LY6 street build (mostly)
my cam came in today 
Although it came in as 226/234 113(+2) vs (+3)?? I will call Geoff on Monday, maybe i goofed on that detail.
Any input for my limited knowledge on the difference in cam characteristics that will make?
Either way need to quit bs'ing and get a new timing set and headgaskets coming to me. And start recruiting some help with degreeing, and checking PtoV.
Although it came in as 226/234 113(+2) vs (+3)?? I will call Geoff on Monday, maybe i goofed on that detail. Any input for my limited knowledge on the difference in cam characteristics that will make?
Either way need to quit bs'ing and get a new timing set and headgaskets coming to me. And start recruiting some help with degreeing, and checking PtoV.
Registered User
Joined: Jun 2012
Posts: 1
Likes: 0
From: Nashville
Patrick spec'd my setup as this for my stealth 79 z28 (4000lb w/me). Told him I wanted good vacuum and idle at 750 followed by street performance. (08 LY6 pullout)
On the attached sheet, please find your custom 222/230 .597/.609" 114LSA +4 camshaft recommendation. This profile features Endurance lobes on the intake from EPS for maximum power under the curve. These lobes are very stable at high rpm with a wide variety of valve springs. For the exhaust, I have chosen the all-new LXL lobes from Comp. These lobes are specifically made for sustained high rpm road race applications and they give outstanding control under boost and will have much less sewing machine noise than typical high-lift lobes. They are excellent in their high rpm stability and will give much better valve control than the popular XE-R, LSL, LSK, XFI lobes from Comp.
To raise your compression from a stock 9.6:1 to 10.2: 1, I am recommending that you mill the heads .018" and use a thinner .040" Cometic head gasket. This will give you another 2% increase in hp and tq. You can order this cam and any other valvetrain components you wish (like springs, pushrods, timing set, etc.) from Geoff Skinner at Engine Power Systems. Any questions, please write back.
Patrick Guerra - The Guerra Group - 114 Spokane Avenue - Victoria, Tx. 77904 - 361.576.5917 office - 361.576.5928 fax - 713.306.9990 cell - www.guerragroup.com
On the attached sheet, please find your custom 222/230 .597/.609" 114LSA +4 camshaft recommendation. This profile features Endurance lobes on the intake from EPS for maximum power under the curve. These lobes are very stable at high rpm with a wide variety of valve springs. For the exhaust, I have chosen the all-new LXL lobes from Comp. These lobes are specifically made for sustained high rpm road race applications and they give outstanding control under boost and will have much less sewing machine noise than typical high-lift lobes. They are excellent in their high rpm stability and will give much better valve control than the popular XE-R, LSL, LSK, XFI lobes from Comp.
To raise your compression from a stock 9.6:1 to 10.2: 1, I am recommending that you mill the heads .018" and use a thinner .040" Cometic head gasket. This will give you another 2% increase in hp and tq. You can order this cam and any other valvetrain components you wish (like springs, pushrods, timing set, etc.) from Geoff Skinner at Engine Power Systems. Any questions, please write back.
Patrick Guerra - The Guerra Group - 114 Spokane Avenue - Victoria, Tx. 77904 - 361.576.5917 office - 361.576.5928 fax - 713.306.9990 cell - www.guerragroup.com
Staging Lane
Joined: May 2011
Posts: 96
Likes: 0
Hm, kinda browsed through. Personally, I would keep the motor stock (save yourself a lot of headache with upgrades) and put the 6l80E behind it. That first gear is pretty damn low. Thinking in only HP is old school. Go with gearing. The price difference between the 4l60e/6l80 is probably the same or less in performance upgrades, and you can keep your mpg. In fact get a pullout with the stock trans. Then just reprogram the basic tune, maybe some shift points on the stock ECM and call it good. You're probably going to have to change the rear end too so upgrade the gears also.
N I'm glad you bring this up. Actually I have pretty much abandoned the idea of using the 4l60e. As you mentioned we all know that well built 60e will respectfully live behind big power, but at what cost?
My motor came from a '08 3500 series so the original tranny was a 6l90e. I have been finding low mile <60k from 1000-1300. My understanding is that behind my 500-550 fwhp a completely stock 6l90e will be fine. The main con with the 6l's is fit, they are much deeper than the 4l's and I plan to lower my car about 2". So I have to do more homework.
The other option for me is the 4l80e. Easier swap, and with a near stock rebuild will also handle the power I expect to make. The concerns I have with the 80e is the lazy 1st gear. And before the 4l80e guys get on me I know most swaps improve there ET's, but I won't be at the track everyday.
Hm, kinda browsed through. Personally, I would keep the motor stock (save yourself a lot of headache with upgrades) and put the 6l80E behind it. That first gear is pretty damn low. Thinking in only HP is old school. Go with gearing. The price difference between the 4l60e/6l80 is probably the same or less in performance upgrades, and you can keep your mpg. In fact get a pullout with the stock trans. Then just reprogram the basic tune, maybe some shift points on the stock ECM and call it good. You're probably going to have to change the rear end too so upgrade the gears also.
My motor came from a '08 3500 series so the original tranny was a 6l90e. I have been finding low mile <60k from 1000-1300. My understanding is that behind my 500-550 fwhp a completely stock 6l90e will be fine. The main con with the 6l's is fit, they are much deeper than the 4l's and I plan to lower my car about 2". So I have to do more homework.
