Originally Posted by AWD Motorsports

I realize we would need to really compare 2 kits on the same exact car and dyno at the same time but something that is told to be Definitively better shouldnt have to split hairs to shows its excellence IMO.. Sure a couple hundred RPM here or there how can we fuss but when a SINGLE scroll turbo setup spools IDENTICAL to a TWIN SCROLL setup said to be LEAPS AND BOUNDS better one must question things.. Thats what i am doing.. Questioning things.. I recently took some interest in these TS setups as we have been actively road racing much more.. I have spoken with Shearer about small runner T3 manifolds for single scroll and how we can make them spool like TS setups and still have the big top end power..

Which brings me to this evening.. I came across a dyno sheet for a TS setup from a car which i would say wasnt a BUDGET build probably so thought i would dig thru some sheets for comparisons.. Below is a TS 4088 Turbo 2.3L setup..



Now here is a Single Scroll T3 6262 Setup on 2.3L motor..



now these appear to be near identical up to 650hp which is where we stopped with this car either due to lack of fuel or just didnt want to push the car.. As we already know the 6262 can make 750+hp..

Now doesnt this simple single scroll , 1 wastegate setup appear to have the same power band??? Not to mention is revving 8000+ and not dropping much power where as the other setup is dropping power at 7500.. We also know for a fact the single scroll HTA 82 spools even faster than 6262 so can you imagine that turbo on this setup..

Id like to see some more dyno sheets that support the TS ultra spool theory.. I know TedB has some of them I am sure.. Ill also see if i have any more 2.3L dyno sheets so we can compare further..

Mike

Originally Posted by tutuur

I'm not trying to question anyones professionalism here but has anyone even tried tuning the cams with a twin scroll turbocharger on?

A well tuned setup on an ss turbo could not be as well tuned anymore by just putting a ts manifold and turbo on?

I am a beleiver of ts btw, not experienced it for myself yet but the next setup is deffo gonna be a ts setup

Arthur