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Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130#

Posted By: ghinmi

Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/09/20 01:00 PM

It just keeps making more power. Current spec is 2010 5.7 and tr6060 out of a Challenger. Drop in pistons/rods, Cometic head gaskets, ARP head studs, VVT locked, 80 lb injectors. Factory cast crank. Race weight 4130 lbs

Turbo combo is a s480 feeding a s366.

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Posted By: sycboi

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/09/20 03:55 PM

One of my absolute favorite G3 Hemi conversions that I’ve ever seen. Well done!
Posted By: fatman

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/10/20 12:50 PM

My favorite thing ever.
Posted By: Dragula

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/11/20 02:09 AM

That is a $hit ton of mph for those ET's....Congrats...Those MPH are showing you the real HP potential and its very impressive.

The reaction times need some work though.....
Posted By: 416challenger

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/11/20 02:11 AM

Ghinmi- How many pounds of boost are you running? That thing is flying.
Posted By: furious70

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/11/20 03:11 AM

and what led you to switch to a compound setup?
Posted By: ghinmi

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/11/20 11:37 AM

Originally Posted by Dragula
That is a $hit ton of mph for those ET's....Congrats...Those MPH are showing you the real HP potential and its very impressive.

The reaction times need some work though.....

Yes, huge mph for the et. But ultimately it's not a drag car and I'm still working on the launch strategy. Being a clutch car, changing the launch makes huge changes to the reaction time so I don't try to hit the tree until I have the launch locked down. We do mostly flashlight starts anyway.

Originally Posted by 416challenger
Ghinmi- How many pounds of boost are you running? That thing is flying.

Those passes were on 21-22 psi in 4th. A little less in 1st and 2nd.

Originally Posted by furious70
and what led you to switch to a compound setup?

I wanted more power than the small single could make and I didn't want to give up the responsiveness or low end boost.
Posted By: furious70

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/11/20 02:45 PM

Have you done testing to see how broad the boost range is then? i.e. boost comes in at 2000rpm and 'lasts' until 6000rpm based on exhaust backpressure that you deem acceptable? Are you desiring pretty low rpm boost for when you autocross? Still lots of work to do on my car but I settled on a VSRacing 76/75 with a T4 1.25 a/r to try to find one responsive but not choking.
Posted By: ghinmi

Re: Compound turbo 5.7 Eagle 9.97 @ 140 stick shift 4130# - 09/11/20 05:41 PM

By adjusting the bypass gate I can make it do essentially whatever I want. The way I have it set right now it comes into boost 1300-1400 rpm and holds till the rev limiter at 6500. I can have it make 20 psi by 2000 if I want to. Or I can make it lazy like a big single turbo car. I had to do this on a very tight autocross course just to kill the power.
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