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Old 11-19-2008, 08:34 AM   #1
jaimejrivera
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Default HTA Tested and compared against Green

After breaking the hot wheel of my FPGreen, I installed a Green HTA. I was able to squeeze 25 whp more on same conditions as the Green. From 351 to 376 WHP.

The car feels awesome

Here is the Comparison Graph link:
http://i380.photobucket.com/albums/o...r/HTAJimmy.jpg

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Old 11-19-2008, 08:46 AM   #2
CatfaceType-R
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spool looks better on the non hta though..pretty odd from earlier statements before it came out
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Old 11-19-2008, 09:00 AM   #3
xsblack
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Default old Vs new FP Green

Old school green = 49lb/min
New HTA green = 57lb/min

That graph shows the HTA is clearly a larger turbo. I have to say that if you are going to be running pump gas/no meth the old school green may be better. That being said if you throw in some race gas on the HTA you should make some good power (450 whp?)

thanks for sharing your results
how long was the old school green on the car before it went?
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Old 11-19-2008, 10:24 AM   #4
wrxhard
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Quote:
Originally Posted by xsblack View Post
I have to say that if you are going to be running pump gas/no meth the 20g may be better. That being said if you throw in some race gas on the FP Green you should make some good power
performed a word switch:
hta = fp green
old school green = 20g

Does that saying remind anybody of the past?
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Old 11-19-2008, 10:44 AM   #5
Clark_Kent
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Thanks for sharing the results. There sure seems to be quite a bit of FP turbo failures.
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Old 11-19-2008, 10:46 AM   #6
slowmike
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What are your supporting mods?
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Old 11-19-2008, 11:26 AM   #7
PPhilthy
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After my original FP Green failed, and some kicking/screaming/complaining, FP steped up and sent me their new HTA FP Green...

Best Dyno #'s comparison:
Original FP Green 408whp/395wtq (Pump gas & Meth 50/50 - APS Header/Up-Pipe - 27psi)


HTA FP Green 410whp/420wtq (Pump gas & Meth 50/50 - Full-Race Header/1.5 Scroll Up-Pipe - only 23psi)


It's not the greatest test comparision because the Full-Race system is definitely helping the spool on the HTA chart and would have provided improvement on the original FP Green too - and the Original FP Green chart is @ 27psi and the HTA is only 23psi... I think 450whp is certainly obtainable with the HTA with really good spool.

Overall the HTA FP Green turbo is a good option for 400-450whp... I have one for sale too with only a dyno session on it

Last edited by PPhilthy; 11-19-2008 at 11:32 AM.
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Old 11-19-2008, 11:30 AM   #8
juanmedina
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Quote:
Originally Posted by slowmike View Post
What are your supporting mods?
+1, what gas? what PSI?

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Old 11-19-2008, 11:48 AM   #9
jaimejrivera
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Default

thanks for sharing your results
how long was the old school green on the car before it went?[/quote]

I put about 5000 miles on my old green. Apparently something came loose (like a piece of welding) and damage the hot side wheel.
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Old 11-19-2008, 11:52 AM   #10
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OFFtopic

thats AIRboys interpolation dyno sheet, right? how does it read compare to real dynos?

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Old 11-19-2008, 12:05 PM   #11
WRXPowa112
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I am surpised PHATRON has not popped his head in on this thread.
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Old 11-19-2008, 01:15 PM   #12
MattPersman
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I have given Phatron plenty of HTA logs from my car, he is looking at the ATP turbos I think

I like the HTA, nice strong street turbo for daily driving
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Old 11-19-2008, 01:16 PM   #13
MattPersman
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also FWIW my car maxes the stock MAP sensor (24.x+ psi) around 37-3900 RPMs (3rd gear WRX)
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Old 11-19-2008, 01:20 PM   #14
Infamous1
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Quote:
Originally Posted by juanmedina View Post
OFFtopic

thats AIRboys interpolation dyno sheet, right? how does it read compare to real dynos?

It is on the lower side of things. Cars I have tuned that were ran on dynojets typically read about 7-9% higher than Airboys dyno sheet. As long as your wheel diameter, gearing, weight are correct and the road is level it is as accurate as you are going to get (assuming aerodynamic drag is correct).
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Old 11-19-2008, 01:41 PM   #15
juanmedina
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Quote:
Originally Posted by Infamous1 View Post
It is on the lower side of things. Cars I have tuned that were ran on dynojets typically read about 7-9% higher than Airboys dyno sheet. As long as your wheel diameter, gearing, weight are correct and the road is level it is as accurate as you are going to get (assuming aerodynamic drag is correct).
thanks my car reads like 240whp with a VF39 and I was disappointed

Quote:
Originally Posted by MattPersman View Post
also FWIW my car maxes the stock MAP sensor (24.x+ psi) around 37-3900 RPMs (3rd gear WRX)
I see that you are selling a lot of part , are you getting a new setup?
How is the tranny doing?

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Old 11-19-2008, 01:59 PM   #16
WRXPowa112
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Quote:
Originally Posted by Infamous1 View Post
It is on the lower side of things. Cars I have tuned that were ran on dynojets typically read about 7-9% higher than Airboys dyno sheet. As long as your wheel diameter, gearing, weight are correct and the road is level it is as accurate as you are going to get (assuming aerodynamic drag is correct).

