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Old 06-29-2014, 11:10 PM   #691
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Default Re: 2013 Shelby GT500 X275/8.5 Build

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Sorry to keep everyone waiting. First off I want to thank London Chassis Dyno for all the hard work, MMR for building one he'll of an engine, FI and LJMS for providing one of the baddest turbos available and of course the wife for putting up with the bullshit. We did get tuned by Steve Petty and the man is an absolute genius on BS3 idle, drivability, coming up on the T brake and making boost are perfect. So first pull we made as a baseline to backup what we seen on the chassis dyno and the car made 960 @ 7.1 psi peak and leveled out at 6 psi on the dyno jet. As we tried to put more boost on it we seen that the curve was looking very strange and overall was loosing power in the end we tried 6, 8, 11 and 18 psi and made the most power on the dyno at 8 psi which made 1031 on the tire. 11 and 18 psi made 995 and 998. Never turned it up higher than that as there was no point. Unfortunately the car was blowing through the converter just a bit too loose. So no big #s on this one. We are taking the car to the track this weekend to see how the converter will do. Really good chance it will be perfect for the track. The ET will prove everything after all the dyno is just a tool to get your tune right and I have never seen a tight converter that makes good #s on the dyno worth a shit on the track. Pettys personal opinion was that it was the most powerful mod motor he has tuned and that it is easily making 1400+. Just not gonna see it on the dyno. Depending on how it does this weekend we May send the converter back to Lenny at ultimate and have it tightened up and afterwards may consider revisiting the dyno. Thank you to everyone that has followed us through this build and stay tuned we may still surprise you.
looks like i won the dyno number contest, for now anyways lol... good to hear its running hard!
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Old 06-29-2014, 11:16 PM   #692
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Default Re: 2013 Shelby GT500 X275/8.5 Build

what convertor did you get from lenny?
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Old 06-29-2014, 11:16 PM   #693
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Default Re: 2013 Shelby GT500 X275/8.5 Build

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1092rwhp/820lbft @7300


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Ouch!!! I sure hope it does better than that......
how close was the torque and rpm? lol
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Old 06-30-2014, 06:27 PM   #694
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Default Re: 2013 Shelby GT500 X275/8.5 Build

How boring would it be if everyone built twin turbo Fox's? Congrats on the build and don't pay attention to those haters.
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Old 07-13-2014, 08:57 PM   #695
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Hell of a build
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Old 07-22-2014, 02:22 PM   #696
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Any updates ???
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Old 08-12-2014, 01:02 PM   #697
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Default Re: 2013 Shelby GT500 X275/8.5 Build

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Any updates ???
any thing to report ?
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Old 08-19-2014, 08:18 PM   #698
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Very, very nice. In for updated results.....
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Old 08-23-2014, 05:57 PM   #699
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Well, everything was going full steam ahead until a couple months ago. Hopefully the mnotor survived the dyno and shakedown runs.....
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Old 08-24-2014, 10:44 PM   #700
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Saw the motor was for sale, maybe switching to a larger motor
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Old 08-24-2014, 11:18 PM   #701
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Wow, it's not like it wasn't making enough power. Found the thread over on SVTP.

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Old 08-25-2014, 03:29 PM   #702
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Default Re: 2013 Shelby GT500 X275/8.5 Build

Hey gents sorry I haven't really been around. JMS u definitely nailed it on the head, although we were blowing through the converter. We are going to do a rear gear change to tighten it up. Nothing wrong with the engine, we just got put on the sidelines due to a rule addition for a class we wanted to race this year. so figured since we had some downtime may consider building a all out race motor. I have another block sitting here and wanted to start fresh and leave my current shortblock entact. Who knows what will happen though I change my mind worse than a women on what direction I want to go on the build. Thanks everyone for keeping up.
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Old 11-01-2014, 11:13 PM   #703
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Default Re: 2013 Shelby GT500 X275/8.5 Build

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Hey gents sorry I haven't really been around. JMS u definitely nailed it on the head, although we were blowing through the converter. We are going to do a rear gear change to tighten it up. Nothing wrong with the engine, we just got put on the sidelines due to a rule addition for a class we wanted to race this year. so figured since we had some downtime may consider building a all out race motor. I have another block sitting here and wanted to start fresh and leave my current shortblock entact. Who knows what will happen though I change my mind worse than a women on what direction I want to go on the build. Thanks everyone for keeping up.
Well whats going on with the car going into 2015
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Old 02-21-2015, 07:25 PM   #704
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Default Re: 2013 Shelby GT500 X275/8.5 Build

soooooooooo..........
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