Regurgitating my Turbo for next season

[Dogmeat]

Does BD service their turbo skids? I'd like to just send this whole skid off to them and have them inspect the turbo, everything, then ceramic coat the turbo housing while they're at it if possible.

Also .... I'm considering doing some changes:

First, I want to ditch my IC. How much does BD charge for the regular airbox?

Also, has anyone ever gone with Cutler's dual-injector throttle bodies with a BD kit?

I'm seriously contemplating buying their 58mm dual-injector TB's ... I'd be running 12-14 psi.

I still have to get a 'boondocking' clutching setup going for 12-14 psi too, anyone have any recomendations if I'm riding at 8,000 feet?

 

[WyoBoy1000]

At that boost the BD mini cooler with the fan works well, but would prefer a water/air IC. If you made changes like that to the TB you better know how to tune or just convert it to a cutler kit, I would sell it and build a new one with a 2876.

 

[backcountryislife]

Like wyo said... I'm sure it's doable, but that would be a bunch of tuning.

I'd see if you can get the pump that cutler uses, avoid the 2nd set of injectors, and just run 12-14 psi that way.

There's a reason we go with the cutler... I'd very much prefer to have the 2 inj. system & just keep boost under 15 psi.

 

[backcountry yardsale]

At that boost the BD mini cooler with the fan works well, but would prefer a water/air IC. If you made changes like that to the TB you better know how to tune or just convert it to a cutler kit, I would sell it and build a new one with a 2876.

Wyoboy have u switched to a 2876?

 

[WyoBoy1000]

No I have the biggest 2871 and it works great, I plan on putting it on a new one next year and either keeping this one as a backup or trade it for a stocker that anyone can ride, then again this one is prob more reliable than a stocker.

 

[Dogmeat]

At that boost the BD mini cooler with the fan works well, but would prefer a water/air IC. If you made changes like that to the TB you better know how to tune or just convert it to a cutler kit, I would sell it and build a new one with a 2876.

There wouldn't be any tuning issues that I can see other than probably having to add a little bit of fuel due to slightly less pressure loss in the throttle bodies. The main reason for the TB change is more uniform fuel spray from the auxillary injectors. I never really liked how it was sort of a 'spray and pray' deal with the BD IC setup, the Cutler TB's would probably mitigate that and give me a little more airflow. Not really worried at all about tuning changes due to the TB's ...

Also, the BD air/air IC is nice in the spring, but since %90 of my riding is boondocking, I don't really need the IC at all, and that means less lag by ditching it.

I don't see where I would need a bigger turbo at all, the turbo I have makes 13 psi just fine down stream of the IC, removing the IC would make the turbo work less hard to produce the same level of boost ... which, would be 'made up for' on intake to the cylinders due to the bigger TB's, but hey, if I only get 12 psi then thats ok, cuz it'll be a lot more responsive. Looking for response here more than anything.

I think my plans will work, I just need to talk to CPC about what they'd do to clutch the thing I guess.

 

[WyoBoy1000]

When you put the injectors in the TB it will get the fuel into the engine more efficiently, thus you will need to retune, the fuel get there quicker so you will have to change where and when you send fuel along with a different amount. It will be a totally different fuel tune. Good luck figuring that out. The bigger TB is almost a mute point, if you have 10lbs of boost it is still 10lbs of boost no matter what seize the TB's are, it might get there a little quicker but will slow back down in the engine ports. I think you have a 2860 (correct me if I'm wrong) LAG!!!!! You could throw on a 2876 and gain more bottom end and overall power with less boost than you would removing the intercooler. Shain Stanger told me his m8 will beat any m1200 out of the hole. With that said I'm going to stop trying to help a bd kit owner waste money and tell you what to do if you want all the right way--- call twisted and update the kit with a 2876 and water/air intercooler that bolts in line directly between the turbo and TB's. I'm sure someone will think I'm being a dick but when you know what works and have seen many waste money I feel obligated to pass along the info. So either leave it alone (except for maybe ditching the IC) or do it right.

 

[backcountry yardsale]

The 2876 is a torque monster with very little to no lag which makes it perfect for boondocking imo but the setup your thinking about now should work well once dialed in

 

[Wheel House Motorsports]

you guys seem to think big turbos are only for BIG boost. far from it. buddy is running a 3071 on an 800 poo motor on 4.5# of boost, it pulls the same clutching as his 2871 on 7/8# but has a much more linear powerband where the 2871 was very on/off.

the specific 3071 he has is almost identical flow wise to a 2876 due to different housing's etc. but the point is, its a HUGE turbo and it actually made the sled run much better then the smaller turbo. also, by compressing the air less, your charge temps stay lower. his charge tube/airbox dont get but lukewarm. moral of the story 2 strokes love huge turbos. become a beleiver. but you will need more fueling if you step up, they move a LOT of air.

 

[product tester]

the 2876 dirves so nice I built 3 of them on m8 this season 1 on pg 1 on boost juice 10# and 1 full race I let my kids ride all of them and they loved them my boys are 16 and 14 next year I hope to have 3 mew cats with the 2876 on them. the best place I have found for the injectors is in the boots,I have built billit boots for all my turbos (with injectors) better responce and top power.

 

[WyoBoy1000]

The injectors in the boots, getting closer and closer, sweet!