Track engine possibilities

[Tomo3292]

Gents debating what route to go down.

I want to keep the engine standard ish but thinking of the following options. Just need some advice as to if its worth it or not.

Currently I have replaced
Main bearings
Big end bearings
Full gasket set
Sump
Water pump
Heads been ported

But now thinking if its worth installing 197 cams and RS ported inlets to match.

I also need to know can I fit RS inlets to 172 engine?

TIA

 

[STEVE.M]

Gents debating what route to go down.

I want to keep the engine standard ish but thinking of the following options. Just need some advice as to if its worth it or not.

Currently I have replaced
Main bearings
Big end bearings
Full gasket set
Sump
Water pump
Heads been ported

But now thinking if its worth installing 197 cams and RS ported inlets to match.

I also need to know can I fit RS inlets to 172 engine?

TIA

I would have put ARP end bolts & supertech valves at the top of my shopping list.

 

[Tomo3292]

Done ARP blots mate forgot to mention that. But with the valves you aren't gonna get much from that surely? Maybe a bit of reliability which I'll look into further. Was thinking of some cams??

 

[STEVE.M]

Done ARP blots mate forgot to mention that. But with the valves you aren't gonna get much from that surely? Maybe a bit of reliability which I'll look into further. Was thinking of some cams??

The OE valves are friction welded and the head has been known to part company with the stem when used at high RPM.

 

[Tomo3292]

H

The OE valves are friction welded and the head has been known to part company with the stem when used at high RPM.

thanks alot for the info mate. I heard their 2 peice valves. But that has made me think a bit!

 

[Greeny.]

Re valves this is why I rarely go above 6.8k as that’s where peek power is made with my 421’s

 

[STEVE.M]

H
thanks alot for the info mate. I heard their 2 peice valves. But that has made me think a bit!

Dropping a valve is never pretty.

Did you not replace the piston rings?

 

[R3k1355]

If you're having the engine apart, replace the valves as a priority.

It'd be sods law that first time out the thing drops a valve and destroys all your hard work.

 

[Tomo3292]

Sorry pal left a

Dropping a valve is never pretty.

Did you not replace the piston rings?

Sorry pal left a fair bit out, yeah I replaced the piston rings

 

[JackJack]

Definitely do the valves

 

[Aydon182]

Valves arent that big of a deal, out of all the clios that get regularly abused on track is still a minute percent that fail by snapping a valve, and even then most of the time its a mis-shift and mechanical over rev, the super tech valves can fail under the same circumstances too, they arent indestructable, and at the price they are you could have a lowish mile engine as a replacement.

If you are keeping the stock rev limiter which there would be no sense not to unless you were going itbs and cams then i wouldnt bother going supertech valves