Search found 18 matches
- August 24th, 2012, 2:19 am
- Forum: Drive Tech
- Topic: Aluminum Sleeved, Nikasil Plated Cylinders
- Replies: 11
- Views: 2184
- January 8th, 2012, 3:28 pm
- Forum: Drive Tech
- Topic: Dynorun completed.
- Replies: 12
- Views: 1232
I believed that the chaos was only present in my garage, but I feel confortable seeing that the swedish men are like me :cool: Next will be the mine, I talked with my friend to carry the bike to his dyno, but first, I need solve my cylinder head problems and put a rear SM wheel... The torque is high...
- January 8th, 2012, 5:13 am
- Forum: Drive Tech
- Topic: Dynorun completed.
- Replies: 12
- Views: 1232
- January 2nd, 2012, 12:13 pm
- Forum: Drive Tech
- Topic: Dynotime Saturday 7 Januari
- Replies: 8
- Views: 297
- December 30th, 2011, 4:30 pm
- Forum: Drive Tech
- Topic: Dynoport anyone?
- Replies: 24
- Views: 2044
- December 30th, 2011, 4:22 pm
- Forum: Product Reviews
- Topic: CPI sand pipe vs ProCircuit
- Replies: 9
- Views: 9282
I can´t carry my bike to the dyno. I have a problem with the cylinder head. I tried to put a decompressor and I ruined my best cylinder head (`86 model). Then I weld the hole for the decompressor but it´s leak some cylinder pressure to the cooling circuit and throw water through the radiator vent......
- December 29th, 2011, 12:17 pm
- Forum: Drive Tech
- Topic: Dynoport anyone?
- Replies: 24
- Views: 2044
- October 31st, 2011, 9:06 am
- Forum: Drive Tech
- Topic: Exhaust port: How much to raise it for iceracing?
- Replies: 44
- Views: 1948
The low end with this exhaust is very smooth, but the transition to the mid-range it´s very unpredictable, like a elephant kicking your ass :cry: . It gives to the bike a pure '2 stroke behaviour', you can know with exactitude the rpm in which the exhaust and engine are in resonance. It´s very peaky...
- October 30th, 2011, 6:17 pm
- Forum: Drive Tech
- Topic: Exhaust port: How much to raise it for iceracing?
- Replies: 44
- Views: 1948
- October 30th, 2011, 4:25 am
- Forum: Drive Tech
- Topic: Exhaust port: How much to raise it for iceracing?
- Replies: 44
- Views: 1948
Hi Johnny. I´m Francisco from Spain :roll: .Eric Gorr recommended in his book raise the exhaust port 2mm and keep the transfer in stock height for a mild porting. I´m not a expert in the CR500 but I ported mine and I can tell my experience. Recently, I have rebuilt my engine: -90mm and new Vertex pi...
- October 18th, 2011, 1:29 pm
- Forum: Product Reviews
- Topic: CPI sand pipe vs ProCircuit
- Replies: 9
- Views: 9282
- October 18th, 2011, 7:15 am
- Forum: Product Reviews
- Topic: CPI sand pipe vs ProCircuit
- Replies: 9
- Views: 9282
Excuse me but I´m spanish and I don´t understand very well your question. I bought the cdi directly from hpi.be . It cost me 492 euros (around 670$), CDI+2curves+program interface, cables,... including shipping, VAT. http://electrexworld.co.uk from england sell this cdi cheaper but they don´t reply ...
- October 18th, 2011, 6:58 am
- Forum: Product Reviews
- Topic: CPI sand pipe vs ProCircuit
- Replies: 9
- Views: 9282
I bought the CD1509D for the CR500 ignition, with the 2 curves option and the interface to program the cdi. I can program the ignition timing advance for the whole range, but there is other options when you buy the cdi (more expensive) wich allow program power jet carb and differents timings curves ...
- October 18th, 2011, 4:40 am
- Forum: Product Reviews
- Topic: CPI sand pipe vs ProCircuit
- Replies: 9
- Views: 9282
CPI sand pipe vs ProCircuit
Hey, today I can test the CPI sand pipe in my ´94 CR500. I have rebuilt and tuned the engine recently: -Rebore the cylinder to 90mm and new Vertex piston. -190/126 porting, widening the exhaust port, grinding the exhaust port flangle, ... -V-Force 2 reed cage. -41mm PWK by Sudco. -´86 cylinder head ...
- April 22nd, 2011, 5:24 pm
- Forum: Drive Tech
- Topic: Piston length
- Replies: 2
- Views: 149
- April 22nd, 2011, 5:13 pm
- Forum: Drive Tech
- Topic: Piston length
- Replies: 2
- Views: 149
Piston length
Hi, someone know if there are a piston with more length than the stock?. I want to try shorter timing in my CR cutting the base of my cylinder 1mm, but the problem is when the piston will be in TDC, the crankcase will be exposed to the exhaust pipe 1mm because the piston length is not enough to clos...
- April 1st, 2010, 12:36 pm
- Forum: Drive Tech
- Topic: CR500 timing curve comparisons
- Replies: 38
- Views: 5735
- February 14th, 2010, 3:25 am
- Forum: Drive Tech
- Topic: CR500 timing curve comparisons
- Replies: 38
- Views: 5735