Twin Turbo 5.0 Build

KenB

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Wow Ken that car is flying.. what changed to get down from 10.4 to 10.2? thats a huge jump with the same stock torque converter. totally sucks that the pump gears failed, but you have earned even more respect, you have tested the limit and found it. sure it may have been tolerances or who knows what and other pumps could last a lot longer but JPC also was saying the gears are a good idea too. please post pics of the tear down.

can't wait to hear about what cam's ya'll will run in the new engine.

oh and ps. keep an open mind about the gtx3071r :) i know its overkill, but hell when we are forking out $$$ its all overkill !

Only difference was ditching the stock catback. It was killing the car which can be expected at this power. Yeah, JPCs went on the dyno so they were able to swap it. There have been quite a few pumps go on the high power stock cars for sure.

It will be awhile for the teardown. For the new engine we are starting with a different engine so we can leave this engine in to finalize the kit. Need something in there for fitment etc.
 

KenB

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Meanwhile back at the batcave.....

Jon Lund and Michael Rauscher of L&M Engines spent some time this weekend planning out the camshafts for this build. They made some nice breakthroughs and came up with some very trick ideas for the cams for this engine while doing some research on another combo. Also, Boss 302 CNC heads are on their way. This is going to be one of the most advanced Coyote builds to date thanks to Michael.
 

D.T.R

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Meanwhile back at the batcave.....

Jon Lund and Michael Rauscher of L&M Engines spent some time this weekend planning out the camshafts for this build. They made some nice breakthroughs and came up with some very trick ideas for the cams for this engine while doing some research on another combo. Also, Boss 302 CNC heads are on their way. This is going to be one of the most advanced Coyote builds to date thanks to Michael.

If you don't mind me asking, how much are coyote heads?
Also, do they have the same valvetrain as a regular GT?
 

KenB

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If you don't mind me asking, how much are coyote heads?
Also, do they have the same valvetrain as a regular GT?

Retail for a new 5.0 stock head through FRPP is $1049.95

The Boss version is $1499 and adds CNC porting, hollow stem intake and sodium filled exhaust valves and stiffer valve springs.
 

D.T.R

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Retail for a new 5.0 stock head through FRPP is $1049.95

The Boss version is $1499 and adds CNC porting, hollow stem intake and sodium filled exhaust valves and stiffer valve springs.

So for $1500 you get a fully assembled head? one or both? That's sweet tho.
 

D.T.R

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ah ok. Hmmm
In for results. I'm sure those heads are going to love boost.
 

twistedneck

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Meanwhile back at the batcave.....

Jon Lund and Michael Rauscher of L&M Engines spent some time this weekend planning out the camshafts for this build. They made some nice breakthroughs and came up with some very trick ideas for the cams for this engine while doing some research on another combo. Also, Boss 302 CNC heads are on their way. This is going to be one of the most advanced Coyote builds to date thanks to Michael.

Are you guys going to still use the TiVCT? Will that help even more to build boost early? What limitations are you looking at using the TiVCT? Oh and i hope you plan to offer this same engine / cam combo for your turn key kit.

On the boss heads, they are quite cheap for what you get.. have you heard of other people getting even more flow out of these heads than the boss factory flow? JPC - Livernois both published some really good flow numbers but i can't compare to the boss head.

What was the cam idea you guys had?? come on, out with it! did you change the centerline? add a ton of exhaust duration? lift? it can't be very radical if you are using boss springs.. and do you need stiffer springs to hold that valve closed in high boost situations?

Sorry for the questions but hey.. we are lining up the $ here. :)
 
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KenB

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Are you guys going to still use the TiVCT? Will that help even more to build boost early?
Yes, although it's spooling very early now that we freed up the exhaust.
What limitations are you looking at using the TiVCT?
Not sure. While I am involved, Michael is the mastermind when it comes to the camshafts. But I'm pretty sure we plan on maintaining full range.
Oh and i hope you plan to offer this same engine / cam combo for your turn key kit.

Yes. In fact I would build turn key cars ala Roush or Saleen if I thought people would buy them.


On the boss heads, they are quite cheap for what you get.. have you heard of other people getting even more flow out of these heads than the boss factory flow? JPC - Livernois both published some really good flow numbers but i can't compare to the boss head.
No I haven't and at some point you reach a point of diminishing returns. I haven't seen much data out there to support anything better than the Boss heads currently. But I would like to see some back to back testing. Flow numbers are even less important than dyno numbers to me. :)

What was the cam idea you guys had?? come on, out with it! did you change the centerline? add a ton of exhaust duration? lift? it can't be very radical if you are using boss springs.. and do you need stiffer springs to hold that valve closed in high boost situations?
Can't really talk about it but you have some good ideas. :) I don't think we are going to use the Boss springs. They aren't much stiffer, just a little. Since we are using VCT, we have to strike a balance between enough pressure and allowing VCT to stay happy. But as always I have full confidence in Michael's abilities.

Sorry for the questoins but hey.. we are lining up the $ here. :)


Not a problem. I'm trying to be up front as possible while holding on to a few small secrets. Looks like this is turning into a business and I can't share everything. :) But I'm also about doing this as an open book. That's why I was 100% up front about hurting what looks to be the oil pump. Most other places would have just lied and said "Oh, did well at the track, time to build it" and left out the important stuff. ;)
 

Ditty

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Gimme gimme gimme gimme!!!! I'll take that blown block off your hands if you're gonna chunk it!!! LOL. Need a new living room table.

I SO love this, as I've said before! I'm getting a fatty just thinking about driving it!
 

TRBO VNM

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Mike at L&M is top notch. He built my motor and he is building Jakes (badass03cobra) as well. His interest is only making it right and getting the customer what he wants.
 

wildaries83

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Sheesh all this waiting! Would I be correct to say if we have aftermarket headers that they are going to be useless with this kit?
 

SVTour99

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I'm using the down time to find the funds for a built motor. Fingers crossed this kit makes it to market.
 

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