GTP LS1

I would like some opinions on this cam spring setup. Would there be long term reliability problems with this setup?

Are double springs recommended with this cam?

Thanks in advance.

VINCE

iTrader: (1)

I run double springs with my 226/.585 lsa 112 XE-R cam..

GTP LS1

Thanks for the info. Vince.

So far I have located three people with the 226/.591 cam and two have broken 918 springs:

Speed Hog - broke a spring - needed new engine
TransAmaniac - broke a spring - engine ok?

Moose has this cam but has not broken a spring

<small>[ August 22, 2002, 10:33 AM: Message edited by: ARE LS1 ]</small>

DERTY

ARE Put 944-17 doubles in my heads that run with my 224/224 .581 114LSA cam.

JurisAg02

I have had my 918's in there for three thousand miles with my "PIG" cam(591/591 226/226 112)...no probs so far <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Rick
<img border="0" alt="[Firebird]" title="" src="graemlins/formula.gif" />

GTP LS1

Thanks PhatT/A:

That gives us:

Speed Hog - broke a spring - needed new engine
TransAmaniac - broke a spring - engine ok?

Moose - no problems at - 2,000 miles
PhatT/A - no problems at - 3,000 miles

2 for 2

Badazzvette

Derty, how's your valvetrain noise? Mine is crazy <img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" /> Do you happen to know what the base circle measurement is on that cam. I called Comp and they couldn't tell me, even with the part number and serial no of my cam. WTF? <img border="0" alt="[bullshit]" title="" src="graemlins/gr_bs.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by derty:
<strong>ARE Put 944-17 doubles in my heads that run with my 224/224 .581 114LSA cam.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">

Linear Velocity

iTrader: (1)

Similiar cam to yours, 227/227 .591/.591 113 LSA. I have 987 dual springs with no problems at all, I wouldn't even touch the 918's, 2 of my friends both had way less aggressive cams and had the springs fail on them after several days, one needs a new motor a result <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> . Just food for thought <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> .

Fenris Ulf

Ive never had a failure with a 918 spring and ran a cam more aggressive than the Pig for 7k miles. Just my $.02

DERTY

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Badazzvette:
<strong>Derty, how's your valvetrain noise? Mine is crazy <img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" /> Do you happen to know what the base circle measurement is on that cam. I called Comp and they couldn't tell me, even with the part number and serial no of my cam. WTF? <img border="0" alt="[bullshit]" title="" src="graemlins/gr_bs.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by derty:
<strong>ARE Put 944-17 doubles in my heads that run with my 224/224 .581 114LSA cam.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"></strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I replied to your other post. Noise is nowhere near yours. Yes it sounds like a very quiet sewing machine. I don't have my spec card here. When I get home tonight I can pull the details off it. I also don't remember the pushrod length, but they were not the same size as the stock rods if I remember correctly.

LEATHL_WS6

I broke one. Shattered a piston and screwed up my head.

98TAauto

iTrader: (2)

ARE: dont forget I broke one <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> whether the motor is fine i will not know for a few days <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />

but i only had a 224 .563 114 cam

<small>[ August 22, 2002, 01:40 PM: Message edited by: 98TAauto ]</small>

GeorgeC

I ran the same cam with 918 springs... I didn't have that combo together for a long time, but had no problems while it was in the car.

GTP LS1

98TAauto:

Hope your car is ok. Is Jason going to look at it?

I broke a 941 a few months back but my engine is ok.

Whistler

iTrader: (46)

Is head machining needed to run the double springs you are talking about?

GTP LS1

Whistler:

Machine work on the heads is necessary for the double springs.

SPEED DOG

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by ARE LS1:
<strong>I would like some opinions on this cam spring setup. Would there be long term reliability problems with this setup?

Are double springs recommended with this cam?

Thanks in advance.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I broke a 918 on a new LS6 ARE H/C setup (see sig below). Cam's a bit wilder than yours. All sorts of head/piston damage: engine's being rebuilt as an ARE 436.

CompCams seems to think there's no problem with the 918's, despite a number of posts about this.

I'd go with the duals if you want some peace of mind, though the singles do allow slightly more radical port work (per Wade, Nick at ARE).

<small>[ August 23, 2002, 07:40 AM: Message edited by: SPEED DOG ]</small>

ls1290

iTrader: (20)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Silver Surfer:
<strong>I have 987 dual springs with no problems at all</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">How much lift can they handle?

Silver Slayer

iTrader: (13)

I am running the 918's with a 224 and over.600" lift with no problems. I have a little valve train noise cruising at lower RPMs, but other than that it is not bad.

Kevin