Vivid Racing Turbo Kit #2 Underway
#49
06-15-2011, 11:38 AM
Uh, is the air intake really being buried way back in the engine compartment? I guess with the intercooler the intake air temp going in is not as critical but that still seems like a very hot location to pull air from...
#52
06-17-2011, 05:12 PM
Flashin has really made this easy. Loaded the file, and it fired up, no hestiation, loping, or anything. Did a quick lap around the block and she idled and shifted fine. Next stop, the dyno!
Last edited by vividracing; 02-01-2014 at 08:31 PM.
#55
06-19-2011, 06:23 AM
OK, dumb questions from a newb, why would you put the catalysts between the header and the turbo? Seems like that would dramatically increase heat into the turbo, and heat transfer into the intake stream, reducing overall performance significantly. Seems like you would want the cats downstream of the turbo.
Are you going to run a pyrometer? Will there be a required cool-down temp? This is sort tied into the cat question.
My Porsche is not turbo, and I have virtually no turbo experience on gasoline engines, but I do know a thing or two about turbo diesels. One of the major problems with turbo diesels is "coking" the turbo, ie cessation of oilflow through the turbo bearings when the turbo is still hot enough to damage the oil. Causes oil to turn into something very unhappy, resulting in damage to the turbo bearings and early turbo failure. General wisdom is to idle until turbo inlet temps are 300 deg or lower to avoid potential for coking the turbo. Im not sure this is even possible with a catalyst running at some hellish temp on the inlet.
??
Are you going to run a pyrometer? Will there be a required cool-down temp? This is sort tied into the cat question.
My Porsche is not turbo, and I have virtually no turbo experience on gasoline engines, but I do know a thing or two about turbo diesels. One of the major problems with turbo diesels is "coking" the turbo, ie cessation of oilflow through the turbo bearings when the turbo is still hot enough to damage the oil. Causes oil to turn into something very unhappy, resulting in damage to the turbo bearings and early turbo failure. General wisdom is to idle until turbo inlet temps are 300 deg or lower to avoid potential for coking the turbo. Im not sure this is even possible with a catalyst running at some hellish temp on the inlet.
??
#56
06-20-2011, 05:39 PM
Ran the car today and for the 91oct file, this kit still did very good at 5.5psi of boost! Video and results to be posted later.
To the above question, its just like on the OEM where the cats are between the header and the muffler. Other cars like the Subaru WRX have a cat on the uppipe, no big deal.
To the above question, its just like on the OEM where the cats are between the header and the muffler. Other cars like the Subaru WRX have a cat on the uppipe, no big deal.
#57
06-21-2011, 11:34 AM
Finished the dyno and the car did VERY well as expected. This 91octane file has less timing then the 93 obviously. Also it is SUPER hot here. We kept the boost at around 5.5psi. The car went from 291awhp stock to 385awhp with the Turbo kit 
#59
06-21-2011, 04:26 PM
OK, dumb questions from a newb, why would you put the catalysts between the header and the turbo? Seems like that would dramatically increase heat into the turbo, and heat transfer into the intake stream, reducing overall performance significantly. Seems like you would want the cats downstream of the turbo.
Are you going to run a pyrometer? Will there be a required cool-down temp? This is sort tied into the cat question.
My Porsche is not turbo, and I have virtually no turbo experience on gasoline engines, but I do know a thing or two about turbo diesels. One of the major problems with turbo diesels is "coking" the turbo, ie cessation of oilflow through the turbo bearings when the turbo is still hot enough to damage the oil. Causes oil to turn into something very unhappy, resulting in damage to the turbo bearings and early turbo failure. General wisdom is to idle until turbo inlet temps are 300 deg or lower to avoid potential for coking the turbo. Im not sure this is even possible with a catalyst running at some hellish temp on the inlet.
??
Are you going to run a pyrometer? Will there be a required cool-down temp? This is sort tied into the cat question.
My Porsche is not turbo, and I have virtually no turbo experience on gasoline engines, but I do know a thing or two about turbo diesels. One of the major problems with turbo diesels is "coking" the turbo, ie cessation of oilflow through the turbo bearings when the turbo is still hot enough to damage the oil. Causes oil to turn into something very unhappy, resulting in damage to the turbo bearings and early turbo failure. General wisdom is to idle until turbo inlet temps are 300 deg or lower to avoid potential for coking the turbo. Im not sure this is even possible with a catalyst running at some hellish temp on the inlet.
??
That seriously has to be the least dumb newb question ever!
