Jason99T/A

iTrader: (21)

Thanks for the compliments guys! (even you Andrew )

These are the same heads that came off of Gomer's car and are 241 castings. The heads were cleaned as best as possible and then bolted onto the motor. They were never even disassembled. Compression ratio is 10.1:1, just like any other stock LS1.

And yes, the 241s are definitely a better casting. I have flowed both sets (853s and 241s) and the 241s flow ~5-7cfm better.

I do hope to find some more area under the curve with the new lobes. I definitely feel low-end can be improved with a few extra useable HP/TQ up top as well, all while maintaining stock idle/driveability characteristics of the '02 LS6 cam.

Jason

Linear Velocity

iTrader: (1)

Jason, one question. I see that you used 918 springs and hardened. I'm going to back to bolt ons and will be putting an Ls6 cam in the car, wwas there any reason you went with the 918's over the LS6 springs? Thanks.

DaleMX

iTrader: (4)

Gomer must have had the 918 on there as Jason said the heads were never disassembled.

monkeyboy

nice work jason

SMOKIN01TA

iTrader: (10)

aint that the truth. this is what, the third go around faster each time so far. lets see if it goes past 10.50's this time around

maddboost

iTrader: (11)

You still gonna sell it? And why get ride of a LS1? Are your old solid roller GTP heads for sale?

Jason99T/A

iTrader: (21)

Linear Velocity: I would personally use 918s. The '02 LS6 springs would probably do OK. I used the 918s because the '02 springs were designed to be used with the much lighter LS6 valves. The 918s have more seat pressure and I figured this would be the better choice with the heavier LS1 valves.

I don't feel the hardened pushrods are 100% necessary though.

The heads I got from Gomer came with stock valvesprings. I assembled this motor back in August with stock heads, cam, LS1 intake manifold, stock manifolds/cats,etc. and installed it in the car. I drove around this way for ~3k miles. The car dynoed 331rwhp/353rwtq with just a lid/catback. I then installed the 918s, LS6 cam, ASP pulley, MAC headers w/ ORP, and the LS6 intake a few Sundays back.

Maddboost: I don't plan on selling it until I get out of school now, if I even do sell it. (~ 3-4 semesters left). I would only get rid of it for a Z06 or the new C6. All of my old parts have been sold.

gomer

iTrader: (13)

I wish you'd slap some drag radials on it and take it to the track the way it is now. I'd like to see what you could get out of it the way it is now.. I bet it would be pretty surprising for a "stock" type setup.

Any plans for doing that?

Jason99T/A

iTrader: (21)

Gomer, I'll try and head to the track before school starts up on the 20th. The thought has definitely crossed my mind. I still have the Wolfe 6-point cage in the car too. lol It is going to be weird launching with 3.42s. I'm so used to 7k rpm clutch dumps on slicks with ET Drags.

Jason

SMOKIN01TA

iTrader: (10)

hey jason, if you dont have any plans for the weekend you should drive out to npr with me either friday or saturday and try out your car. we'll do a heads up and see what she'll do

John B

iTrader: (10)

Jason, what length pushrod did you need to use with this cam's smaller base circle?

Jason99T/A

iTrader: (21)

John, I used TR 7.400" pushrods.

edit: I forgot to add in my orginal post that the motor was assembled with ARP rod bolts as well. I forgot to include that last night. I edited my original post.

SMOKIN01TA

iTrader: (10)

?????

Jason99T/A

iTrader: (21)

Rodney, Friday will not be a good day and I have to work Saturday. It would be a good race. We can line them up one day. Have you been back to the track with the ET Streets?

I may head to NPR Wednesday, but it won't be in the TA.

Futral

iTrader: (1)

Congrats Jason.....BUT I see all these new mods leading up to something

Did it feel any different driving with the PCM change?

Jason99T/A

iTrader: (21)

lol, if I ever get back into the hardcore drag race scene, it will be with another car. I have learned that lesson the hard way: Don't race a car you drive everyday. I just got tired of fixing broken stuff all the time. But, that's the price you pay for going fast (I guess.... ) This is the most fun I have ever had with my car and I plan to keep it like this for awhile. I bought something else to mess with now (it's getting an LS1 swap).

The car does feel better on the street with the new tune. WOT a/f was 12.0:1 with the old tune and now it leaned out to 13.3:1 on that last pull with the new one. The higher revlimiter helps alot too since I was hitting it on every shift before.

Again, thanks for making time for my car Saturday. Let me know when I need to bring it back for the cutout, collector, and bullet mufflers.

Futral

iTrader: (1)

No problem,and thanks for letting me use your car for testing purposes . I will try to get you in soon.

Everybody learns the daily driver\race car problem

AINT SKEERED

iTrader: (2)

Hey Jason, You want to go to Hattiesburg this Sunday? I am going out there this Sunday with a freind in his 04 Mach 1 and will probably take my car. I am not sure how good I can do since I broke the ankle but I can always power shift and not lift the gas,Just dont like to beet on it that hard .

If it tears up, Is any one interested in a a4 to m6 swa[

Jason99T/A

iTrader: (21)

Chad, I'll be helping a friend move into an appartment on Sunday, so that will not be a good day.

There is nothing wrong with powershifting. lol Just prepared to be rebuilding alot of T56s.

AINT SKEERED

iTrader: (2)

That is why I am not power shifting. I will give up that much off the ET to save some money. If my car was a race only car , then I would do it