MeentSS02

iTrader: (11)

That would be my other guess...that's a lot of timing he's running, especially now that it's getting toasty outside.

MeentSS02

iTrader: (11)

Oh, and BTW, thanks for taking the time (and the money ) to provide us with this info. Very valuable for everyone in this community. I've learned a metric **** ton of info (although I still don't know much) just from your threads on here.

HOSS

iTrader: (12)

Again, excellent post. Nice numbers Patrick, looks like you picked up that midrange that you were looking for

cantdrv65

iTrader: (3)

I saw something VERY similar almost exactly like that on MTIs dyno. Jayson told me it was valvetrain instability, but now I have to wonder....My car showed zero knock retard, so it wasnt timing related. Im going to try a little longer pushrod on mine just for grins, BUT Id like to see this issue show up on two DIFFERENT dynos also.

HAULNTA

Great numbers! I threw my numbers on for fun.
..TRak cam..XE-R cam..Torque Cam…My Cam before pulley(rwhp/rwtq)
2500...130/290..128/270...150/320…147/315
3000...191/335..183/320...200/350…202/352
3500...247/370..233/350...247/370…250/371
4000...289/380..282/370...290/382…305/403
4500...343/400..338/395...345/402…356/416
4800...367/402..366/400...375/410…401/430
5000...383/402..381/400...387/406…405/423
5500...419/400..416/398...428/409…433/415
6000...455/398..453/397...452/396…447/398
6300...461/384..458/382...459/383…463/381
6500...461/372..458/370...459/371…461/376
7000...454/341..452/339...446/335…NA/NA
I know this is not a fair comparison because it was not on the same dyno, but it is fun to look at.

cantdrv65

iTrader: (3)

Id say thats very interesting! Your cam makes excellent torque on a 114. Seems to carry up high well also.

algws6

iTrader: (3)

not to mention he is going through a 12 bolt with steeper gears.

WS6FirebirdTA00

iTrader: (33)

Good numbers man, next time I want to test a cam I will check with you to see if you ran it haha

HAULNTA

And a 295/35/18 on 18" Boyds.

beardWS6

iTrader: (1)

Nice numbers fellas!

JZ'sTA

iTrader: (23)

Not to be negative but I think the different dyno has a lot to do with it.
I would bet the same dyno and same day your car would make a considerable less amount of power and torque.

cantdrv65

iTrader: (3)

Ill be the first to refute that statement.... Theroy and reality can have significant differences. This dyno graph shows evidence of valvetrain instability above 6500 rpms, meaning the 921s may not be enough spring for this LSK lobe. So there definitely IS COMPROMISES....

2c5s

iTrader: (11)

I put my LSK 223/227 111+0 in today. Dyno results next week. Previous cam was a lsk223 intake xer228 exhaust 116+3. No other changes to the V except the cam. Old cam dynoed 442 rwhp and 397 and 399 rwt, same dyno, 2 week separation form the runs.

408WS6

iTrader: (1)

I like it


I LOVE that midrange torque better than peak power

WS6TransAm01

iTrader: (13)

Great #'s!!!

At the top of the RPM band, are you breaking up due to lack of fuel or are you floating the valves? Graph is very spikey... It is a whole lot of lift after all, not sure which springs whould live up to that on a constant basis.

Good Luck!

Vertigo

iTrader: (1)

What springs are you using for such a high lift on the new TR cam?

s346k

iTrader: (4)

could lessening the lift help deal with the valvetrain instability at 6,500+? ...if indeed that is why the graph got all wacky.

SSilverSSurfer

iTrader: (8)

those are some crazy tests you ran...i love the lift on that cam with the duration its insane

pdd

iTrader: (3)

what a great thread. thanks Patrick for the time and effort to show us each cam. i hope i have similiar results when i finally get some heads

Patrick G

iTrader: (14)

I'm using the AFR #8019 spring. They're a little beefier than Comp 921s. About 158 lbs. on the seat and 440 over the nose. Because I'm running heavy 2.08 intake valves, I need a beefier spring than most. My AFR 205s with the lighter 2.02 valves were happy reving to 7000 with the Comp 921 springs (shimmed to within .050" of coil bind of course).