Just got done installing a set of Performance Induction heads/cam. *UPDATE:VIDEO*
07-18-2010, 08:26 PM
#1
Just got done installing a set of Performance Induction heads/cam. *UPDATE:VIDEO* *UPDATE, ADDED VIDEO OF STARTUP AND COLD IDLE*
So Virginia Speed was having a special on a set of PI heads with a custom spec'd cam, and it included double springs, stainless steel valves (2.04" intake, 1.57" exhaust), 11 degree valve angle, 215cc intake runner, 62cc chambers. These things are simply gorgeous. As for the cam, I talked to Ed for a while and explained that most of the time that I drive my car it's back and forth to work, which are all backroads, so I routinely see rpms from 2500-4500, with an occasional romp to 6000. I didn't want to lose or sacrifice low end torque at all, but I didn't want to lose anything up top either when the need was there. So we went with a Va spec'd cam that was mid 220's/mid 230's with 610 lift.
Everything came last weekend, and I spent an hour or so each night getting things together. I finally got everything back together last night, but the kids were in bed, so first fire up came this morning. Surprisingly, it is actually quieter than my TR224 valvetrain was. The engine bay is so quiet, I can actually hear the trashed bearings in my alternator.
Of course today was cooking outside for it's maiden voyage. Mildy cruising at 50mph I was seeing IAT's over 100 degrees, but the car felt great. The power delivery is amazing. I can actually get some traction in mid second to third gear because it comes on progressively harder and harder.
After doing a couple light heat cycles and shaking the car out to make sure afr was good and no knock, I did a 3rd gear pull from 2500 to 6000 and it was phenominal. I compaired log files and I actually accelerated on the same flat road a half second quicker today than I did back with the old setup, which was no slouch either. I can only imagine what the car is going to be like on a cooler day.
I plan to get it on a dyno sometime this fall whenever someone hosts a dyno day. I'm figuring I should be right around 475-480 rwhp and 430-440 rwtq. We'll see.
Thanks to Ed and Shannon @ Virginia Speed for their help in getting this done. One day I'll be picking up a shortblock I'm sure.
http://www.youtube.com/watch?v=YFRVsD8XXkI
So Virginia Speed was having a special on a set of PI heads with a custom spec'd cam, and it included double springs, stainless steel valves (2.04" intake, 1.57" exhaust), 11 degree valve angle, 215cc intake runner, 62cc chambers. These things are simply gorgeous. As for the cam, I talked to Ed for a while and explained that most of the time that I drive my car it's back and forth to work, which are all backroads, so I routinely see rpms from 2500-4500, with an occasional romp to 6000. I didn't want to lose or sacrifice low end torque at all, but I didn't want to lose anything up top either when the need was there. So we went with a Va spec'd cam that was mid 220's/mid 230's with 610 lift.
Everything came last weekend, and I spent an hour or so each night getting things together. I finally got everything back together last night, but the kids were in bed, so first fire up came this morning. Surprisingly, it is actually quieter than my TR224 valvetrain was. The engine bay is so quiet, I can actually hear the trashed bearings in my alternator.
Of course today was cooking outside for it's maiden voyage. Mildy cruising at 50mph I was seeing IAT's over 100 degrees, but the car felt great. The power delivery is amazing. I can actually get some traction in mid second to third gear because it comes on progressively harder and harder.
After doing a couple light heat cycles and shaking the car out to make sure afr was good and no knock, I did a 3rd gear pull from 2500 to 6000 and it was phenominal. I compaired log files and I actually accelerated on the same flat road a half second quicker today than I did back with the old setup, which was no slouch either. I can only imagine what the car is going to be like on a cooler day.
I plan to get it on a dyno sometime this fall whenever someone hosts a dyno day. I'm figuring I should be right around 475-480 rwhp and 430-440 rwtq. We'll see.
Thanks to Ed and Shannon @ Virginia Speed for their help in getting this done. One day I'll be picking up a shortblock I'm sure.
http://www.youtube.com/watch?v=YFRVsD8XXkI
Last edited by The Alchemist; 08-09-2010 at 08:03 AM.
07-19-2010, 06:04 AM
#7
It's not a show car in terms of cleanliness, but I try to keep up. I enjoy driving the car every now and then, but I try and keep it looking nice. Thanks.
Thanks
Yup, stock LS3 offset rocker arms. The worst thing I've seen happen to a factory rocker arm is lose the bearings. I've never seen one break, and the factory rocker arms are considerably lighter over the nose than aftermarket rocker arms. If anything, I'll have the bearings replaced with bushings in the future.
Ed @ Va speed thinks I'm being conservative with looking for 475/430. I may step up to 1-7/8 ARH headers in the future, we'll see.
