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Originally Posted by SierraStormZL1
Thanks for the input guys and @SOCAL.M6.ZLE I have yet to read your message. This site is so flaky as of late that I feel I get one good attempt a day to read or post without it timing out repeatedly
@Z OH 6 - Funny you mention LTH, I too was questioning going with them due to the increased sound and with a convertible, I'd imagine it'd even be worse. Is there anyway to tame that down with like maybe resonators or swapping out mufflers to a reasonable level? What would I lose by not adding LTH aside from the ~30ish HP?
I'd like to keep the current SC, but I understand the trade off. I also looked at increased cooling by swapping out the Heat Exchanger and tank. Seems like a meaningful upgrade given the poor cooling of the stock one especially if I'm going to push the stock system harder.
Looking at Kong's porting page it seems I have two options there. Regular porting or X-port. Sounds like the X-port from what I can derive can deliver more power, but is linked to cracking the case and getting a cam, etc. So I have some things to think about there.
As for budget, idk, I was hoping to stay under 10k this year, but I first have to figure out what exactly it is I want to do on the first round or do I wait, save up and go for it all the next year.
Should I just do the regular SC Port, TB, pulley, CAI and maybe LTH this year and then see where i'm at. Then maybe next year do the cam, X-port, heat exchanger, etc. Or is that going to cost me alot more in the long run?
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Resonators won't do anything to lower the volume since they don't have packing in them, they are simply designed to tame resonant frequencies which can cause some raspiness or drone. For people that want headers, the quietest option is going to be leave the stock suitcase muffler since its the largest muffler available for these cars. It will sound relatively tame at part throttle with the valves closed but it will certainly be much louder with the valves open and at WOT.
The Kong X-port is more efficient, but you will shift the torque curve upwards because to gain that extra efficiency, the X-ported blower has much more material removed internally which affect the lower rpm efficiency and power curve. You don't need a cam to run the X-port blower.
As for your future plans, I certainly would not pay for a Kong ported blower and then pay for the X-port again later. I would do it one way or the other once and be done with it. There's nothing wrong with the standard Kong porting, and pullies can certainly get you to 700whp without any issues. The biggest issue is just that staying on 93 octane at 700whp means that you will have to spin the blower a bit harder and it will generate more heat which is why you will absolutely need headers and upgraded heat exchangers and a auxiliary cooling tank.