Fp billet 7 blade vs garret gtx 11 blade compressor wheel? Which is better?
Aug 21, 2013, 05:55 PM
#1
Fp billet 7 blade vs garret gtx 11 blade compressor wheel? Which is better?
Fp uses the double billet 7 blade design and Garrett uses the new single 11 blade billet wheels. If both turbos were the same side which would is better? Makes more power? Spools faster?
Fp billet 7 blade vs garret gtx 11 blade compressor wheel? Which is better?
Fp hta gt3582r vs garret gtx3582r ?
Fp hta gt3076r vs Garrett gtx3076r
Fp billet 7 blade vs garret gtx 11 blade compressor wheel? Which is better?
Fp hta gt3582r vs garret gtx3582r ?
Fp hta gt3076r vs Garrett gtx3076r
Aug 21, 2013, 10:35 PM
#2
Evolved Member
In all cases the GTX is a "bigger" compressor as far as I can tell, so laggier but flows more. In the case of the 3076R comparison I have the impression the HTA > GTX as the HTA pushes to the limit of the GT30 hotside anyway, as far as I am concerned. In the case of a GTX3576R vs HTA3576R the GTX may have a flow advantage but with the GT30 hotside I consider the GTX3076R a turbo that is quite a bit laggier than the HTA, but with no additional flow.
In regards to the GTX vs HTA 3582 things change a bit, the HTA3582 *ALSO* will be quite a bit more responsive than the GTX - but the GT35 hotside has a bit of room to move over the flow the HTA3582 can provide (hence the HTA3586). I have the impression from results I've seen that the GTX3582R is probably closer in flow to the HTA3586 than the HTA3582, and response somewhere in between the two - which makes the GTX a bit of a different beast.
As such, I think the HTA3076R > GTX3076R overall as a product for that power/response area.
The GTX3582R is more of an alternative to an HTA3586, and I have the feeling that the GTX may actually provide a marginally better compromise between power and spool than the HTA3586 - however if you don't need quite that kind of power then the HTA3582 is definitely much more responsive and a capable upgrade over the normal cast GT3582R.
Just my thoughts
In regards to the GTX vs HTA 3582 things change a bit, the HTA3582 *ALSO* will be quite a bit more responsive than the GTX - but the GT35 hotside has a bit of room to move over the flow the HTA3582 can provide (hence the HTA3586). I have the impression from results I've seen that the GTX3582R is probably closer in flow to the HTA3586 than the HTA3582, and response somewhere in between the two - which makes the GTX a bit of a different beast.
As such, I think the HTA3076R > GTX3076R overall as a product for that power/response area.
The GTX3582R is more of an alternative to an HTA3586, and I have the feeling that the GTX may actually provide a marginally better compromise between power and spool than the HTA3586 - however if you don't need quite that kind of power then the HTA3582 is definitely much more responsive and a capable upgrade over the normal cast GT3582R.
Just my thoughts
Aug 22, 2013, 12:36 AM
#3
hta76 and reds have 54.8mm inducer 76mm exducer 59lbs/min
gtx71 54.1/71 57lb
gtx76 58/76 64lb
gt35r 61.4/82 67lb
hta3582 59/82 67lb
hta3586 62/82 75lb
gtx35 62.4/82 76lb
if equal size 14 blades spools faster. (more paddles per shaft rev)
11 blade would heat air less at high pressure ratios, but good intercooler would likely mask any temp difference between the two designs. I prefer FPs design. dual 7 blade wheels. They are really sweet design and that why they use it in all FP turbos now.
hta82 spools about 250 rpm faster than standard 35r. hta86 spools about 250rpm slower than hta82. not enough data out to know where gtx wheels fall spool wise.
the 30r turbine is a fussy wheel. really bad results when in wrong turbine housings. when in good housings it works really well and will spool faster that 35r turbine. the whole gtx3576 is a better choice than gtx3076 is all based on a couple of really poor back to backs. one on evom of which there was a cat in place with 30 wheel. switch to 35 no cat. buschur made 600whp/600wtq (on his low reading dyno) with hta3076 in his forward facing setup with tial 82.
gtx71 54.1/71 57lb
gtx76 58/76 64lb
gt35r 61.4/82 67lb
hta3582 59/82 67lb
hta3586 62/82 75lb
gtx35 62.4/82 76lb
if equal size 14 blades spools faster. (more paddles per shaft rev)
11 blade would heat air less at high pressure ratios, but good intercooler would likely mask any temp difference between the two designs. I prefer FPs design. dual 7 blade wheels. They are really sweet design and that why they use it in all FP turbos now.
hta82 spools about 250 rpm faster than standard 35r. hta86 spools about 250rpm slower than hta82. not enough data out to know where gtx wheels fall spool wise.
the 30r turbine is a fussy wheel. really bad results when in wrong turbine housings. when in good housings it works really well and will spool faster that 35r turbine. the whole gtx3576 is a better choice than gtx3076 is all based on a couple of really poor back to backs. one on evom of which there was a cat in place with 30 wheel. switch to 35 no cat. buschur made 600whp/600wtq (on his low reading dyno) with hta3076 in his forward facing setup with tial 82.
