The UK's No1 Lambretta & Vespa Scooter Forum.
https://www.scooterotica.org/forum/
gadgetman wrote:I was correct- up to almost 8,000 rpm the JL is making UP TO 4bhp more .
Im hoping Ads will let us borrow one for a bit so we can strap it to a few customers machines and post up results etc.....gadgetman wrote:.........it would be nice to see the effect of this exhaust on a more mainstream barrel not an extremely rare Monza 230 as we all know the port configuration has as much effect on the power delivery as the design of the exhaust.
mmmmm..be interesting to see how it performs on say...erm.a stage 4 200 iron barrel..Im hoping Ads will let us borrow one for a bit so we can strap it to a few customers machines and post up results etc.....
.. 
Please don't forget this was designed pretty much with road racing in mind, hence where the power is delivered.gadgetman wrote:I was correct- up to almost 8,000 rpm the JL is making UP TO 4bhp more ,( ie at 6,500 rpm JL = 18bhp / Ads = 14bhp). The extra revs that the Ads pipe allows between 8,000 and 9,500 rpm is quite impressive but in real life unless you had a 5 speed gearbox the JL wins hands down except perhaps in a 150m sprinter or perhaps a quarter mile sprinter that had gearing set up specifically for that purpose. Having said all that many people like their engines to rev to the max and it would be nice to see the effect of this exhaust on a more mainstream barrel not an extremely rare Monza 230 as we all know the port configuration has as much effect on the power delivery as the design of the exhaust.
But I will say this pipe is not for a stg4 200 because it makes no sense to put one on one basically...... 
bad luck andyAdspeed wrote:But I will say this pipe is not for a stg4 200 because it makes no sense to put one on one basically......
But I will say this pipe is not for a stg4 200 because it makes no sense to put one on one basically......
.................. 
..not fair that..bad luck andy
I had a jl4 on my stage 4 and it flew , still quite good tourque as well , obviously not as much as the jl3 but i loved it , screamed the arse off it and never had any bother ....until i went to a ts1 ....Lam46 wrote:mmmmm..be interesting to see how it performs on say...erm.a stage 4 200 iron barrel..Im hoping Ads will let us borrow one for a bit so we can strap it to a few customers machines and post up results etc.....
