Other than the obvious ones (Kent, Piper, Newman etc), what other uprated valve springs are available for this engine??

Anyone know anything about the Puma Racing ones? I can't seem to get hold of the guy as his email address always rejects my mails and I would quite like to deal with someone that wants to be dealt with!

Any help appreciated.

 

Ring the dude up, we often get problems with e-mails.

 

Puma Racing Spring setup:





Different seats and completely different valve seals.

I never had any problems with the setup, obviously any CVH with hydraulic tappets will start losing power at about 6500-7000, and that camshafts get eaten at these revs is a well known fact.

Best to ring up, he's a helpful chap, but very busy, and I'm sure he gets loads of questions about the articles he wrote, so probably doesn't even look at emails at all.

Before looking at other springs I think it would be better to get some roller rockers made up, there have been threads about them many times but nobody seems to want to make them. Maybe ask Titan nicely. I'm sure it would also be possible to get a roller tappet and cam done, I know of someone running something like that over here, he seems to have cured the cam problem.

 

He doesn't publish his phone number though?

Anyone know what poundage his springs are?

The cam is a solid-follower profile BTW.

 

Also, looking at that, is he not just using a lighter (and perhaps more commonly available spring) and increasing the poundage with a thick base washer?

I can't think of any other reason for using that washer/seal method?

I want something that has slightly higher poundage than the Newman doubles.

 

The main reason for the seals is that they are of a higher quality, and the washer is to ensure proper seating of the springs.

I'll have to dig out the invoice to find his number for you.

 

That would be appreciated. Thanks.

 

someone please make roller rockers

 

Is that really the answer though?

 

well i want a set




so yes

 

LOL.

 

is there anywhere where i could get drawings or something to get some machined up from



i think genesis engineering contemplated making some



would cost a fortune just me on me own thou

 

When i snapped a valve spring in my fez rs1800 i got double valve springs from rally design dunno what poundage they are any good But they do them

 

dunno if http://www.catcams.be/index.htm will be able to help?
never really heard of them getting used in the uk but quite popular abroad i think

 

I want a set of double valve springs AND roller rockers! I'd sooner have the rockers for now though!

 

What makes u think u need higher poundage than you have C?

 

Valve bounce?

 

i tried to email dave @ puma racing a few weeks ago im getting rejected emails also

 

 

the only thing i can think of then is send him a letter with your email staiting that you want some of is valve springs but can't get in touch with him by email as his address is on his site to

 

Good question...................................

 

So at wot Rpm are the double springs suffering valve bounce??

as i'm going over to double springs ASAP, but no point if gonna have same problem.

i'm only running a Kent 36 kit, but it wont rev past 6300rpm in top

 

Also do, double valves springs course more cam wear????

 

In my experience, with Kent and Puma valve springs, you are still going to eat cams at continuous high revs. I did about 4-7 laps a day of the Nordschleife, 2 times a week, after 1/2 a season power dropped, due to wear on the exhaust lobe of cyl. 1.

The only guy I know over here, who does not suffer from cam wear, runs Titan roller rockers, and solid roller tappets - revving to 9,000 - for over 8 years now on the same cam!! The car is purely for the track - an RS1600i.

My old CVH revved to about 6500 before power dropped off, on anti pumps. TBH it was about the same with standard tappets.

 

Have you tried solid lifters and cam set up??

 

Nope - I have an evo now, so don't need to use the revs.



I don't think solid tappets and cam is going to solve the problem on its own...

 

The solid profile cams are chilled and much harder than the hydraulic profiles?

 

I tried to get some double valve springs off that guy before but it was so much hassle emails etc then he said he wants the end caps so he can machine them etc and it just seemed he didnt want any bussness off me so went else where and just launched some kent ones in....as i found piper ones bounce!

 

piper had a bad batch made there wat i had on mine first time and they bounced at 6.3k

 

Stuart, How do you know it was the springs to blame, and not the followers pumping up??

 

What guy was that??

Did you fit single springs or double in the end???