AMS tests the New Forced Performance HTA37R!
Thread Starter
Former Sponsor
iTrader: (42)
Joined: Oct 2003
Posts: 6,132
Likes: 3
From: West Chicago, IL
AMS tests the New Forced Performance HTA37R!
With all the HTA talk as of late we had Rob and the guys over at Forced Performance send us an HTA37R over to test out on our Dyno. As with Every test we do here we kept it as scientific as possible.
First here are some details about the test mule. Our customer Dave Bruzewski's Black EVO VIII with all the fixins.
AMS 37R/HTA37R Turbo kit
AMS VSR Twin Rail Intake manifold
AMS Race FMIC
AMS 2.3 Stroker motor
AMS Race head
Jun 272/272 cams
AMS Catback with test pipe
Two sets of 880cc injectors
and so on and so on hahaha
Lets just say this is one bad *** car.
The test was done here in house on our Dynojet 424X Dyno
Boost on both turbos was set to peak at 42 psi and by redline would fall to about 38.5
Fuel was VP's new Q16 blend
AFR's were set at about 11.8:1
This is a back to back look at the turbos. You can see the HTA spools about the same but between 6000 and 8000 RPM it does pick up a little bit of HP and torque. Not as much of a gain as we would have expect based on HTA35R and HTA30R testing but still a gain none the less.
Have a look for yourself
Red line = HTA37R
Blue Line = AMS 37R
Summary: If you currently have an AMS 37R I don't know if the labor and cost would offset the gains from the HTA37R turbo but if you are in the market for an upgrade from say a smaller turbo like a GT30R, GT35R, Green etc... the HTA37R spools the same as the standard 37R and makes more power. It would be a great option.
Eric
First here are some details about the test mule. Our customer Dave Bruzewski's Black EVO VIII with all the fixins.
AMS 37R/HTA37R Turbo kit
AMS VSR Twin Rail Intake manifold
AMS Race FMIC
AMS 2.3 Stroker motor
AMS Race head
Jun 272/272 cams
AMS Catback with test pipe
Two sets of 880cc injectors
and so on and so on hahaha
Lets just say this is one bad *** car.
The test was done here in house on our Dynojet 424X Dyno
Boost on both turbos was set to peak at 42 psi and by redline would fall to about 38.5
Fuel was VP's new Q16 blend
AFR's were set at about 11.8:1
This is a back to back look at the turbos. You can see the HTA spools about the same but between 6000 and 8000 RPM it does pick up a little bit of HP and torque. Not as much of a gain as we would have expect based on HTA35R and HTA30R testing but still a gain none the less.
Have a look for yourself
Red line = HTA37R
Blue Line = AMS 37R
Summary: If you currently have an AMS 37R I don't know if the labor and cost would offset the gains from the HTA37R turbo but if you are in the market for an upgrade from say a smaller turbo like a GT30R, GT35R, Green etc... the HTA37R spools the same as the standard 37R and makes more power. It would be a great option.
Eric
It actually looks like your test HTA spooled a 100-200 rpms later, but more power on top. How could that be? How was the boost between the two? I know you said the peak boost was the same, but did they show same boost throughout the pull?
Thread Starter
Former Sponsor
iTrader: (42)
Joined: Oct 2003
Posts: 6,132
Likes: 3
From: West Chicago, IL
It actually looks like your test HTA spooled a 100-200 rpms later, but more power on top. How could that be?
I don't know where you are seeing that. If you follow the graph from start to peak torque they almost mirror each other....maybe 50-100 rpm if that...but honestly its almost identical.
Eric
Trending Topics
They mirror on spool up to 4800, then the torque of the original 37R continues to increase and appears to peak slightly sooner. The new HTA torque curve 'softens' just a bit BEFORE the original. This is what I'm seeing. It is totally opposite of what I would have expected to see on the HTA, considering that the 35HTA characteristics were opposite of this. This is close, I know, but I just thought the HTA would show a higher torque curve and sooner instead of 180 degrees to that.
Edit: He beat me to it...posted while I was making this post.
