Opinions please - LS1 Rockers and/or cam
Opinions please - LS1 Rockers and/or cam
Author
Discussion

swordfishcoupe

Original Poster:

503 posts

251 months

Thursday 3rd December 2009
quotequote all
Hello,

Just looking for opinions, please. As some of you know I have an Odyssey LS1 car, full Wortec exhauset, stock intake with the extra hole etc plus Noltec engine mounts. I am one of the mad LS1 drivers who has been picking on Roger re installation options etc for the Magic Cam, but recently thought while possibly doing that (while are is off the road for week +) maybe I should get some SLP rockers or similar at the same time.

I have the pricing now and I am having major second thoughts about everything, i.e. should I stop playing with it as will soon be coming upto its 4th birthday or try one of the solutions. Both would mean a new Wortec intake or similar (http://marylandspeed.com/vararam-cold It is my daily driver and has done me proud so far.

Anyone any experience of the LS1 and rockers upgrades ? Before everyone says stop and buy at S/C I would love to buy one, but financially the car is worth say £10K+ and £7K on a S/C is silly.

Thanks
Steven

Trailermasher

730 posts

253 months

Thursday 3rd December 2009
quotequote all
Could do you an intercooled s/c (122) for half that!

Rockers and cam are always plausible additions, but, as always, it depends on what you want.

If you are thinking of a s/c at a later date, you may require a different cam choice though!

Edited by Trailermasher on Thursday 3rd December 21:51

stevieturbo

18,103 posts

278 months

Thursday 3rd December 2009
quotequote all
The only reason to change standard rockers is if you wanted higher lift ones.

But if you're mentioning camshaft there, then there is no reason to change rockers, as you'll obviously purchase a camshaft with the amount of lift you want.

after_shock

8,751 posts

251 months

Thursday 3rd December 2009
quotequote all
Trailermasher said:
Could do you an intercooled s/c (122) for half that!

Rockers and cam are always plausible additions, but, as always, it depends on what you want.

If you are thinking of a s/c at a later date, you may require a different cam choice though!

Edited by Trailermasher on Thursday 3rd December 21:51


How much just for the intercooler?? wink wink

after_shock

8,751 posts

251 months

Thursday 3rd December 2009
quotequote all
From my research into the cam upgrade on the LS2 the rockers constantly came up as a really good upgrade for the LS1 but not the LS2.

For the cost of doing the rockers id probably do the lot and do those at the same time.

What sort of cost are you looking at for the cam install? If you dont mind me asking.

swordfishcoupe

Original Poster:

503 posts

251 months

Thursday 3rd December 2009
quotequote all
Hi Aftershock

price, LS2 Magic cam is www.monkfishperformance.co.uk/2005vxrmonaroframeset.html plus extra for the Wortec intake etc. My biggest problem is that would be without the car for almost 2 weeks and I am one of those people whom am always on pins when driving someone elses car.

Hi Trailermaster, I am guessing you have given up on your S/C for the moment ? Second hand Superchargers on VZ LS1 Monaros are a problem due to weird electronic throttle bodies and the need of a special bracket (I know RapidGB do them). But if that problem did not exist I would probably bit your hand & arm off for the 122 assuming in good condition !! I would than just need to get it fitted etc. I have spent about 10 mins driving a S/C Monaro in Rogers old CV8 demo car and could not stop laughing.

Steve/anyone - with the high lift rockers I believe not so much of an upgrade (10-15 BHP) on their own but good with other upgrades, I just wonder if I will notice the difference !!

Thanks guys

after_shock

8,751 posts

251 months

Thursday 3rd December 2009
quotequote all
Maybes a daft question but why 2 weeks to do it?? Took all of 3days for the install on mine and the SC had to be removed.

swordfishcoupe

Original Poster:

503 posts

251 months

Thursday 3rd December 2009
quotequote all
Hi Aftershock,

Not a silly question at all - Monkfish and Paul @ Wortec have got the installation and tuning for the LS2 engines down to perfection from what I know, LS1 has not been tested with that Cam or setup, so needs extra time to make the tune spot on. Which is why I hoped Col & Mel would be the first guinea pigs rather than me - but I am always up for an experiment like my KW coilovers !!

Cheers
Steven

swordfishcoupe

Original Poster:

503 posts

251 months

Thursday 3rd December 2009
quotequote all
Hi After Shock,

Sorry, so you have a magic cam fitted on yours then ? If so how much of an improvement did you see with the cam ? Obviously not the same engine and no S/C but just wondering.