Thanks
Yup, stock LS3 offset rocker arms. The worst thing I've seen happen to a factory rocker arm is lose the bearings. I've never seen one break, and the factory rocker arms are considerably lighter over the nose than aftermarket rocker arms. If anything, I'll have the bearings replaced with bushings in the future.
Ed @ Va speed thinks I'm being conservative with looking for 475/430. I may step up to 1-7/8 ARH headers in the future, we'll see.
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07-19-2010, 03:44 PM
#12
Awesome man! My parts shipped Friday, Heads should ship today. I just ordered the 1 7/8" ARH's with 3 1/2" Ypipe to swap after dynoing with pacesetters to see the difference. Can't wait to get it on the road. You gotta throw up a vid for us though!!!
07-19-2010, 07:03 PM
#13
First off, I gotta take video first, then I need to upload it, then I can post it... First thing I need to do is pull the alternator because with cleaning the front end of the motor, specifically from the power steering pump constantly boiling over, I seemed to have trashed the bearings on the alternator. It literally sounds like I have a procharger it's screaching so bad. So I either need to pick up a new alternator, or pull mine and try and replace/repack the bearings in it.
I drove the car today back and forth to work, which is 98% of the time I drive the car, which is less than a 1000 miles a year, and the car drove great. Even with 95 degree intake air temperatures, the power difference is amazing. The car has really nice linear power, it's not like some monster cam setups that are dogs below 4000 rpm and then shoot up in torque. Realistically, I rarely go over 50-75% throttle and shift usually around 4000-5000 rpm, and the car wanted to break the tires loose through second and third gears at part throttle.
I finally got a chance to open her up and do a second gear from 3500-7000 rpm. I actually hit the limiter at 7000 rpm, and that's with having the shiftlight come on at 6600 rpm, so I gotta get quicker shifting.
B02SS, the heads come with new pedestal mounts to give the correct shim, valve swipe. The heads really were engineered well. I can't wait to see some cooler air temps and see how quick it really is.
Pharmd, who'd you get the ARH headsers/ypipe from? A 3.5" ypipe sounds like it might be a good option that I could grow into later when I get bored with this setup and step up to larger cubes.
I'm stoked guys. I actually drove home with the ttops out, windows down, and radio off just to listen to the motor. I already had a head cam setup that performed well, and this setup is living up to my expectations and beyond.
I drove the car today back and forth to work, which is 98% of the time I drive the car, which is less than a 1000 miles a year, and the car drove great. Even with 95 degree intake air temperatures, the power difference is amazing. The car has really nice linear power, it's not like some monster cam setups that are dogs below 4000 rpm and then shoot up in torque. Realistically, I rarely go over 50-75% throttle and shift usually around 4000-5000 rpm, and the car wanted to break the tires loose through second and third gears at part throttle.
I finally got a chance to open her up and do a second gear from 3500-7000 rpm. I actually hit the limiter at 7000 rpm, and that's with having the shiftlight come on at 6600 rpm, so I gotta get quicker shifting.
B02SS, the heads come with new pedestal mounts to give the correct shim, valve swipe. The heads really were engineered well. I can't wait to see some cooler air temps and see how quick it really is.
Pharmd, who'd you get the ARH headsers/ypipe from? A 3.5" ypipe sounds like it might be a good option that I could grow into later when I get bored with this setup and step up to larger cubes.
I'm stoked guys. I actually drove home with the ttops out, windows down, and radio off just to listen to the motor. I already had a head cam setup that performed well, and this setup is living up to my expectations and beyond.
07-30-2010, 08:42 AM
#14
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I hope you get some video soon, im sure it sounds great. I am really interested in the graph when you get it dynoed. If you break 475 without 1 7/8's headers, and EWP im going to be very impressed.
07-30-2010, 12:03 PM
#15
Honestly, it's probably going to be a dissapointment sound wise to most people because it sounds really really tame, even idling at 800 rpm. There's a little bit of cam lope, but it's hardly noticable.
I honestly think I'll clear 475 without too much drama. My guess is 481/438, but with my peak torque coming in at a very mild 4400 rpm. I intentionally went on the smaller size with the cam because I wanted a very comfortable driver, with plenty of down-low torque, which it's definitely proving to be. I have no issue cruising in 6th doing 1400rpm and rolling into the throttle. No hiccups, surging or flat feeling.
08-01-2010, 07:56 AM
#17
Friday I drove the t/a for the first time in less than 90 degree temps and the torque is phenominal. My iat's were in the high 70s and it was great. I can't beleive that the cam is as tame as it is. It's actually tamer, and has better low rpm manners than my TR224 did, but I'm sure the heads play a big part of that.
08-04-2010, 09:31 AM
#18
I broke 485rwhp with a locked ss4000, 1 3/4 qtps, stock water pump...it should not be a problem with these nice heads & being m6
