Finally dyno'd the car.
Thread Starter
Joined: Nov 2001
Posts: 10,813
Likes: 15
From: Doylestown PA
Finally dyno'd the car. I'm pretty happy. Here's the typical questions:
Timing, 15.5 degrees.
Fuel, 93 octane pump gas with meth injection.
Compression,
Cam, 227/231, 600/600, 113lsa.
Boost, 17psi
Blower, D1SC
...and the standard dyno video.
Overall, I'm pretty shocked that the torque was 688, I was figuring low to mid 600, and hp around 700-750. I'm running 1 3/4 qtp headers with a 3" ORY from Kooks, into a Magnaflow f-body catback, so exhaust is probably hurting the numbers up top.
Thoughts?
Timing, 15.5 degrees.
Fuel, 93 octane pump gas with meth injection.
Compression,
Cam, 227/231, 600/600, 113lsa.
Boost, 17psi
Blower, D1SC
...and the standard dyno video.
Overall, I'm pretty shocked that the torque was 688, I was figuring low to mid 600, and hp around 700-750. I'm running 1 3/4 qtp headers with a 3" ORY from Kooks, into a Magnaflow f-body catback, so exhaust is probably hurting the numbers up top.
Thoughts?
Thread Starter
Joined: Nov 2001
Posts: 10,813
Likes: 15
From: Doylestown PA
Thanks.
Sort of, yes. Power dropped off as you see around 6500-6600.
So, 6600rpm X 7.65" (crank pulley) / 3.40" (blower pulley) X 4.1 (step up ratio) = 60885 rpm. Max rpm for the blower is 62,500, so I'm good to go for now. Maybe an 8.00 crank pulley would get me more...
Sort of, yes. Power dropped off as you see around 6500-6600.
So, 6600rpm X 7.65" (crank pulley) / 3.40" (blower pulley) X 4.1 (step up ratio) = 60885 rpm. Max rpm for the blower is 62,500, so I'm good to go for now. Maybe an 8.00 crank pulley would get me more...
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Joined: Jul 2005
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From: Mountain Home, ID on My way to Korea!
I agree, I would turn the timing up a little since you're running meth. You could probably still be safe at 16-17* even if your meth was to stop working. But at least this way you know you have a long lasting setup for years to come!
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........I'm running 1 3/4 qtp headers with a 3" ORY from Kooks, into a Magnaflow f-body catback, so exhaust is probably hurting the numbers up top.
Thoughts?[/QUOTE]
I've gained around 90rwhp just by opening my dual cut-outs on my previous twinturbo set-up with Magnaflow cat-back exhaust system. I realized that turbo's are different, and I think most of that gained has a lot to do with the fact that I had 2.5" downpipes and Y-pipe w/c merged into 3". I'm pretty sure you're still giving up pretty good amount of power with just a single 3" cat-back, especially once you get around that kind of power. - Very nice job!
Thoughts?[/QUOTE]
I've gained around 90rwhp just by opening my dual cut-outs on my previous twinturbo set-up with Magnaflow cat-back exhaust system. I realized that turbo's are different, and I think most of that gained has a lot to do with the fact that I had 2.5" downpipes and Y-pipe w/c merged into 3". I'm pretty sure you're still giving up pretty good amount of power with just a single 3" cat-back, especially once you get around that kind of power. - Very nice job!
Thread Starter
Joined: Nov 2001
Posts: 10,813
Likes: 15
From: Doylestown PA
See, I'm sure there's some things I could do at this point to get more power out of it like going with 1 7/8" headers, 3.5" ypipe, into a 3.5" intermediate, which I might do. I'm sure a cam change would help hold the power up top. One thing I might do is go with a wider intercooler as mine is only a 3" core. A 4" core might help it flow more air.
But with all that said, 750rwhp is massively fun on the street, especially once I warm up the tires a little.
But with all that said, 750rwhp is massively fun on the street, especially once I warm up the tires a little.
Thread Starter
Joined: Nov 2001
Posts: 10,813
Likes: 15
From: Doylestown PA
PI is Performance Induction, which MAST bought out, so technically they are MAST heads.
MAP sensor is a 2.5 bar from DSXtuning, and 3bar OS. Fuel is a Lonnie twin in tank 255 setup, with ID1000 injectors. Still running stock lines, into Speed INC rails, and stock regulator.
MAP sensor is a 2.5 bar from DSXtuning, and 3bar OS. Fuel is a Lonnie twin in tank 255 setup, with ID1000 injectors. Still running stock lines, into Speed INC rails, and stock regulator.
your car freakin rules B $. I waited a long time to see what shed lay down. Sure there is room to improve, but enjoy it where it is until you get the itch for more and are bored. That is great power. Tuned and built in your own garage. Nice Job. That thing will prob live there for a while with that timing and AFR with methanol. I would rather you make 760rwhp safely vs 800 on the edge. 40rwhp is not worth the risk when you consider the cost of internals and blocks/machine work....which you and I are both familar with at this point. 
Nice numbers. I can't wait to get mine back on the dyno. Similar setup but only 15psi
Are you running the stock tensioner? Just wondering what that boost curve looked like and if it dropped off up top.
Are you running the stock tensioner? Just wondering what that boost curve looked like and if it dropped off up top.