I tried using AIRBOYS sheet but everytime I load my data up the document freezes and I have to close it.

What data logger are you using?
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Old 11-19-2008, 02:35 PM   #17
Infamous1
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Quote:
Originally Posted by WRXPowa112 View Post
I tried using AIRBOYS sheet but everytime I load my data up the document freezes and I have to close it.

What data logger are you using?
I use Romraider.
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Old 11-19-2008, 02:37 PM   #18
Infamous1
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Quote:
Originally Posted by juanmedina View Post
thanks my car reads like 240whp with a VF39 and I was disappointed

It reads low but not that low (assuming your atleast stg2), your tune needs a little bit of work
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Old 11-19-2008, 03:28 PM   #19
Phatron
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Quote:
Originally Posted by WRXPowa112 View Post
I am surpised PHATRON has not popped his head in on this thread.
guess who....

Quote:
Originally Posted by MattPersman View Post
I have given Phatron plenty of HTA logs from my car, he is looking at the ATP turbos I think

I like the HTA, nice strong street turbo for daily driving
im keeping my OG Green on my STi....for now

i am looking at the ext gated ATP3076 for my wrx....some douchebag on nasioc sold me a SBR GT12 that has bad bearings.....you can here them crunching over my exhaust.....sounds like someone is eating rice crispies and scraping their nails on a chalk board.

the results are what i've expected all along.....i mean deadbolt has had the sz49 (green) and the sz55 (hta green) out for a long time....it just took FP a while to copy it i guess

i think the reason this whole thing got started is simply because FP insisted on calling it a Green. If they had just said this is an Orange and its a 55-57 lb/min turbo, then people would immediately know it spooled a tad slower and made more top end than a green. but instead fp decided to call it a super green and claim it spools faster and makes more top end. and they sold it with the anti surge housing for about 5 minutes....then pulled that design.
i am under the impression that they really didnt do that much testing before they started selling them.

Quote:
Originally Posted by juanmedina View Post
OFFtopic

thats AIRboys interpolation dyno sheet, right? how does it read compare to real dynos?
i have had good luck with the spreadsheet reading right in line with a Dyno Dynamics. I got tuned on 91 octane and did 320-330whp on a DD and it read the same in the spreadsheet. I then got tuned on 91+meth and made 375 whp on a Dynolog....it read 375 in the spreadsheet.

i always use the same stretch of road and try and always start at the same rpm. I have 5-15 whp variations in results on the same tune while logging on that same stretch of road. I'd call that pretty good for a road dyno.

Last edited by Phatron; 11-19-2008 at 03:36 PM.
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Old 11-19-2008, 09:55 PM   #20
JoseanWRX
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Hey guys if you look at the graph the OG Green pull was started a lot earlier than the HTA. Here is the old thread with the mod list and 1/4 mile time http://forums.nasioc.com/forums/show....php?t=1607513 .
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Old 11-19-2008, 10:38 PM   #21
q_dubz
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how does a turbo that has a lighter billet comp wheel, same size hot/cold side spool later? Lets think about that real quick. All FP did was make the comp wheel more efficient. If its anthing like the HTA35r then the wheel is a lil smaller... IIRC the HTA35r uses a wheel that is 1mm smaller.
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Old 11-19-2008, 10:39 PM   #22
shuttlegoosecock
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even with the increase in lbs per minute you need to rev that thing out a lot further because there is more left in there. If your not gonna rev it out i would stick with the old green.
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Old 11-20-2008, 12:42 PM   #23
MattPersman
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yep, for ref my 20g with 8cm felt like it died off way early, with the HTA it actually still feels worth pulling to 7+

Juan, trans is fine, as with anything it could go anytime
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Old 11-20-2008, 01:44 PM   #24
wrxhard
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Quote:
Originally Posted by q_dubz View Post
how does a turbo that has a lighter billet comp wheel, same size hot/cold side spool later? Lets think about that real quick. All FP did was make the comp wheel more efficient. If its anthing like the HTA35r then the wheel is a lil smaller... IIRC the HTA35r uses a wheel that is 1mm smaller.
Yes, but the HTA35r wheel didn't pick up 8 lbs/min airflow over the standard 35r. Make no mistake, this is a physically bigger wheel than the standard green. Lighter billet comp wheel? Lighter than what? Lighter than another 57 lb/min wheel? Yeah, probably. Lighter than a 49 lb/min wheel? Doubt it.

Like ron said, this IS NOT A GREEN it was marketed as a green, but it's a whole different monster. I also think it should have been called an orange. Jerry doesn't call his sz55 an sz49. Know why? Cuz it's not an sz49.
Fp's marketing made a mistake. Plain and simple. They should have said, "Introducing the new FP Orange. Makes up to 75hp more than our old green, with little to no penalty in spool up." The reason people are mad is because it was touted as a "day walker" turbo that had all the strengths and none of the weaknesses which we know now isn't the case.
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Old 11-20-2008, 01:49 PM   #25
the real suby dude
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^^^ wrong
If that was the case no one would buy the green anymore than
It's all a marketing scheme
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