Mr. Buschur: HTA 35R with .63 hotside instead of .82?
Jan 29, 2008, 08:38 AM
#20
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Understand that this is at 26 psi. Spikes up to 29, but settles to 26. Look how it climbs to 29 psi. This thing comes on like a monster. I'm still pending a race gas map. I may just need to go to 1200cc intrs.
I'm not saying i have anything close to a world of experiance. I just don't know of a turbo as big as a 35R that spools this fast. 2.3 or not.
Last edited by LT1runner; Jan 29, 2008 at 08:42 AM.
Jan 29, 2008, 08:39 AM
#21
Smogrunner, sorry, I never saw this post. Anyone who wants my attention in a post just send me a PM with a link and I'll be glad to stop by.
First, if you use the Tial or Garrett ported shroud compressor covers you will NOT experience any surging with the HTA35r.
Next, the .63 housing works very good with the 35r's. Depending on the build we are doing we will sometimes use the .82 housing. I have now tested a few different header designs and tested 4-5 different turbine housings with the HTA35r.
Overall I'd say the .63 housing works the best and a 2.5" outlet with a 2.5" 02 housing doesn't seem to hurt the power at all compared to the 3" stuff. The 3" does however make fabricating the housing, nicely, in one piece much easier.
It was said that most of the charts posted from us are on the .82 housing. That could seem true simpy because my car has a ton of charts posted BUT there are some kick *** charts posted with the .63 housing too. We've made 520 whp here on the .63 housing on 93 octane. Best ever was on Peter's car at 547 whp on the .82 but the car is also set up just like mine with nothing left out.
First, if you use the Tial or Garrett ported shroud compressor covers you will NOT experience any surging with the HTA35r.
Next, the .63 housing works very good with the 35r's. Depending on the build we are doing we will sometimes use the .82 housing. I have now tested a few different header designs and tested 4-5 different turbine housings with the HTA35r.
Overall I'd say the .63 housing works the best and a 2.5" outlet with a 2.5" 02 housing doesn't seem to hurt the power at all compared to the 3" stuff. The 3" does however make fabricating the housing, nicely, in one piece much easier.
It was said that most of the charts posted from us are on the .82 housing. That could seem true simpy because my car has a ton of charts posted BUT there are some kick *** charts posted with the .63 housing too. We've made 520 whp here on the .63 housing on 93 octane. Best ever was on Peter's car at 547 whp on the .82 but the car is also set up just like mine with nothing left out.
Jan 29, 2008, 12:03 PM
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So what do you think the spool difference is for the .63 to .82 I am debating between a 20glt and the hta35r(I know it is a big difference) anyhow I am running E-85 now so I would plan on running 26-29lbs of boost 90% of the time.
Jan 29, 2008, 12:51 PM
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Oh yeah. A very slight turn to the left or right, and the car wants to go sideways. Man it's fun, but don't be jealous, just get a HTA35R, get it on your car, and you too can have the fun I'm having. Does any have a boost plot for a Green or even a stock turbo. If so please post to see/compair to my 35R plot.
Jan 29, 2008, 03:30 PM
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i'd like to hear the answer to this too.
Jan 29, 2008, 04:53 PM
#29
I haven't tested back to back on the .63 and .82 housings. All the housings I've tested over the last month were .82 or larger. I'd compare logs from different cars but that is never a good fair comparison. I will guess though based on what I have seen over the last month of extensive testing on the larger housings. I would have to guess the .63 on a 2 liter is going to make 20 psi around 200 rpm sooner.
I know the next question is going to be how much more power does the .82 make, unfortuneately I cannot answer that with any accuracy. Part of me says none, part of me says up to 20 whp.
I tested the 1.06 housing. The car made more top end power with less boost than it ever had before. BUT the midrange was not good, the losses in torque were not worth the trade off for ME.
I figure by the time this is all done I will be able to build one bad *** "something". I have so many ideas running through my head for my next project I'm not sure what I will end up doing.
I know the next question is going to be how much more power does the .82 make, unfortuneately I cannot answer that with any accuracy. Part of me says none, part of me says up to 20 whp.
I tested the 1.06 housing. The car made more top end power with less boost than it ever had before. BUT the midrange was not good, the losses in torque were not worth the trade off for ME.
I figure by the time this is all done I will be able to build one bad *** "something". I have so many ideas running through my head for my next project I'm not sure what I will end up doing.
Jan 29, 2008, 06:22 PM
#30
I haven't tested back to back on the .63 and .82 housings. All the housings I've tested over the last month were .82 or larger. I'd compare logs from different cars but that is never a good fair comparison. I will guess though based on what I have seen over the last month of extensive testing on the larger housings. I would have to guess the .63 on a 2 liter is going to make 20 psi around 200 rpm sooner.
I know the next question is going to be how much more power does the .82 make, unfortuneately I cannot answer that with any accuracy. Part of me says none, part of me says up to 20 whp.
I tested the 1.06 housing. The car made more top end power with less boost than it ever had before. BUT the midrange was not good, the losses in torque were not worth the trade off for ME.
I figure by the time this is all done I will be able to build one bad *** "something". I have so many ideas running through my head for my next project I'm not sure what I will end up doing.
I know the next question is going to be how much more power does the .82 make, unfortuneately I cannot answer that with any accuracy. Part of me says none, part of me says up to 20 whp.
I tested the 1.06 housing. The car made more top end power with less boost than it ever had before. BUT the midrange was not good, the losses in torque were not worth the trade off for ME.
I figure by the time this is all done I will be able to build one bad *** "something". I have so many ideas running through my head for my next project I'm not sure what I will end up doing.
Scorke