High Quality Chainsaw Bars Husqvarna Toys Hockfire Saws

201t ported with nice gains

NorcalFlyingsquirrel

Well-Known OPE Member
Local time
11:56 AM
User ID
4565
Joined
Nov 10, 2017
Messages
90
Reaction score
126
Location
Santa Cruz Mountains
Country flag
Just playing with my first 201 port job and had a couple questions. So far .04 off base and squish (.17 squish), now sitting at in. 72(80 begin piston v 78 begin fresh air) ex 112, trans 130 to 140.
plan: leave intake alone(widen)
maybe square v on piston giving 80 in? Ex 105 and 65%, trans 125 flat. does this intake v smooth out flow or is a straight hit better like a non strat. Or should I be raising the intake and stratos. Question 2, I gave the cylinder a sex change now what kinda orifice would be best. Mastermind has stated the importance of tight case volume so would just radiusing the edges be best vs removing chitloads to taper to case? And turdly, should I go down to ex 105 or lower, I wonder if keeping it high would give me more torque or is this the point if diminishing returns. Thanks in advance, enjoying the new challenge of non gutted strato porting. Also would filling the case from transfer extension bump up be worth it ?
+
 

Attachments

  • 20220319_112935.jpg
    20220319_112935.jpg
    72.4 KB · Views: 28
  • 20220319_112954.jpg
    20220319_112954.jpg
    45 KB · Views: 26
  • 20220319_113007.jpg
    20220319_113007.jpg
    71.3 KB · Views: 24

NorcalFlyingsquirrel

Well-Known OPE Member
Local time
11:56 AM
User ID
4565
Joined
Nov 10, 2017
Messages
90
Reaction score
126
Location
Santa Cruz Mountains
Country flag
So I am impatient, and final numbers are
.015 squish,
Intake fuel 82 to 70 wfo.
air 75 to 70 wfo
Ex 106,
Transfers 125 (MFPITA!) even with a ching chao 90.
Blended lower to case so going to lose some velocity but Dyno Joes seemed strong so who knows?20220319_190821.jpg 20220319_190901.jpg 20220319_172612.jpg
 

NorcalFlyingsquirrel

Well-Known OPE Member
Local time
11:56 AM
User ID
4565
Joined
Nov 10, 2017
Messages
90
Reaction score
126
Location
Santa Cruz Mountains
Country flag
Also anybody tried succesful surgery on any of this plastic?
Well it runs, idles and sure feels as snappy as my ported 200t whilst revving le piss, videos tomorrow of cutting. After being in and out of it I really like how its all put together. Oh and muffler to stealth 100% with screen.
 

Attachments

  • 20220320_185634.jpg
    20220320_185634.jpg
    72 KB · Views: 22
  • 16478320515293469317693136303427.jpg
    16478320515293469317693136303427.jpg
    73.9 KB · Views: 27

NorcalFlyingsquirrel

Well-Known OPE Member
Local time
11:56 AM
User ID
4565
Joined
Nov 10, 2017
Messages
90
Reaction score
126
Location
Santa Cruz Mountains
Country flag
Heres a vid, I feel like there should be more in there. Curious about peoples intake path mods and then what bringing the exhaust/trans down to 100/120 or leaving it 110 would be better. I will try. Need a more consistant cant first.
 
Top