Originally Posted by Crossfire451
this looks great and is what I've been looking for. As far as muffler choices go I have looked at cherrybomb Vortex
#88115 or the Elite
#7553 there is also Thrush #17637 and
#17553 Dynomax ultra-flo x muffler,
hopefully one of these might fit. I have found the Thrush for $30 online. These type mufflers could also negate the need for a cross over pipe depending on the internal design of the muffler. The H pipe would increase rigidity and stability of the system though. Maybe, bar stock could be used to reduce expense. Would it be possible to set-up a picture comparing a stock system versus your new system? In another question, I saw in another thread you mentioned a 3.8L engine, can you elaborate? Keep up the great work.
The h-pipe isn't for stability. Its for the equalizing the scavenging effect. I hope that everyone is aware of the fact you SHOULDN'T introduce an h-/x-pipe into your exhaust or change manifolds to headers without a tune due to the change in scavenging effect and pressure areas in the heads.
Renntech makes 2 3.8L builds that I'm aware of, although I'm not sure if they related to the ones TVT is working on. Renntech's 3.8L is offered in 2 packages, a 262hp/294tq setup and a 300hp/306tq setup and they are extremely expensive. I'm not sure on the specs of either though other than the power outputs.
TVT's engines are a bit of a mystery to me and best answered by TVT themselves. And i have several questions about it myself. What they've told us so far is that its a 3.8L, iron-sleeved, aluminum block with forged pistons and a c/r of 12:1 or 9.5:1 and several different trims and goodies. My main question is about how long the engine with last with a c/r of 12:1 and what kind of gas they plan on using. Because generally speaking, and I admit there are several engines that are exempt of this statement and this may be one of them, you can't run a c/r higher than 10.5:1 on 93 octane UNLESS you started retarding the timing or run extensive cooling due to the constraints of the octane rating of the gas.