Jason99T/A

iTrader: (21)

We had some time at the end of the day and decided re-dyno my car again. This time we decide to totally ditch the 3" off-road y-pipe and run open headers w/ a 6" extension. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> It was just a little loud, but the car sure responded! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

I'm using the Thunder 230/224 .569/.563 111 lsa cam w/ stock heads.

We were more than pleased when it pulled 410rwhp/389rwtq!! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> The only difference since Saturday was removing the y-pipe.

Here is the dyno graph compared to Saturday's pull:

410rwhp/389rwtq - stock heads!

This was through the same Moser 12-bolt (4:30s), stock wheels, stock driveshaft, and stock flywheel. We just drove the car in, took the y-pipe off, bolted on the extensions, and put it on the dyno.

Damn, I can't wait to head back to the track! Just have to find some time to put my gears and new clutch in. School will be out in a week, so it's about to be racing season again. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

We are going to try some 1 7/8 headers next and maybe some stage 2 heads? <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" /> 10s would sure be nice in the summer heat. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Jason

<small>[ May 07, 2002, 09:55 PM: Message edited by: Jason99T/A ]</small>

XtraCajunSS

iTrader: (2)

Tater! even if it didn't make a single horsepower more, it was worth it just to hear the thing run. That is one bad a$$ sounding cam... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Awesome job on the 410. It is truly amazing what these cars are capable of. <img border="0" alt="[Firebird]" title="" src="graemlins/formula.gif" />

Shane

Jason99T/A

iTrader: (21)

Thanks Shane! It sure was sweet hearing it w/ open headers. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

I think there is a little left in the car as far as tuning goes. We haven't even touched the program since the 224/224 cam. The A/F was around 13.0:1 and I wouldn't mine leaning it out a little more and mix some race gas in. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Scalpel

iTrader: (4)

How does this cam sound at idle and is it streetable?

Onyx LS1

iTrader: (5)

damn Jason! those are some amazing numbers through your drivetrain. I can't wait to see what it does with some ported heads!
all of your work will pay off as soon as you make it to the track <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
way to go man.
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

Jason99T/A

iTrader: (21)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by NastyC5:
<strong>How does this cam sound at idle and is it streetable?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sound clips

The cam was just as driveable as my B1 used to be. It does surge at a slightly higher RPM compared to the TR 224. However, it is nothing that bothers me in the least. I cruise around town in 6th gear at 1200 rpms with no problems. I drive the car everyday and plan to keep it that way. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Thanks Justin! The track is all that matters to me, as you well know. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> I will be very exicited to head back out there. It is nice having a spare block sitting around because I have literally killed this thing in the past few days. LOL It makes pushing the limit on the motors a little less stressful when you have spare parts. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ May 07, 2002, 10:20 PM: Message edited by: Jason99T/A ]</small>

XtraCajunSS

iTrader: (2)

Tater,

You freakin DYNO *****! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Scalpel

iTrader: (4)

What do you mean in regards to "surging"? Thanks.

BTW, on that rev with the Hooker on, sounds like some C5 Vettes <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ May 07, 2002, 10:30 PM: Message edited by: NastyC5 ]</small>

Jason99T/A

iTrader: (21)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by NastyC5:
<strong>What do you mean in regards to "surging"? Thanks.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm talking about cam surge. When you drive around in a parking lot in 1st gear with your foot off the gas and your RPMs are around 1k, sometimes the car will buck. This is very normal with aftermarket cams. The 230/224 seems to surge maybe 100rpms higher than the 224 did. However, you learn to drive around it after a day or so. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Trevor @ Texas Speed & Perf.

iTrader: (3)

Damn Jason, that is some UNREAL power! I can't believe that you picked up an additional 9 RWHP by dropping the 3" y-pipe! <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> That cam really likes to breathe! I no more have my 224 XE-R in, and now you're talking about this awesome cam that didn't sacrifice any bottom-end power but gained on the top-end. <sigh> I guess I'm going to get good at cam swaps, too. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> I need to dial in my current setup before I start swapping cams again. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Great results! I cannot wait to see how well it performs at the track. Are you trying to outrun the solid-roller setup? <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

Scalpel

iTrader: (4)

What does your cam idle at?

Scalpel

iTrader: (4)

I think I'm gonna get this for my C5. How would this cam preform being a split duration on an engine with ported heads?

<small>[ May 07, 2002, 10:52 PM: Message edited by: NastyC5 ]</small>

Jason99T/A

iTrader: (21)

Thanks Trevor! I would expect the gains I saw if I was using a crappy y-pipe. However, this is one NICE 3" mandrel bent off-road w/ a 3.5" Flowmaster collector I am using. It flows about as good as you are going to get in terms of a y-pipe. Geoff thought I would see the gains I saw, but I was a little hesitant. I guess he was right. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I'm just shooting for a 11.4x in the heat. Anything quicker than that will be great. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I'm still using the factory M6 idle speed (I think 850?).

HP-GURU

STOP.

Get your car LS1EDIT'd and see where you stand, the results might surprise you. YOu might gain very little from porting except shifting the curves over to the right and dropping lower speed tq/hp a small amount.

If you stand @ 420rwhp/400rwtq with LS1EDIT you stand very little to gain.

Trevor @ Texas Speed & Perf.

iTrader: (3)

</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>I'm just shooting for a 11.4x in the heat. Anything quicker than that will be great. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">totally unbelievable! Hell, I'll be pumped if my setup can repeat 11.70's in the heat at Super Chevy. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> Be sure to get some video. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Patrick G

iTrader: (14)

Holy Smokes Jason, that's huge...410 with stock heads? Muwahahaha!! Seeing that you're gaining some good power up high, I might back off a few degrees of advance on my 230/224 111LSA cam and put it in at 112 instead of 109. Should be worth a few more ponies up high. Looks like I need a Thunder Throttle Body and a better header/y-pipe setup if I'm going to stay in front of you, haha.

Congrats to you and Geoff. Y'all are really on to something with that "reverse split" cam. Kudos for sharing cam specs to enthusiasts on the internet too. Alot of companies try to keep their cam specs secret...guarded like the recipe to Coca Cola or something. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />

I'd much rather do business with a company who's got nothing to hide. Thanks for sharing the "secrets". <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

Terry Burger

iTrader: (4)

I'm really thinking about a 236/229 112ls .600 lift type cam with some light weight intake valves. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Patrick G

iTrader: (14)

Hey Terry, does this now mean that MMS is going to start copying cams from Thunder Racing? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> Sorry man, I just couldn't resist. <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />

<small>[ May 07, 2002, 11:08 PM: Message edited by: Patrick G ]</small>

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 Terry Burger:
<strong>I'm really thinking about a 236/229 112ls .600 lift type cam with some light weight intake valves. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Titanium does kick ***.

I could care less if I needed them or not... Just knowing I could spin the thing to 9K+ RPM... <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

<small>[ May 07, 2002, 11:09 PM: Message edited by: XtraCajunSS ]</small>

1FAST98Z

Is there anyway i can get a hold of one of these cams? If i can i will order one right away. Can one of you TR groupies get one for me? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I've got 1600 bucks burning a big fat whole in my pocket. <img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" />

thanks
Ryan