dyno fun
Thread Starter
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,341
From: Gilbert AZ
Got to dyno, got all setup. 1st pull, 14 degrees timing maxed dyno out. It is a dynapak with bolt on hubs because all the local dyno jets can't hold >800rwhp. So tried to dyno in 5th but corvette 5th hits the speed limiter on the dyno so the only way to get numbers was to dial the tune back. Started pulling timing out until it got a reading. 11 degrees showed 1116rwhp/960rwtq. AFR was still whacked but after last pull 2 ribs of the belt came off (my stupidity) so that ended the evening. Will get a new belt on tomorrow and hopefully time to finish the tune but we will have to limp it along on this dyno to get a reading at all.
Thread Starter
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,341
From: Gilbert AZ
It was actually blend of MS109 and 91, but ****, I was running less timing than I do on pure 91 daily, so I don't think that helped. Had timing at 11.
Peak boost was a bit over 22psi according to dyno, and 247kpa according to Map sensor on car.
Peak boost was a bit over 22psi according to dyno, and 247kpa according to Map sensor on car.
Thread Starter
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,341
From: Gilbert AZ
Doug, sent you an email about the belt issue with some pictures. Please help 
Got to get it all done by Wednesday for the race in December because I'm gone from the 26th to 10th.
Yes, car is making stupid power now. The airaid filter freed up 4psi which is a bit crazy.
Whats interesting is my inlet/filter/pipe testing. I thought the 4" pipe would pick up big power, but I got ~2hp out of it, barely anything. Basically same as before. ECS inlet pipe or 4" pipe made 1048-1050rwhp. So people wanting a 4" pipe and cut down dewitts/etc, if you have an ECS kit, it may not be worth it. Now PC or AA kits seem to gain a lot. The restriction on the ECS kit is actually the filter. 4" pipe with airaid filter made 22.5psi. Put the ECS filter on, and 18.5psi, back down to the 1050rwhp range. It is like a built in restrictor setup.
Got to get it all done by Wednesday for the race in December because I'm gone from the 26th to 10th. Yes, car is making stupid power now. The airaid filter freed up 4psi which is a bit crazy.
Whats interesting is my inlet/filter/pipe testing. I thought the 4" pipe would pick up big power, but I got ~2hp out of it, barely anything. Basically same as before. ECS inlet pipe or 4" pipe made 1048-1050rwhp. So people wanting a 4" pipe and cut down dewitts/etc, if you have an ECS kit, it may not be worth it. Now PC or AA kits seem to gain a lot. The restriction on the ECS kit is actually the filter. 4" pipe with airaid filter made 22.5psi. Put the ECS filter on, and 18.5psi, back down to the 1050rwhp range. It is like a built in restrictor setup.
Last edited by Unreal; Nov 21, 2014 at 12:29 PM.
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Doug, sent you an email about the belt issue with some pictures. Please help Got to get it all done by Wednesday for the race in December because I'm gone from the 26th to 10th.
Yes, car is making stupid power now. The airaid filter freed up 4psi which is a bit crazy.
Whats interesting is my inlet/filter/pipe testing. I thought the 4" pipe would pick up big power, but I got ~2hp out of it, barely anything. Basically same as before. ECS inlet pipe or 4" pipe made 1048-1050rwhp. So people wanting a 4" pipe and cut down dewitts/etc, if you have an ECS kit, it may not be worth it. Now PC or AA kits seem to gain a lot. The restriction on the ECS kit is actually the filter. 4" pipe with airaid filter made 22.5psi. Put the ECS filter on, and 18.5psi, back down to the 1050rwhp range. It is like a built in restrictor setup.
Got to get it all done by Wednesday for the race in December because I'm gone from the 26th to 10th. Yes, car is making stupid power now. The airaid filter freed up 4psi which is a bit crazy.
Whats interesting is my inlet/filter/pipe testing. I thought the 4" pipe would pick up big power, but I got ~2hp out of it, barely anything. Basically same as before. ECS inlet pipe or 4" pipe made 1048-1050rwhp. So people wanting a 4" pipe and cut down dewitts/etc, if you have an ECS kit, it may not be worth it. Now PC or AA kits seem to gain a lot. The restriction on the ECS kit is actually the filter. 4" pipe with airaid filter made 22.5psi. Put the ECS filter on, and 18.5psi, back down to the 1050rwhp range. It is like a built in restrictor setup.
Mine didn't gain much removing the filter only, but removing the long 4"/90* bend inlet pipe I picked up 2 psi. I ended up cutting the pipe in half removing most of the 90* bend...Now the filter sits almost above the radiator cover.. I went the DP big mouth filter at that point to.... Even with the changes, it still gains 1-1.5 psi with nothing on the blower at all..
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Thread Starter
Team Owner
Joined: Nov 2007
Posts: 24,035
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From: Gilbert AZ
Fairy dust and unicorn horns
LSX block
Calles Dragon slayer 4" long snout
Coated bearings
Calles Ultra rods
Livernois/Ross coated top/skirts/etc pistons, steel upgraded rings
ARP stuff
Pat G cam
LSX block
Calles Dragon slayer 4" long snout
Coated bearings
Calles Ultra rods
Livernois/Ross coated top/skirts/etc pistons, steel upgraded rings
ARP stuff
Pat G cam
