[Edit: Part way through this build VAST bagged out on me and I am now being supported by EPL]
I decided that while I enjoyed the TiAL 605 setup I thought I might find a better match to my driving style with the FrankenTurbo's.
The TiAL 605 kit is off my car, sold, and shipped. The F4H's are in place and in the process of doing the tuning. My hardware remains pretty similar to what I used with the 605's. Parts as follow:
VAST 90mm 1-piece intake (replacing stock filter/EPL 85mm MAF housing/RS4 accordion)
RS4 Y-pipe
TiAL inlets
FrankenTurbo F4H's w/ K03 wastegates (replacing TiAL 605's)
ER IC's
APR Bipipe
Later model intake manifold
034 phenolic spacers
60lb Bosch EV14's (replacing 72lb EV14's)
MBC+N75 (replacing straight N75)
VAST p/p exhaust manifolds
ASP 3" downpipes
034 3.5" single exhaust (replacing Milltek 2.25" Superdual)
VAST tuned ECU (replacing EPL tuned ECU)
Still very early in the tuning process. I'm liking the faster boost onset of the FT's, though I don't see much difference from my old APR Stg3 K04's. Can't say much about the top end since the boost is still something that needs to be ironed out.
not everyone likes going in a straight line. If road racing is his goal then having the faster spooling f4h make way more sense to have. Instead of hoping you can keep in the powerband through a tight corner.
I only lurk here but I'm going with FrankenTurbo's and ditching my ko4s. Due to engine issues I'm pulling my motor and giving these a try. I'm going to run my epl stg 3 fueling and then custom tune. I've heard more than once about wastegate issues. Can anyone chime in?
I know you guys automatically think its crazy but like Jeff said its what caters towards his driving style. Jeff's a smart guy and I respect his decision; and I belive he has some plans in mind with the money that's been saved for the car in the picture.
I only lurk here but I'm going with FrankenTurbo's and ditching my ko4s. Due to engine issues I'm pulling my motor and giving these a try. I'm going to run my epl stg 3 fueling and then custom tune. I've heard more than once about wastegate issues. Can anyone chime in?
I know Wicked Motorsports has modified wastegates on Ft car. Other than that someone involved with a vendor out east mentioned swaping in ko4 wastegates because FT's were junk. So take it with a grain of salt. I haven't recieved mine from Vast yet so I have nothing to add. Anyone else?
I've heard about the wastegate issues with the RP K04s, or whatever the old chinese knockoffs were that failed repeatedly. But I've never seen anything about Frankenturbo wastegates failing. Anyone have links?
-Tim
'08 VW R32, Candy White - stock
'02 A4 1.8tmq Avant, Dolphin Grey - engine swap in the future
When RP's failed everyone screamed about it. I've haven't heard anything about FT problems outside of some install issues leading to failure, which applies to all turbo's. There was a post on here a couple of weeks back about someone doing a stg 3 build and having their wategates reworked by Wicked. He never responced to as why.
went through the whole annoying process of swapping turbos, for a couple hundred rpm better spool and less power? I join the rest of folks who are confused. Why all the work just for that? Seems a piece of the puzzle is missing.
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Mike at Wicked has all the contact info he needs if he encounters a problem. Since my phone isn't ringing I'm going to guess he wanted a preload higher than possible on the turbos he had. Tials run 14psi crack pressure, for example. The crack pressure specified by (forum sponsor) VAST is lower than that.
went through the whole annoying process of swapping turbos, for a couple hundred rpm better spool and less power? I join the rest of folks who are confused. Why all the work just for that? Seems a piece of the puzzle is missing.
I'm giving the guy the benefit of the doubt. Boost logs are one thing but dynamic response is another. I've seen a video or two and been told by a reliable source that 605 cars can often get the initial jump on a 770 car even though "on paper" the boost response curves look similar. The bigger turbo takes longer to spool, even though if you put it in a high gear and stand on the pedal it makes pretty good boost at, say, 3000 RPM.
i have only been in my RS6 car, and my APR tuned k03 car.. spool is different, but even in those two completely different categories, not enough to justify losing 60whp for some quicker spool. i was driving my car today, and just thought about spool time, and the balance and what is needed in traffic acceleration. i wot shifted at 3000 rpms everytime, and was so far in front of the rest of traffic it was stupid. now if tracking the car and spool time needed is more application specific, i cant argue or discuss about that.
to each his own.
stage 3+ dyno-tuned by EPL
AWE smic, OEM RS6's, CM Fx850 twin
JHM ss, linkage, DTS, Devils Own Meth
034 anchors everywhere, custom 4" single
I'm giving the guy the benefit of the doubt. Boost logs are one thing but dynamic response is another. I've seen a video or two and been told by a reliable source that 605 cars can often get the initial jump on a 770 car even though "on paper" the boost response curves look similar. The bigger turbo takes longer to spool, even though if you put it in a high gear and stand on the pedal it makes pretty good boost at, say, 3000 RPM.
of course they get the jump, but on top end there is no comparison. just like my RS6's.. im sure id get a good jump on a lot of 605 cars, but the top end the 605's will get me. will it affect the outcome of a race?? not sure.. i still havent raced a 605 car.. (which i would love to do. pm me if close and would like to run in mexico)
stage 3+ dyno-tuned by EPL
AWE smic, OEM RS6's, CM Fx850 twin
JHM ss, linkage, DTS, Devils Own Meth
034 anchors everywhere, custom 4" single
I only lurk here but I'm going with FrankenTurbo's and ditching my ko4s. Due to engine issues I'm pulling my motor and giving these a try. I'm going to run my epl stg 3 fueling and then custom tune. I've heard more than once about wastegate issues. Can anyone chime in?
If you dont know what happened and why then Dont spread rumors.
Anchor Audi Technician
DM Technik Tuned BB 2001.5 S4 6mt ** ER's, Rostens, Frankenturbos, Tubi Mani's...
Ben Swann Tuned Black 1990 200 Turbo avant 5mt ** Turbo-xs Bov, Cherrybomb, Catless...
So yeah you must not know much about frankenturbos... They have been more reliable so far than bw's it seems. Which are also china turbos now.
But yeah i dont get why he did that either. Not cuz they are chineese tho...
Frankenturbos have been out for the B5 S4 like a year or less. In no way have they proven anything one way or the other vs BW's, which have thousands of turbos running on cars for 10+ years. I hope they prove to be as reliable as they are good in the performance realm, but that comes with time.
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Originally Posted by AMC
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