&H Short Shots.
72 HP 84 TQ

He's going 103 with some hand-me-downs.
From me:
Big Boyz ported stock heads off my 07
S.E. cast flats (look fine, gonna bore his stuff to them)

I made 96/107 with them using Andrews 54's & Rinehart 2:1's.
I also ran a .40 head gasket.

He wants to break 100 hp. I told him those pipes don't help.
He's gonna run .30 heads gaskets.
I told him I did 96 hp with a B motor, his A might do better.
He's thinking a little more cam. I know he'd have to change springs, but is 10.1 ~ 10.2 compression gonna be enough to run the T-Man 590's? His website chart wasn't nessesarily clear about it, it only mentioned 10.6 to 10.8 on a 95" to make it work. It's too late to call & it's Saturday. Anyone have any suggestions or advice?

Thanx!
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Mercury

*2007 FXSTC 103*
103+ Heads, 50mm Throttle Body, Andrews 54 H Cams
PC 111, Rinehart 2 into 1's
108 HP 112 FP/T SAE
Built by Me
Tuned by Jesse @ 41 Cycles

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Old 01-30-2010, 06:36 PM   #2 (permalink)
IronButt
 
Join Date: Aug 2005
Location: East Tennessee
Posts: 2,199
compressor#v wants to know Dino or Syn?
Give TMan a shout, he'll get back promptly, with CR.
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Old 01-31-2010, 02:52 PM   #3 (permalink)
Coonass Extraordinaire
 
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Join Date: Dec 2007
Location: Oklahoma
Posts: 681
beaureed445 wants to know Dino or Syn?
10.1-10.2:1 isn't enough for the 590. I'll work, but more compression will make more power. I ran that cam in my 103" build at 10.3:1, and it was ok. I bumped compression to 10.6:1 when I went 113" (same cam).
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2007 FXST
113" Science Project- Baisley Heads, T-Man Cams, HPI t/b,
CP Piston return springs, Fatcat with high flow muffler bearings,
Amsoil synthetic blinker fluid, etc, etc, etc.......
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Old 01-31-2010, 07:14 PM   #4 (permalink)
43 ft/lbs of Doof
 
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Join Date: Jan 2008
Location: Visitor From Another Planet
Posts: 167
Mercury wants to know Dino or Syn?
That was my concern. I'm not real comfortable bumping compression towards high 10's with cast flats. I'm thinking the 54's like 10:1 and stay in the parts group that sorta compliment each other.
Seems like to run 590's, would probably need different pistons and springs, and that blows the low buck 103 outta the water.
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Mercury

*2007 FXSTC 103*
103+ Heads, 50mm Throttle Body, Andrews 54 H Cams
PC 111, Rinehart 2 into 1's
108 HP 112 FP/T SAE
Built by Me
Tuned by Jesse @ 41 Cycles

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