jsvtcobra Posted February 3, 2012 Report Share Posted February 3, 2012 (edited) ( have been seriously considering buying the 2013 GT500. I have just been waiting on the price and the date the order bank opens. I have 5.0's March issue and I was waiting for the right time to read it. Well I finally sat down and started to read it, I will admit I did not finish the article. I read it waiting for a appointment. But what I read got me thinking The 2013 GT500 is going to have a lot of amazing new options, track pack, electric adjustable billstein suspension, and so on and so forth. And of course capable of breaking the 200mph barrier. The article in the 5.0 mag covered the specs on the new motor. Here is what got me thinking. They took the 11-12" 5.4L block and bored it to 5.8L a increase of 0.4L. The 5.4L has a compression ratio of 8.5 to 1, the new 5.8L was increased and has 9.0 to 1. They upgraded the supercharger from a Eaton M122 (1.857L) to a Newer designed TVS 2.3L supercharger. And last they increased the boost, 5.4L running at 9psi (550hp @ the flywheel) to the 5.8L running the TVS to 15psi (650hp @ the flywheel). So my question is where is all the Hp at??? I do understand that the tunes are normally conservative from the factory but this seems like something is missing? They increased displacement, compression, upgraded the supercharger and its displacement, and the boost! It just seems like it should be making a whole lot more. This is my comparison. I would like any input from any TVS owners. It is my understanding that a lot of 11-12' owner were able to make around 650rwhp on the 5.4L @ 16psi using the TVS 2.3 kit, which is something like a SC, intake inlet pipe, tune, and injectors I think. That is my comparison. How is it that the 5.4L with the same SC technically make more Hp than the 5.8L. The 5.4L uses only one psi more that the 5.8L, but the 5.8L has more displacement, more compression. What is are going to be the results when we mod the 5.8L and turn up the boost??? Please tell me what you think???? Now I am kinda on the fence about the 13', but don't get me wrong it is still going to be a awesome car. Right now I'm just thinking that my 11' just might not be that bad.... Edited February 3, 2012 by jsvtcobra Quote Link to comment Share on other sites More sharing options...
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