Jnimbostratus Street Fighter Project

[jnimbostratus]

Yes I was thinking more about it and I think I'm just going to try a large clear inline filter so I can see what's happening also. Just gravity feed that and t the return line from the regulator to before the fuel filter for some additional volume

[jnimbostratus]

So I went ahead and revamped my fuel system replaced my slick anodized blue earls performance fuel filter with a big ol' clear one from AutoZone and t'd the regulator return line to the pump feed line right before the filter and it seemed to help but only way to tell was to test ride.. but it was raining.. so I test drove it anyway. 4th gear about 45-50mph roll into throttle and the bike just dogtailed down the road while making all kinds of beautiful sounds. Then I dried out and I went back out and I couldn't be happier with the results

[jnimbostratus]

I know words are just words so here is some action from the day I was finally satisfied with the performance of my bike. More satisfying videos will come as soon as I can get somone to film me from a car.

https://www.instagram.com/p/BEHcyrzkFPr/

https://www.instagram.com/p/BEHc60DEFP9/

[cclase]

That's cool!  It's been awesome to follow your progress on this build and to see you get it out for a ride!  Great job dude!

Chris

[jnimbostratus]

Data log shows acceleration at 1.408gs when she spools in third at about 50 mph and an estimated hp of 320. I think this calculation may be a bit optimistic and skewed considering I guessed total wheight of me and bike at 800 pounds. Rode it for about 3 hours Saturday and had to order new tires when I got home. So that's the good news. The bad news.. about 3/4 of a mile from home the throttle bodies blew out of thier boots so Sunday I tore the bike apart in the drivway with my backpack tools and remounted the throttle bodies then took it down the rode and they popped off again as soon as the turbo spooled so now I'm going to fab up some new manifolds on the motor side and weld a nice lip on all 4 of them to get a good grip with the couplers.

[fj1289]

Can you make some brackets from the allen heads that bolt the boots to the head to somewhere on the throttle bodies?  Like the Busa boys do?

[jnimbostratus]

One of the 4 manifolds all welded up. After this picture I cut 1 inch off the end of each. Test fit them today, and it appears they are the ticket.

[jnimbostratus]

Got her back together and seems to be running the best she ever has so I decided to abuse the rear tire. Have a brand new set of 'shinko 003 stealth' tires ready to mount. So here's a burn out in third gear at 8 psi. Spool is pretty  audible.

http://scontent-lga3-1.cdninstagram.com/t50.2886-16/13158292_491804074338921_1133367350_n.mp4

[jnimbostratus]

Hung the bike from engine hoist while I got the new tires mounted

[jnimbostratus]

So after i put the tires on I also redid all my vacuum lines and added the manual boost controller set to a very low setting. Then when the rain finally stopped I forgot I put it on and hit 16.5 pounds of boost on my way home. I thought the increase in power was so to the new manifolds but i had a doubt it made that much difference then when I got home and saw the 16.5 psi on the datalog it made sense. Then today after work at a gas station I noticed my valve cover spraying oil and found one of the bolts has backed out almost all the way so I pulled out a wrench to tighten it at the gas pump and it snapped so bikes down again till I can perform surgery.

[Pat Conlon]

With so much boost (and resulting blowby) it's no wonder your valve cover lost its seal. It will happen again. You are going to have to find a way to relieve your higher crankcase pressures. I suspect the oem crankcase vent won't cut it (never designed to relieve that much pressure), unless you are thinking about a vacuum pump or running a vent line into the compressor intake (bad idea: you will get oil ingested in the compressor).

Have you thought about adding a top end vent?
Kinda tricky, there's a lot of oil splashing around up there, easy to blow your oil out along with the gasses. Some type of oil baffle or separator would be needed with a drain back to your crankcase or you could combine that top end vent with your crankcase vent and run it into a catch can and drain that back to the crankcase..

[fj1289]

Got her back together and seems to be running the best she ever has so I decided to abuse the rear tire. Have a brand new set of 'shinko 003 stealth' tires ready to mount. So here's a burn out in third gear at 8 psi. Spool is pretty  audible.

http://scontent-lga3-1.cdninstagram.com/t50.2886-16/13158292_491804074338921_1133367350_n.mp4

I think this is hands down the best street-fightered FJ out there -- built and used in the real street fighter fashion -- not the pretty polished show bikes they have become once theses outcasts became popular

Good on ya James!

[jnimbostratus]

Effin A 1289 you get it lol i appreciate your appreciation. And yea pat I think I'm going to end up venting the valve cover to a catch can that's also tied into the crank case. The stock crank vent by size should be more than enough especially since I decided to keep it at 8 psi till I have another motor in my hands that I can build to take more boost. I think the bolt backing out was not necessarily boost related because it has happens to me before I had the turbo but it is possible. guess it's time to thread lock them.

[jnimbostratus]

Got everythingb sorted and been working on my fuel table use ve anylize feature in megalog viewer still running real rich but I purposly started to tuning process on the rich side. Here's a 3rd-4th gear pull from 45-110 mph.


http://scontent-lga3-1.cdninstagram.com/t50.2886-16/13247436_1772151359681161_491929008_n.mp4

[jnimbostratus]

I discovered some exhaust leaking at the collector on the v&h headers and I imagine this is hurting spool time and the overall efficiency of my setup so I think it's time to build a full custom exhaust to the turbo. Anyone know what size the primary tubes are on the Vance an hines 4-1 headers? If No one knows I will just measure but I am trying to avoid removing the exhaust wrap until I'm ready to actually do somthing so if I can get a pipe diameter I can order some mandrel bends. I'm hoping to not only make the exhaust more efficient and air tight but also regain some lean angle as right now my "up pipe" to the turbo hits the ground if I try to corner to the right with any sort aggression at all.