Scalpel

iTrader: (4)

Terry, how much lope or lack of does yoru car have compared to stock?

Terry Burger

iTrader: (4)

Nasty it's hard to describe. It pulls 15" of vacuum at ~900rpm.

My car is pretty quiet at idle with the cutouts closed, doesn't shake much, rarely stalls, the tach doesn't bounce around, etc. Not sure how else to describe it. It's really easy for me to live with, which is why I'm going to try even more cam!

CamaroSS_2002

iTrader: (4)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Jason99T/A:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by StreetStalkerZ:
<strong>Damn! Very Very nice jason <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> I would love to hear that 111LSA <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> You now have the title of "cam changeing *****" <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">lol, this was cam #7. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

List of my old cams:
#1 - '99 stock cam
#2 - MTI/Lunati B1 (221/221 .558/.558 114lsa)
#3 - TR 230/230 .612/.612 112lsa solid roller
#4 - '99 stock cam
#5 - TR 224/224 114lsa
#6 - TR 227/224 114lsa
#7 - TR 230/224 111lsa
#8 - ???? (stay tuned this summer as plans are already made) <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> LOL</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you could clarify something for me please.
Cam #6 -- Is this the 224/227 .563/.569 114 LSA that Thunder racing just put up as NEW on their website? I really want a custom cam that'll work good for my future supercharger and 394rwhp with stock heads out of that cam is a great start imho <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ May 10, 2002, 09:53 PM: Message edited by: CamaroSS_2002 ]</small>

Jason99T/A

iTrader: (21)

The cam you listed was similar to what I used. However, mine was one of the reverse splits (227/224) and the one you are talking about is biased towards the exhaust (224/227). The cam you listed is better suited for your application (s/c) than the one I was using. It still is going to make very nice power n/a.

Jason

VINCE

iTrader: (1)

I do not think personally the cam would idle worse just because it was 230/230.. I think the tuning would be easier to do with the single pattern to smooth it out. However, you might lose a little torque down low, but until someone tries this out we are just guessing..

XtraCajunSS

iTrader: (2)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by VINCE:
<strong>I do not think personally the cam would idle worse just because it was 230/230.. I think the tuning would be easier to do with the single pattern to smooth it out. However, you might lose a little torque down low, but until someone tries this out we are just guessing..</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Stay tuned... It just may happen soon.

Shane

VINCE

iTrader: (1)

The reason why I am saying the above is because Terry said his new MMS229 idles fine. I do not know what he calls fine, but 230 is only one more degree..

Terry Burger

iTrader: (4)

Guys its so funny how everyone accepts these subjective words "fine", "smooth", and "streetable" when talking about cam idles. I pull 15" of vacuum at 900-950rpm. That is how my current cam idles. Measure your vacuum and compare. The new cam I am looking at will be in the 12"@900rpm range, starting to get choppy in my book.

XtraCajunSS

iTrader: (2)

Ok this is scary, I agree with Terry. Jason's car has a definite lope at 850rpm idle. (Check out the sound clips) If he were to bump that up to 900-950rpm, I am sure it would smooth out. I'll see about checking manifold vacuum on Jason's car tonight. I know he doesn't want to bump his idle up though... His car sounds awesome as is. Remember, its all subjective until you put numbers to it...

Shane

Fast SS on TNT

iTrader: (1)

Feeling the need to swap cams now...oh this addiction is going to be the end of me. I just checked the price at ThunderRacing.com needless to say, I am looking for my visa card now

VAP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TimZ28:
<strong>I don't disagree with the idea the 230 will make more power... it will. But it is not accurate to make the conclusion that the new found power has anything due to the reverse-split. So far is that an intake lobe of 230 will make more power at the top end versus the 224 intake lobe but haven't given any proof that having less exhaust duration had any impact here.

I'm not trying to bust your ***** but I do think a more valid comparison is needed.

Tim</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" alt="[boring]" title="" src="graemlins/gr_zzz.gif" /> I agree 100% the 230 @.050" cam was always going to make power - In my opinion you are putting too much emphasis on the reverse split -
But regardless you are having a go & I applaude you for that.
240 / 240 @ .050 " 108 l/c on a 105 intake centreline WILL go like a bat out of hell !!! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
The narrower lobe centre will make more power,but as I said before you'll need more duration - hence the 240 @ .050"
Try this - IF you'll have enough piston to valve is another thing though.
I believe an engine is an engine and they all have the same needs & wants. Stop thinking the LS1 is so very different than any other engine.

