512rwhp 4094 dyno..
Trending Topics
09-29-07, 12:46 AM
#8
I am sure it has more in it as Asleep made right at 500 with 21 psi. on his 4094. I am still learning a ton when it comes to tuning. These is basically a map from BDC on my old 40r with me cleaning up the A/R's.. Left timing alone for now.
09-29-07, 10:12 AM
#9
Full Member
Join Date: Aug 2001
Location: Maryland
Posts: 235
Likes: 0
Received 0 Likes
on
0 Posts
If you are using a DynoJet without the eddy current brake you'll want to do your tuning in 4th or 5 th gear. Using 3rd you end up sweeping through the rev range too quick which can make your tune appear to be good, but you could actually have a spot that is too rich or too lean that is masked by the surrounding load cells. The race gas is good insurance when you are trying to get everything smoothed out. Everybody starts somewhere, nice to see you learning the "ropes" just be careful and take your time.
09-29-07, 10:42 AM
#10
BDC Motorsports
Wow Mikey, nice work! I am not sure of the break-up up high but one part of me thinks it might not hurt to pull a degree or two out up on the very high end of where you're at. Also, when you say 12 trailing do you mean the split is 12* or is 12*BTDC, with a 6* split? I'll have to check the map out here.
Anybody else notice the 72hp jump from 22 to 26psi? Mike do you know what power it made at 15psi by chance?
B
Anybody else notice the 72hp jump from 22 to 26psi? Mike do you know what power it made at 15psi by chance?
B
Last edited by BDC; 09-29-07 at 10:48 AM.
09-29-07, 10:54 AM
#11
BDC Motorsports
This is basically the port I put on his motor: http://bdc.cyberosity.com/v/EnginePo...StreetPorting/ Nothing real radical or anything you can shove a cantelope through.
B
B
09-29-07, 12:42 PM
#13
If you are using a DynoJet without the eddy current brake you'll want to do your tuning in 4th or 5 th gear. Using 3rd you end up sweeping through the rev range too quick which can make your tune appear to be good, but you could actually have a spot that is too rich or too lean that is masked by the surrounding load cells. The race gas is good insurance when you are trying to get everything smoothed out. Everybody starts somewhere, nice to see you learning the "ropes" just be careful and take your time.
Ray,
Thanks for the advice and that makes perfect sense to me.. I was going to do some more 4th gear pulls but my WB kept craping out and I would have to let it cool down, recal. it then start again. I did mix in a 4th gear pull here and there. I was upping the boost making a 3rd gear pull check the log then same psi but in 4th, make changes then up the boost ect...
Brian,
the lowest pull I had graphed was 18psi that made 415ish.. The break up, up top who knows what it was but it was very very quick and minor. The dyno guy did not even catch it. My log showed knock low and A/R's were fine. I was just wondering if the MSD's may be in my future.
I am very happy to break 500. I think thats a feat in its own.. Is it the best it can do? no. But for me its a great start..
09-29-07, 09:00 PM
#16
Banned. I got OWNED!!!
Join Date: Sep 2003
Location: new jersey
Posts: 2,030
Likes: 0
Received 0 Likes
on
0 Posts
Power
10-01-07, 09:51 PM
#23
BDC Motorsports
B
Thread
Thread Starter
Forum
Replies
Last Post
