NeverT00fast

iTrader: (4)

I didn't get a cam card when I purchased my cam, and now I need the full specs so I can calculate my DCR.

I need the degree for ABDC to calculate, but I'll take the full specs if you got them. This is for the 237/242 603/609 113LSA. TIA!

N4cer

iTrader: (11)

So is that really a 236 intake lobe? Since Comp's lobes are even numbered it's either a 236 or 238 lobe, and the lift is probably really .602.

I'm not sure how much advance is ground in, but if you use the DCR calcualtor, I'd use these values since they're closer to Comp's lobes that they actually use:
236/242
.602/.610
113 +?

NeverT00fast

iTrader: (4)

It's 113 +0. But I think I also need the degree for ABDC to use the DCR caculator.

N4cer

iTrader: (11)

Nope. You punch in the duration, lift, LSA, and advance. It does the rest, although you have to know what head gasket you're using.

NeverT00fast

iTrader: (4)

Hmm, it's a little different than the calulator that I found. Do you have a link for the one that you use?

N4cer

iTrader: (11)

https://ls1tech.com/forums/generation-iii-internal-engine/630637-my-dcr-calculator-if-you-have-comp-grind-doesn-t-get-any-easier-than.html

NeverT00fast

iTrader: (4)

Great, thanks alot.

Does BTDC, ADBC, or ATDC values change from cam to cam?

N4cer

iTrader: (11)

For what? IVC? IVO? EVC? EVO? Just use the calc. You'll see.

NHRAFORMULA00

iTrader: (2)

NO CAM CARD-boy does that sound familiar,called them up when i recieved my cam and heads,they said, we will mail it to you .Never happened! Called them to order more parts 2 weeks later,still no card,asked them to FAX it to my work number,NEVER HAPPENED.I just put it in and clayed the piston, got .075 intake,.085 exhast clearance.As far as advance, TSP told me MOST of there cams have 1 degree ground in.

Kent1

I have the MS3 Can sitting in a box and I have no cam card either. Disappointed for the amount of funds we spend at the speed shops. Oh well!!

NeverT00fast

iTrader: (4)

What kind of heads are you running? The PTV Is with the MS3 or another cam?

PREDATOR-Z

Man, that is tight for street, especialy M6

SilverSS

iTrader: (30)

Off of MS3 Cam card:

Camshaft type: GM LS1
Grind: TSP-MS3
Duration @ .050" Int. 237 / Ext. 242
Advertised Duration: Int. 286 / Ext. 291
Lobe lift: Intake 0.355 / Ext. 0.3585
Gross valve lift: Int. 0.603 / Ext. 0.609
Lobe seperation: 113
Advance ground in: 0
Valve timing @ .050":
Intake Open = 6 BTDC Close = 51 ABDC
Exhaust Open = 54 BBDC Close = 8 ATDC

N4cer

iTrader: (11)

That's A Horribly Late Ivc. And Still Doesn't Answer About It Not Matching Comp's Lobes. I Am Under The Impression Thatthey Only Grind The Lobes Offered In Their Catalog.

NeverT00fast

iTrader: (4)

Thanks man!!!

NHRAFORMULA00

iTrader: (2)

automatic trans not a manual here,i have seen small block chevys run as close as.050-.055 intake clearance at 7500 rpm.not saying i like it,but i have seen worse.tsp sinks the valves a little when you order the ms3 and the 5.3 -stage 2.5 with 2.02 valves just for this combo to work.He said they sell a lot of this combination,thats why i went with the truck heads over the ls6 heads. never too last yes ms3.on a side note my brother is an engine builder,has his own shop now for about 20 years,and every cam he orders from comp comes with a cam card.

brad8266

iTrader: (23)

Damn that PTV is tight, too tight IMO and from anything else I have read. Pray the piston and valves dont ever meet. .080 intake .100 exhaust seems to be the standard. And that tight on a street car with springs that may wear or any valve float and say bye to your engine.

NHRAFORMULA00

iTrader: (2)

not a street car,im not new too the race seen,read the above post.we have race cars that run in the high 8 second at 150 on motor alone.yes its tight and not for the normal guys.maybe TSP can respond to these concerns of those who are worried,i just was a little unhappy at not getting a cam card,this is gonna be a track only car from hear on.