The other option for me is the 4l80e. Easier swap, and with a near stock rebuild will also handle the power I expect to make. The concerns I have with the 80e is the lazy 1st gear. And before the 4l80e guys get on me I know most swaps improve there ET's, but I won't be at the track everyday.
The 80 has the same first gear as a th400 and has more evenly spaced gears. With a 4L60/700r4 you get a huge rpm drop going into second gear (see numbers below) and it's not very strong. A nice converter in the 80 will more than make up for it's first gear. I got curious so I did a little research:
4L60: 3.059-1.625-1-0.696
4l80: 2.48-1.48-1-0.75 (same first 3 as th400)
th350: 2.52-1.52-1 (about the same as th400)
th200-4r: 2.74-1.57-1-0.67
It's no wonder the 200-4r has picked up quite a following. It runs without electronics, has great gearing, doesn't rob much power and can be bulletproof. Just not cheap to build one right.
Still, if you can pull it off, there is no substitute for the 6L transmission. You should be able to use the factory pcm and program to control it. If you use a 4L80, you will probably need a program from a van like mine to control it.
Last edited by futureuser; Jun 6, 2012 at 10:35 AM.
Teching In
Joined: May 2012
Posts: 15
Likes: 0
From: Somewhere in this world...
Hey gentleman, im about to turn the key in a few weeks on my 71 chevelle with a vvt ly6 6.0 with a 06 gto t56 spd. my engine came out of a 08 silverado, so i called tsp and got the vvt3 cam and springs. tsp seems to have done their homework when it come to the vvt. i was going to delete mine, but i thought what the hell try it out and see what happens. wish me luck boys...
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Verdad Gallardo Hey gentleman, im about to turn the key in a few weeks on my 71 chevelle with a vvt ly6 6.0 with a 06 gto t56 spd. my engine came out of a 08 silverado, so i called tsp and got the vvt3 cam and springs. tsp seems to have done their homework when it come to the vvt. i was going to delete mine, but i thought what the hell try it out and see what happens. wish me luck boys...
Hey gentleman, im about to turn the key in a few weeks on my 71 chevelle with a vvt ly6 6.0 with a 06 gto t56 spd. my engine came out of a 08 silverado, so i called tsp and got the vvt3 cam and springs. tsp seems to have done their homework when it come to the vvt. i was going to delete mine, but i thought what the hell try it out and see what happens. wish me luck boys...
Bought the VVT3 cam already and will be installing it soon.
Mike
It is exciting waiting to see these results, I put a lot of thought whether to keep or delete vvt good luck everyone. My cam still sits brand new in the box, since I have no plans to fire my motor up this year I have decided to focus my time and money on frame, brakes, and suspension, but ask me again tomorrow the plan might change lol. Oh well as just need to keep plugging away at it.
Hey gentleman, im about to turn the key in a few weeks on my 71 chevelle with a vvt ly6 6.0 with a 06 gto t56 spd. my engine came out of a 08 silverado, so i called tsp and got the vvt3 cam and springs. tsp seems to have done their homework when it come to the vvt. i was going to delete mine, but i thought what the hell try it out and see what happens. wish me luck boys...
Thanks,
Mike
Teching In
Joined: May 2012
Posts: 15
Likes: 0
From: Somewhere in this world...
sorry took so long but here it is check it out here are the results my ls tech amigos...lets recap, 6.0 out of a 09 silverado, t56 6spd tranny, tsp vvt3 cam, intake from a 2010 ls3 vette, pypes 2.5 street pro exhaust system and street and performance headers. let me know what you think fellas
this is the start up
this is the first run, sorry but i had to take it easy.. but i could of easily went thru 3 gears.
check out my youtube channel under coverman66 i have videos there that may save you time and money on ls swaps. thanks brothas... see you at a show...
this is the start up
this is the first run, sorry but i had to take it easy.. but i could of easily went thru 3 gears.
check out my youtube channel under coverman66 i have videos there that may save you time and money on ls swaps. thanks brothas... see you at a show...
Last edited by coverman66; Feb 13, 2013 at 06:12 PM. Reason: updating
NICE! Congratulations coverman.
Get that thang broken in. Racing season a coming, post the results if you run it. Any plans to put it up on the dyno?
My cam is still in the box
Not to late for a cam change.
Get that thang broken in. Racing season a coming, post the results if you run it. Any plans to put it up on the dyno?
My cam is still in the box
Not to late for a cam change. Teching In
Joined: May 2012
Posts: 15
Likes: 0
From: Somewhere in this world...
yea i did run it on the dyno, it was in the neighborhood of 490 rwhp before the driveshaft kicked out due to a faulty pinion yoke, which ruined the t56 output shaft, the exhaust system, driveshaft and mangled my tunnel. i bought the powr maxx mass air that i never installed..this was back in the summer. the tuner felt i could of gotten over 500hp.. the good news is the car is back together and looking better than ever.. im not going to bring it back to the dyno, those seem to try to sell you services and parts you dont need. im not building a race car, just a fast street cruiser that i can driver everyday if i want. i will run it occassionally, but im not guy that trys to shave off every 1/10 of a sec but dropping tons of money.. if i can break into the 11s, my job is complete..
hears a clip of the dyno disater day.. hard to watch ... lol
hears a clip of the dyno disater day.. hard to watch ... lol
