solid lifters and valve springs

[s2 rich]

Hi i was wandering what parts to upgrade in my engine. What solid lifters do people buy and where from ? Also the same for valve springs . The car will be running 500 bhp ish so any tips welcome thanks

[Jamo]

Why do you want solid lifters? long term they are a pain unless your car is for track or very occasional use as you have to keep shimming them.

Anyhow speak to MRC, Doug can advise you.

[s2 rich]

Beacause i have 8000rpm dahlback racing cams and i was told i would need solid lifters ????

[repo]

Why on earth do You want such cams for such power?

[s2 rich]

What do you mean ??

[Ross]

Guessing he's making the point that you can make such power without using such cams, stock or RS2 are often used for big power.

One the 8,000rpm - you could get pretty close without going to solid lifters, but you'll be pushing on the door of valve float. I had a head built with 034 Motosport's high-rate valve springs and titanium retainers, with light-weight lifters and planned on pushing it to about 7,800 on the rev limiter.

Doug @ MRC - as Jamo said - is your man. He used soilid lifters from the diesel motor i believe, rev limited to 8,500rpm. Advice I was given is that they need to be checked regularly and expect to get them shimmed every couple of years on a daily driver.

[repo]

You can rev up to 8000 with hydro lifters, the heavy ones, original retainers and valves, if using stiff springs.

Nevertheless, a properly set 500hp I5 gives peak power at 6500ish rpm, so absolutely no need for 8000rpm.

Also, You can hit 500hp pretty easily with original AAN/ABY cams. Harder profiles usually cause midrange power loss and rough idle, so there is no gain.

Only case I would think of going to solid lifters is, when You are driving on track, and need to get the turbo to breathe up, instead of pushing low end torque.