Aug 22, 2013, 09:38 AM
#4
There is a guy far more in the know on this board than you or I that said the GTX3576R is equal on spool to the GTX3076R on spool and makes a decent amount more power. I’m pretty sure his info is solid and not from some “poor” comparison.
As 94AWDcoupe pointed out though, if you want to compare GTX to HTA, you gotta pay attention to more than just the names.
One more FP turbo to consider:
HTA3073R - 54/73 - 54lb/min
Best comparisons I think you could likely make though:
HTA3073R and HTA3076R vs. GTX3071R
HTA76R for a slight power gain, HTA3073R for slightly better spool.
HTA3582R vs GTX3576R
Slight power advantage to the HTA wheel with response likely going to the GTX.
Simple fact here, no turbine housing can make up for the low flow capacity of the GT30 wheel. The bigger the housing, the lower the efficiency anyway so you are really going the wrong way stuffing the small wheel in a giant housing to make the GT30 work with a compressor wheel over 60lb/min.
HTA3586R vs. GTX3582R
Not a clue how each would come out here as the GTX wheel flows like crazy but also has a smaller exducer. It seems like the aero was targeted for all out power though and this has hurt response. The HTA seems to be designed aerodynamically around spool improvements but is larger to reach the flow targets.
Realistically though, these are all great turbochargers and the difference in performance between them is likely to be very minimal. I personally prefer a turbo that has come straight from Garrett. On the other hand, I've used 3 FP turbochargers and all three were great turbochargers. You really can’t go wrong with either.
As 94AWDcoupe pointed out though, if you want to compare GTX to HTA, you gotta pay attention to more than just the names.
One more FP turbo to consider:
HTA3073R - 54/73 - 54lb/min
Best comparisons I think you could likely make though:
HTA3073R and HTA3076R vs. GTX3071R
HTA76R for a slight power gain, HTA3073R for slightly better spool.
HTA3582R vs GTX3576R
Slight power advantage to the HTA wheel with response likely going to the GTX.
Simple fact here, no turbine housing can make up for the low flow capacity of the GT30 wheel. The bigger the housing, the lower the efficiency anyway so you are really going the wrong way stuffing the small wheel in a giant housing to make the GT30 work with a compressor wheel over 60lb/min.
HTA3586R vs. GTX3582R
Not a clue how each would come out here as the GTX wheel flows like crazy but also has a smaller exducer. It seems like the aero was targeted for all out power though and this has hurt response. The HTA seems to be designed aerodynamically around spool improvements but is larger to reach the flow targets.
Realistically though, these are all great turbochargers and the difference in performance between them is likely to be very minimal. I personally prefer a turbo that has come straight from Garrett. On the other hand, I've used 3 FP turbochargers and all three were great turbochargers. You really can’t go wrong with either.
Aug 22, 2013, 10:56 AM
#5
I have special interest in 45-65lb turbos. thats all I have ever run. they offer the best fun for how I use my cars.. I have run 30r configured six different ways. 20g configured a dozen different ways. I have done more back to back testing than most shops on here. I have built turbos no one else has tried. I stand strong on the 30r observations. I am sure I have done sufficient testing to know what I am talking about.
I have never seen a post on hta 3073. Dont think FP has made many of those if any. thats why I left it off. that turbo would need a ported shroud. wouldnt be easy or cheap to get that made.
did I mention I have a special interest in turbos?
I have never seen a post on hta 3073. Dont think FP has made many of those if any. thats why I left it off. that turbo would need a ported shroud. wouldnt be easy or cheap to get that made.
did I mention I have a special interest in turbos?
Aug 22, 2013, 11:41 AM
#7
the HKS 7460 is 50lb turbo give or take 1lb.
comp = 52.6/74 dual 6 blade. its basically a tweaked 20g cast wheel.
exhaust wheel = 61/55 extremely close to 6sl2 turbine but with original mitsu 12 blade design.
compressor housing is smaller than evo 8. they were after good response.
turbine housing is a tad smaller than mistu 9.8cm. again after response.
pretty much the same spec as a BBK full. really fun turbo for 2.0. both turbos are hard to get your hands on a used one. I think only 200 hks were ever sold here in the states. makes it really rare. the bbk fulls seem to last minutes on the forums when they are priced right. most people who have one are interested in fun street cars or good autocross cars. as such they arent on that never ending "I need more power' train. they hang onto them.
comp = 52.6/74 dual 6 blade. its basically a tweaked 20g cast wheel.
exhaust wheel = 61/55 extremely close to 6sl2 turbine but with original mitsu 12 blade design.
compressor housing is smaller than evo 8. they were after good response.
turbine housing is a tad smaller than mistu 9.8cm. again after response.
pretty much the same spec as a BBK full. really fun turbo for 2.0. both turbos are hard to get your hands on a used one. I think only 200 hks were ever sold here in the states. makes it really rare. the bbk fulls seem to last minutes on the forums when they are priced right. most people who have one are interested in fun street cars or good autocross cars. as such they arent on that never ending "I need more power' train. they hang onto them.
