Jnimbostratus Street Fighter Project

[jnimbostratus]

latest revision.. i can actually sit on the bike in my normal riding stance again. looks much better also.

[Pat Conlon]

There ya go!

I really enjoy reading this

[~JM~]

That looks much better! Now maybe you won't cook your leg.

[Mark Olson]

The air intake is figured out now 

the turbo exhaust is gonna be the next problem with it so close to your thigh when riding . 

It is looking pretty awesome and should be a lot of fun when completed.

[theLeopard]

Is it feaseable to mount those lamps underneath the frame Behind the center third sectional of the forks?


Yes. !! 

Mechanically functional for maintenance, and that tire looks radical.
100% jealous. Paint the tank Leopard print and consider it stolen.

[jnimbostratus]

Mark I think I have a strong idea for the exhaust that should look brilliant and keep the heat down. And leopard, thank you I appreciate the compliment. Bikes been getting a great response on the forums and in my shop.

[jnimbostratus]

used some fiberglass resin to seal any leakes on the intake manifold welds did it right after i ran out of fuel for the furnace so it took forever to cure. i actually had fuel again before it was hard.

so got everything loosely put back together and now with much fewer leaks you can actauly hear some turbo in the intake and when you put your hand over the turbo inlet it wants to suck it right in. still need to seal up a few spots a little better and get the fueling done before putting a real load on it but it is definitely making some power as



heres a burn out. i pulled in the clutch and cut the throttle as soon as a felt it boost a little becuase waste gate actuator was not hooked uo and didnt want to over boost it.

https://www.youtube.com/watch?v=Vwqoij1P9wQ

[Mark Olson]

lookin good , 

That bike is gonna  be lots of fun.

[jnimbostratus]

i think i understand how the vacuum advance works and if it works how i imagine it would its actually advanced all of the time considering its not hooked up. the vacuum actually retards the timing and as rpm increases the vacuum decreases which results in the advance. so if i want to truly eliminate the advance i would need to have a constant vacuum to my black box? input please friends..

[Flynt]

the vacuum actually retards the timing and as rpm increases...

I don't believe that's how it works.  To get const advance (in the absence of a mechanical advance), just unplug the vacuum line.

I think the vacuum indicates throttle position and is inversly proportional to a first order.  The vacuum indicates a lightly loaded engine and adds power through advancing the timing.  Side effect is happy engine, efficient/longer burn, better mileage, etc.  You crack the throttle and the vacuum goes to atmosphere, dropping your timing back to retarded state where you're not going to detonate (ping).

I could also not know what the hell I'm talking about.

Frank

[Flynt]

The High vacuum indicates a lightly loaded engine...

less confusing?

Frank

[jnimbostratus]

so if i hook up a hose to the black box and i suck on it while the bike is running the timing will retard? if this is the case in order to get what i want out of it i could attach a hose to where the filter gos on the turbo so it always pulls under load. if i hook it up to the nipple on carb #2 it will blow under boost rather then pull causing it not to work. i dont know thinking out loud

[Flynt]

i dont know thinking out loud

I'd think you'd go to a pure mechanical advance.  That would work well with boost anyway, just don't have much advance when fully in.

Frank

[Mark Olson]

You may want to use a turbo specific ignition system . With a turbo too much advance will melt your pistons .

I was looking at different Fj ignitions on the web and there was one with 5 different advance curves , rev limit , shift light for about 370.00 bucks.

Don't know for sure but with the stock fj ign used with turbo there would be a small vac signal when boosting so it wouldn't advance anyway.

I saw a curve chart once in a post that showed 55* adv at 6500rpm and 38* at 9000rpm.

[jnimbostratus]

I plan on using the dyna2000 as soon as my wallet will allow but for temporary I'm just looking to make the stock unit not advance.