Hey but thats just my opinion and once again I applaude your efforts to find the bottom line. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

VINCE

iTrader: (1)

I can care less about what someones vacuum is. That means nothing to the majority of us who do not have access to do a vacuum test. I am talking about plain old idle quality and you know what I mean. If when you crank the car up do you have to hold the gas for a while before the car would settle? Does the car shake when you are sitting at a light? Is your shifter **** bobbing all over the place? Does it appear to the people behind you you are dancing in the car at a stop light? When you pull up to a stop light with a bunch of cars does everyone turn and look at you? You guys know what we mean when we ask about idle quality. Get off the VACUUM stuff. High blood pressure means nothing if you cant actually measure it with a blood pressure cuff, but you can feel when something is suspect. My T1 loped, but it idled almost like my stock cam. I have many that can vouch for that. My idle speed was set to 950rpm. A little bit higher than stock.. I cruised around town in 5th gear and the only surging is if I went below 1500rpm.. Gas mileage was excellent. Almost 30mpg on the highway and between 20 and 24mpg in the city.

The Guy in MY 99TA

Nice numbers Jason!!! You keep fiddling diddling around and your gunna be way up there.

I could I find out what would be a good cam for my car or the set-up I want to run???

Josh S.

Scalpel

iTrader: (4)

How are cold start-ups with this cam with and without the AC on? Also, could you record a small video clip of the car idling and show the shifter's motion as it idles? Thanks.

Jason99T/A

iTrader: (21)

Cold starts are fine. The car starts right up and does not hunt for idle. Only when the car is warm will it try to hunt. It only does this for a second or so and then idles just fine.

I'll try and get a sound clip for you inside the car. It might be middle of the week since I have finals at school the whole damn week. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />

VINCE

iTrader: (1)

There is always finals eh Jason.. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> It is funny how when our cars are warm they have to hunt to idle. My T1 did the same thing. All this testing is great though. Gives the consumer more choices..

Scalpel

iTrader: (4)

Why does this cam hunt for idle on warm startups? Thanks.

VINCE

iTrader: (1)

Most cammed cars for some reason do that. It is the norm in my opinion. It only does it for about 10 secs.. No real discomfort at all..

ChiTownSS

Guys, I've been reading the posts on this Thunder "split duration" cam and the #'s are just plain awesome!

I have some questions:
1.) Would the 230/224 work well if I were to use some spray (N20)?
2.& 3.) How would this cam work with ported stock heads? & are there any certain specs the heads should be ported to? I have found a great machine shop that can port my heads for me.

Also, I have the LS6 intake (2001 SS). Should I get the intake ported too?

Basically, I want to go with one of these cams (maybe something better on idle (112, 114 LSA))from Thunder Racing, ported stock heads, LS6 intake (ported?), and leaving open the possibility of spraying with a 100 shot of N20. I NEED it to be streetable and PASS emissions. Is this possible? Please tell me it is!
Thanks guys!

<small>[ May 20, 2002, 01:56 PM: Message edited by: ChiTownSS ]</small>

AlonzoVersion 1.0

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by ChiTownSS:
<strong>Guys, I've been reading the posts on this Thunder "split duration" cam and the #'s are just plain awesome!

I have some questions:
1.) Would the 230/224 work well if I were to use some spray (N20)?
2.& 3.) How would this cam work with ported stock heads? & are there any certain specs the heads should be ported to? I have found a great machine shop that can port my heads for me.

Also, I have the LS6 intake (2001 SS). Should I get the intake ported too?

Basically, I want to go with one of these cams (maybe something better on idle (112, 114 LSA))from Thunder Racing, ported stock heads, LS6 intake (ported?), and leaving open the possibility of spraying with a 100 shot of N20. I NEED it to be streetable and PASS emissions. Is this possible? Please tell me it is!
Thanks guys!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you want emissions bro then I would go with the 224/224 on a 114 depending upon how tight chi town is.I would ask pro stock john.He can tell you what will work.