HTA & Twin-Scroll
#33
Evolved Member
iTrader: (12)
You can definitely have the turbo re-done by FP and turned into a HTA. This is what i wanted to try with Mynes Performance Top Mount Twin Scroll Kit. Im just waiting on the dough but i know itll be a sick set up. Great low and mid with the ts, and hta. Nevermind the increased top end performance and spool with the Top Mount.
#35
Gosh a lot of hype with pretty minimal amount of results.
a) DB himself said HTA does not offer any peak gains
b) nobody has tested swapping a PT .63 a/r for a PT .63 A/R GT35R except me
a) DB himself said HTA does not offer any peak gains
b) nobody has tested swapping a PT .63 a/r for a PT .63 A/R GT35R except me
#38
Evolved Member
iTrader: (12)
From what I have read regarding Peakboost's top mount kit help keep the turbo spooled when in higher RPM's because the *decreased* back pressure from the long runners. I believe it was called HVS. High Velocity Something ill have to get back to you on that one.
edit: head in the clouds after re-reading my own and ted b's post. And i went and looked back and in on another post concerning the 37R Top Mount and E-85 and how the top mount effects spool with the long runners.
edit: head in the clouds after re-reading my own and ted b's post. And i went and looked back and in on another post concerning the 37R Top Mount and E-85 and how the top mount effects spool with the long runners.
Last edited by Evo8Emperor; Nov 19, 2007 at 11:00 AM.
#40
Evolved Member
iTrader: (83)
PeakBoost website says: " High Volume Solution allows for less manifold backpressure in the top end of the rpm band"
http://cheapturbo.stores.yahoo.net/peevhvsma.html
http://cheapturbo.stores.yahoo.net/peevhvsma.html
#43
EvoM Guru
iTrader: (6)
Yes, exhaust backpressure is greatest at the hp peak. What I was alluding to is the realization that increasing the volume of the runners or turbine housing sufficiently enough to alleviate pressure up top reduces it everywhere, including ranges that impact spool characteristics.
#44
Account Disabled
iTrader: (7)
Hey! I have a few questions regarding 35R turbos. First of all, these new HTA ones, are they similar or comparable to twin-scroll? Secondly, if I were to get an HTA35R from Forced Performance or Buschur, would I be able to use that with a Full-Race Twin-scroll manifold? And lastly, could someone list out to me the OTHER parts I would need to complete the install (oil lines, gaskets, etc., etc.)
That being said, twinscroll setups normally dont "like" mismatch turbos, so it might work well, and it might not. Hopefully we can do a back to back test of twinscroll 35R vs twinscroll HTA35R on Evodan's car
me and geoff are dynoing my 30r twin scroll and then putting a 35r twin scroll on and re dynoing the car. we ''MIGHT'' also send it in for the HTA mod and redyno again and see if it dose anything. depends on funds and time. but the 30 to 35r comparison will be done....
Yes, exhaust backpressure is greatest at the hp peak. What I was alluding to is the realization that increasing the volume of the runners or turbine housing sufficiently enough to alleviate pressure up top reduces it everywhere, including ranges that impact spool characteristics.