Thanks
Steven

ringram

14,702 posts

279 months

Thursday 3rd December 2009
quotequote all
Guys with cam only at the last dyno day were putting down more than some of the SC LS2 guys.

There are bad blower setups and good cam setups and vica versa.

after_shock

8,751 posts

251 months

Thursday 3rd December 2009
quotequote all
Hi no didnt get the install done at Monkfish, had a few other bits done at the same time so the overall improvement it made I cant say a before and after if that makes sense.

My engines got alot more to give but the lack of an intercooler has limited it somewhat due to the intake temps getting rather excited, however its massively more driveable, the throttle response is so much sharper and the noise is fantastic

007 VXR

64,187 posts

218 months

Thursday 3rd December 2009
quotequote all
ringram said:
Guys with cam only at the last dyno day were putting down more than some of the SC LS2 guys.

There are bad blower setups and good cam setups and vica versa.
to be fair some s/c guys had probs on the day .
and the guys that had cam done and did well,
had more than just a cam ..

i take it you are not saying that an ls1 with cam , will do better that an ls2 with S/C at a dyno day ..? scratchchin


or am i missing the point you are trying to make ??

Edited by 007 VXR on Thursday 3rd December 23:48


Edited by 007 VXR on Thursday 3rd December 23:53

stevieturbo

18,103 posts

278 months

Thursday 3rd December 2009
quotequote all
There are no performance benefits to be gained from removing standard ratio rockers and replacing with aftermarket rockers of the same ratio.

Trailermasher

730 posts

253 months

Friday 4th December 2009
quotequote all
after shock - YHM.

swordfish - not giving up on the supercharger, looking at options on a forged build and will probably need LS3 port heads, meaning my 122 wont fit. Shame I can't just change the manifold under it. The blower itself has just been fully re-built with whole new nose and gear sections - no refurb'd parts!

I love having the s/c, the low down torque always puts a smile on my face. If I could get LS2 heads flowing 370+cfm@.500", I'd wouldn't need to change the blower at all.

Also, you'd keep you own throttle body, no need to change to an electric one??? And Harrop 122 has offset intake to accommodate direct mounting of either TB.

Trailermasher

730 posts

253 months

Friday 4th December 2009
quotequote all
ringram said:
Guys with cam only at the last dyno day were putting down more than some of the SC LS2 guys.

There are bad blower setups and good cam setups and vica versa.
Untuned on engine and charger with less than 1000 miles on it and still the best torque curve at Dyno Day (my opinion of course biggrin) and on Tesco's cheapest paperbag .

Rich, I will probably need to get in touch tomorrow.

swordfishcoupe

Original Poster:

503 posts

251 months

Friday 4th December 2009
quotequote all
Hi Martin,

You are making me tempted about your S/C now, I will give Roger a call later and see what exactly the problem with the our throttle bodies (I believe is it a different bracket or plate required for the S/C or a throttle body plate). Your S/C sounds very well looksed after

Cheers
Steven

Bonnie and Clyde

11,701 posts

223 months

Friday 4th December 2009
quotequote all
Steven, just go for the cam for now See how you get on with that There's no point going Sc'ed unless your going to change the diff again
If you don't hurry we may be the first

ringram

14,702 posts

279 months

Friday 4th December 2009
quotequote all
007 VXR said:
to be fair some s/c guys had probs on the day .
Really? Some of the guys I spoke to said their setups felt no different to normal..

If you mean by heatsoak etc, then its not a problem of the day its a problem of the setup.

Every dyno day there is always the same excuse.

If a PD blower setup was so good then where are the track timeslips to prove it? Sure it might be torquier than stock, if thats all you want, then cool. Dont make up feeble excuses why your dyno results are rubbish and your timeslips are shown in minutes. Just accept a sub optimal setup.

As mentioned rockers are only useful as a cheap DIY mod if you go from 1.7 to say 1.85. If you are having work done etc, then forget them and replace the cam.

007 VXR

64,187 posts

218 months

Friday 4th December 2009
quotequote all


[/quote]

Dont make up feeble excuses why your dyno results are rubbish and your timeslips are shown in minutes. Just accept a sub optimal setup.

.
[/quote]


iam not making any excuses .

TerryS

1,382 posts

279 months

Friday 4th December 2009
quotequote all
ringram said:
If you mean by heatsoak etc, then its not a problem of the day its a problem of the setup.
If can't see heat soak being a problem as nearly every SC car there had a good long time to cool down before running, and the ambient temps weren't exactly high!

Admit it Rich, your just scared of my baby 5.7 @ 8psi wink