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Aug 22, 2013, 12:11 PM
#8
I have special interest in 45-65lb turbos. thats all I have ever run. they offer the best fun for how I use my cars.. I have run 30r configured six different ways. 20g configured a dozen different ways. I have done more back to back testing than most shops on here. I have built turbos no one else has tried. I stand strong on the 30r observations. I am sure I have done sufficient testing to know what I am talking about.
I have never seen a post on hta 3073. Dont think FP has made many of those if any. thats why I left it off. that turbo would need a ported shroud. wouldnt be easy or cheap to get that made.
did I mention I have a special interest in turbos?
I have never seen a post on hta 3073. Dont think FP has made many of those if any. thats why I left it off. that turbo would need a ported shroud. wouldnt be easy or cheap to get that made.
did I mention I have a special interest in turbos?
I believe the HTA3073R was the same price as the HTA3076R when I called long ago about it. If you are doing an upgrade, you just need a GT3071R to start from instead of the GT3076R. You are correct though, I can't reference anybody using one. Just on paper it seems like a faster spooling option to the GT3076R. At 54 lb/min though, it hits kind of a weird spot any more as you have 67mm wheels hitting nearly 50 lb/min and the 6mm difference in size should make for a decent gain in response to be the better option over the extra 4 lb/min.
50lb/min is GT28 turbine territory... Actually, if you compare flow, the GT28 will flow almost as much as the GT30 turbine wheel. The GTX3067R though is a curious option as well as it's a better mechanical match than the GTX2867R. But I digress, <50 lb/min turbos really don't interest anybody here since the IX turbo can do like 47 lb/min.
50-60 lb/min is my personal preference as well as a well setup car maxing out a 60 lb/min turbo can hand 99% of the cars out there it's *** any day of the week.
Aug 22, 2013, 02:40 PM
#10
I already did that. Look at my signature. I went from a open Scroll .63 gt3576r to a t4 1.06ar divided twinscroll hta gt3582r. The twin scroll set up with the much bigger turbo spooled faster and made more power.
Last edited by riceball777; Aug 23, 2013 at 11:18 AM.
Aug 22, 2013, 04:12 PM
#11
BBK full uses 10.5 housing I believe with similar specs to HKS turbo. So, little less response/spool but better flow up top.
Hopefully the 71HTA will serve me well next season. I like the spool prospects of it and hope the compressor design will make it more tolerable than the stock turbo.
Going to run the rest of this year on the stock turbo which I feel is more of a surgey, on/off switch that tapers too quickly for how hard it comes on. Granted, the pressure ratio I road course at should help with those issues.
Aug 23, 2013, 06:11 PM
#14
Says the guy who is going to skew all further results with a funky *** auto tranny that no one else will have 
lol Your the best, just wish you tapped the true potential of the gt30 and gtx3576 before going bigger. If I can do 547whp at ER surely there is plenty more left in your setups.
lol Your the best, just wish you tapped the true potential of the gt30 and gtx3576 before going bigger. If I can do 547whp at ER surely there is plenty more left in your setups.
Aug 23, 2013, 06:53 PM
#15
the HKS 7460 is 50lb turbo give or take 1lb.
comp = 52.6/74 dual 6 blade. its basically a tweaked 20g cast wheel.
exhaust wheel = 61/55 extremely close to 6sl2 turbine but with original mitsu 12 blade design.
compressor housing is smaller than evo 8. they were after good response.
turbine housing is a tad smaller than mistu 9.8cm. again after response.
pretty much the same spec as a BBK full. really fun turbo for 2.0. both turbos are hard to get your hands on a used one. I think only 200 hks were ever sold here in the states. makes it really rare. the bbk fulls seem to last minutes on the forums when they are priced right. most people who have one are interested in fun street cars or good autocross cars. as such they arent on that never ending "I need more power' train. they hang onto them.
comp = 52.6/74 dual 6 blade. its basically a tweaked 20g cast wheel.
exhaust wheel = 61/55 extremely close to 6sl2 turbine but with original mitsu 12 blade design.
compressor housing is smaller than evo 8. they were after good response.
turbine housing is a tad smaller than mistu 9.8cm. again after response.
pretty much the same spec as a BBK full. really fun turbo for 2.0. both turbos are hard to get your hands on a used one. I think only 200 hks were ever sold here in the states. makes it really rare. the bbk fulls seem to last minutes on the forums when they are priced right. most people who have one are interested in fun street cars or good autocross cars. as such they arent on that never ending "I need more power' train. they hang onto them.