Review: FP 71HTA
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
Most hta green plots I've seen on pump gas cross 300wtq around 4k and peak torque around 4.5k...I don't think I'm that far off.
Mivec maxed at 28.8 during spool.
Idk...maybe my kelfords are hurting spool a bit...but shouldn't be too much.
Excited to see my plots with the 71hta.
Mivec maxed at 28.8 during spool.
Idk...maybe my kelfords are hurting spool a bit...but shouldn't be too much.
Excited to see my plots with the 71hta.
My White was at 300ftlbs at 3600-3800, so 4k on the Green sounds right. I hear about 200rpm difference in spool. That's fine with me and expected. I also reached peak torque (370ftlbs) around 5k. Sounds to me like the Green and S1 cams will work just great for my application.
Nevermind, i read your post in a hurry. My mistake.
My White was at 300ftlbs at 3600-3800, so 4k on the Green sounds right. I hear about 200rpm difference in spool. That's fine with me and expected. I also reached peak torque (370ftlbs) around 5k. Sounds to me like the Green and S1 cams will work just great for my application.

My White was at 300ftlbs at 3600-3800, so 4k on the Green sounds right. I hear about 200rpm difference in spool. That's fine with me and expected. I also reached peak torque (370ftlbs) around 5k. Sounds to me like the Green and S1 cams will work just great for my application.
I think the 71hta should hit peak torque around 3800 with the FAP cover.
However, this was where the turbo overshot target boost by like 1psi, so if you flatten out the spike peak tq seems to be right around 3700-3800
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA

And maybe since I have 4.11FD, I may be able to load up sooner

I would imagine the response at 2500 would be considerably better than my hta green.
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
Yeah, the 4.11s will take longer to accelerate, so you will reach torque earlier in your log. But what in heck do you need response at 2500rpm for?

Cliffs: Stock Block 9, Pump 93, Mustang Dyno, 24psi spike to 23psi out the top
Untitled by Alex Whitacre, on Flickr
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
Finally got mine..downgraded from a green...see here:
https://www.evolutionm.net/forums/ev...l#post11598517
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
Finally got mine..downgraded from a green...see here:
https://www.evolutionm.net/forums/ev...l#post11598517
https://www.evolutionm.net/forums/ev...l#post11598517
debating on getting the 84mm AFP cover.... sounds like it would hurt spool and low end TQ a bit but help up top and prevent any potential surge issues.
How many of you have the stock appearing cover?
How many of you have the stock appearing cover?
Thread Starter
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
FYI FP is only selling them with the 84mm FAP Covers. If you have cams it will surge on the stock appearing cover depending on which cams you have. Larger cams have more issues than milder cams. If you do pick one up and are hell bent running the standard inlet I have a standard cover I'd let go for cheap.







