New Dyno#'s - WTF is Going On?
Thread Starter
On The Tree
Joined: Jul 2002
Posts: 131
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From: tampa fl.
New Dyno#'s - WTF is Going On? http://i172.photobucket.com/albums/w...prey/dyno2.jpg I've been chasing this problem for almost 2 years- I can't seem tomake over 700rwhp.
Originally,I spoke to Speed Inc about this issue and theysaid that the stock twin intercooler could be a restriction so I had a custom Spearco made and it didn't fix the problem.
Then it was the springs on the heads - fixed that, but still the same issue.
The problem is that (see below) at the top of the run (after 5800 rpms) it stops making power - there is no belt slippage, at least not enough to create this problem.
I'm beginning to wonder if it is just out of cfm- my set-up is a 410ci, afr 225, FAST intake 90/90 throttle body, cam 224 232 .581 .595 114.
I need some opinions about what the problem could be - It's driving me CRAZY!
Originally,I spoke to Speed Inc about this issue and theysaid that the stock twin intercooler could be a restriction so I had a custom Spearco made and it didn't fix the problem.
Then it was the springs on the heads - fixed that, but still the same issue.
The problem is that (see below) at the top of the run (after 5800 rpms) it stops making power - there is no belt slippage, at least not enough to create this problem.
I'm beginning to wonder if it is just out of cfm- my set-up is a 410ci, afr 225, FAST intake 90/90 throttle body, cam 224 232 .581 .595 114.
I need some opinions about what the problem could be - It's driving me CRAZY!
Thread Starter
On The Tree
Joined: Jul 2002
Posts: 131
Likes: 0
From: tampa fl.
Originally Posted by ninetres
ahhhhhhhhhhhhhhhhhhhh.....
the graph you posted shows over 700 rwhp. The tq is 69X.
the graph you posted shows over 700 rwhp. The tq is 69X.
My goal has been to make @ or over 800 rwhp but no matter what I do I stay around the low 700's I even tried a 75 shot of nitrous and only picked up 20rwhp (on the old set-up). So somethings wrong.
Thread Starter
On The Tree
Joined: Jul 2002
Posts: 131
Likes: 0
From: tampa fl.
Originally Posted by raymond mckinney
Someone told me u got a G35, I about cried!
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Your not slipping a clutch are you bro? 
Looks like you might have a little power left in your upper end by leaning out your AFR to more like 11.6-11.8. I wouldn't be surprised if you picked up another 20HP easily.
You have some good numbers already, though...
Jim
You have some good numbers already, though...
Jim
The grapgh doesnt look like its maxing out. I would assume that if the head unit maxed out, you would see a good fall off at some point and the HP and TQ curve look steady. Are you running a 2/ 3 bar speed density setup?
im with the cam too small. when first getting mine built everyone said my cam was too big. not anymore..... i know the D1 will max out on my setup but be it i see 707 w/ 9psi on the 4.00" pulley im not even gonna worry about it. talk to cam motion about getting yourself a new cam first is what id do. im on a 24x/25x
