Any Feedback on Precisions new 5831?
- Thread starter KEVINS
- Start date
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Rustyregal
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- Joined
- Jun 7, 2012
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Bump
I would like to know also as I may be getting one myself.
I would like to know also as I may be getting one myself.
- Joined
- May 27, 2001
- Messages
- 10,866
Kevin,
Do you have a baseline pass or dyno for us.
Do you have a baseline pass or dyno for us.
Sorry, nothin'...Kevin,
Do you have a baseline pass or dyno for us.
Oh, wait! I have the ol'
Butt Dyno!
ks
- Joined
- May 27, 2001
- Messages
- 10,866
Sorry, nothin'...
Oh, wait! I have the ol'
Butt Dyno!
ks
I was teasing a little bit, but I would really like feedback when you can share some.
I know..
When I get the boost issues figured out and I can evaluate how the car runs with the turbo I'll definitely post my thoughts.
ks
Update:
I got my boost control all figured out and I'm using this controller instead of my Grainger Valve and now the boost is setting at a steady 29psi with this turbo:
http://www.turboxsparts.com/84.html
If you're wanting better boost control then I definitely recommend this unit although the instructions suck
Turbo Review:
When running this much boost the flapper valve was opening on it's own due to the pressure in the exhaust housing so I was told to put an extra spring on the WG rod. That worked perfectly. I did NOT open the wg hole any more than what it came with but I did blend the inside radius with a die grinder.
As far as the Precision 5831 turbo goes, I LOVE IT.
Up to 22psi there is no difference in power over the stock turbo on my combo (stock long block) and there is a tad more turbo lag up to about 4psi but not much with a 2800 stall. Once it hits 4psi then the boost is instant. With a stock D5 it will feel the same so DO NOT let this little bit of lag deter you from getting this turbo.
When running 23-24psi you can really feel the difference starting to come through over the stock turbo.
At 25-26 psi the stock turbo can't keep up and the 5831 starts making real good power that can really put a smile on your face.
BUT, the fun doesn't begin until you hit 27psi. On my combo there is a huge difference between 26psi and 27psi that can really be felt and this leaves you wanting just a bit more. You can stop at this boost level and be perfectly happy.....if you want
At 28-29psi this turbo simply makes power! It feels like this is a very comfortable boost setting for this little hairdryer and this is where I am leaving it b/c the power this combo is making is just fantastic. It will light up the tires at 50mph at will and I need to feather the throttle to keep the tire spin controllable.
Yes, I've had it to 30psi and it feels very comfortable at this pressure on my combo but once you get to 28psi or more the car is making so much Stupid Power that it's just a waste of alchy on the street.
Oh yea, this is all on 91 octane and alchy
Thanks for all your help!
Regards
Kevin Slaby
I got my boost control all figured out and I'm using this controller instead of my Grainger Valve and now the boost is setting at a steady 29psi with this turbo:
http://www.turboxsparts.com/84.html
If you're wanting better boost control then I definitely recommend this unit although the instructions suck
Turbo Review:
When running this much boost the flapper valve was opening on it's own due to the pressure in the exhaust housing so I was told to put an extra spring on the WG rod. That worked perfectly. I did NOT open the wg hole any more than what it came with but I did blend the inside radius with a die grinder.
As far as the Precision 5831 turbo goes, I LOVE IT.
Up to 22psi there is no difference in power over the stock turbo on my combo (stock long block) and there is a tad more turbo lag up to about 4psi but not much with a 2800 stall. Once it hits 4psi then the boost is instant. With a stock D5 it will feel the same so DO NOT let this little bit of lag deter you from getting this turbo.
When running 23-24psi you can really feel the difference starting to come through over the stock turbo.
At 25-26 psi the stock turbo can't keep up and the 5831 starts making real good power that can really put a smile on your face.
BUT, the fun doesn't begin until you hit 27psi. On my combo there is a huge difference between 26psi and 27psi that can really be felt and this leaves you wanting just a bit more. You can stop at this boost level and be perfectly happy.....if you want
At 28-29psi this turbo simply makes power! It feels like this is a very comfortable boost setting for this little hairdryer and this is where I am leaving it b/c the power this combo is making is just fantastic. It will light up the tires at 50mph at will and I need to feather the throttle to keep the tire spin controllable.
Yes, I've had it to 30psi and it feels very comfortable at this pressure on my combo but once you get to 28psi or more the car is making so much Stupid Power that it's just a waste of alchy on the street.
Oh yea, this is all on 91 octane and alchy
Thanks for all your help!
Regards
Kevin Slaby
- Joined
- May 28, 2001
- Messages
- 2,553
Are you still using denatured alcohol or methanol?
I would highly recommend methanol.
I would highly recommend methanol.
100% meth.
