When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
...Åke is testing some ideas with the S4 throttle body element in Sweden. A lot of welding, porting, and remachining of the throttle body. He will do a couple of throttle bodies at different levels of modification, and the flow bench and some formulas will then tell us what level of modification will be cost effective from hp/$ perspective.
Mainly because I'm not sure I could get it to work with the turbo system plenum box and the MAF housing. Also, there's some chance that the flappy-closed mode (which requires specific zip tube shape, length, and diameter of the throttle body) is going to be beneficial to me at the rpm area where the turbines are about to spool. This throttle body that Ake's working on will retain all the resonance characteristics of the stock manifold while (hopefully) flowing significantly more at high rpms and in the flappy-open mode. Finally, I'm just a curious guy and I'm interested in what Ake can do to the stock throttle body.
John got the fat pipe muffler hung up. It’s built like brick house, by the way. The first visual below. By the way, can you imagine what kind of jig saw pipe puzzle it’s to get two 3.5” pipes snaked in there to feed that muffler?
Do we need a screen on that tail pipe such that our dog doesn't climb inside the muffler during cold afternoons? It would be really embarrassing to be down on power because of a dead "gas-chambered" dog in the rear muffler! A mouse could make it up the exhaust all the way to the cats (pun intended) or, with the test pipes installed, all the way to the turbine. That would be arude awakening, have the early EVO spin up that turbine on a sleeping mouse. Gives a new meaning to "better mouse trap"...
Day to day. Some days I like her, some days I’d just like it gone.
What I do like is the way the new turbo iteration is shaping up. So does John, I think he’s going to take off and sell the system currently on his car and install a system that is configured like the one in my car. The system currently on John's car was designed to deliver huge torque by 2500rpm, the system on my car was designed to prioritize high power in the 4000-6000 rpm range. The small turbo system has the below compressor maps which indicate that they can do about 550 rwhp with stock S4 engine and about 650 rwhp with a low compression engine:
11-18-2017, 10:06 AM
In the meanwhile..,
