182cup & 172 racecar
I don't disagree, Phil. It's just finding the initial funds to by one, that's where the problem lies.
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Pure Motorsport Race Engine
- Thread starter Martin.
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182cup & 172 racecar
Something I've always tried to avoid, credit card racing. It can be a downward spiral.
Russ Rallye
ClioSport Club Member
48mm jenveys on one of Sandys manifolds by the look of it.
Good to see you on here sandy and helping to develop engines and bits for the clios like you have done for years with the peugeots and other stuff.
Russ
I FULLY agree. It's why if I ever got into a race series it would be something with certain rules on the engine. A blue printed engine that you can swap to bodies - no boost is manageable. If you're not careful you end up in a series where the guy with the biggest pocket wins rather than the guy with the most talent. That doesn't interest me at all, most of the fun of the French series at the moment from a spectator point of view is how close your cars all are.
NorthloopCup
ClioSport Moderator
That happens in EVERY form of Motorsport. End of.
Even in tightly regulated series people with the most money have a big advantage. Blue printing engines costs thousands.
182cup & 172 racecar
If you're not careful you end up in a series where the guy with the biggest pocket wins rather than the guy with the most talent.
As Mark say's, It will always happen.
Seems these guys have set the bar.........
http://m.youtube.com/watch?v=I2B5Lkp0Au8&desktop_uri=/watch?v=I2B5Lkp0Au8
Im fitting my f7r engine in my mk 2 clio rally car and fancy a manifold like that or a 182 one, is the position / angle of the head vs the f4r the same? So I just need a f7 r flange welded on? So it fits with out fouling.
http://m.youtube.com/watch?v=I2B5Lkp0Au8&desktop_uri=/watch?v=I2B5Lkp0Au8
Im fitting my f7r engine in my mk 2 clio rally car and fancy a manifold like that or a 182 one, is the position / angle of the head vs the f4r the same? So I just need a f7 r flange welded on? So it fits with out fouling.
NorthloopCup
ClioSport Moderator
Everything about that engine is bespoke Fred. Absolutely 100%. Only original Renault stuff is the block, cylinder head and cam cover. H knows his stuff too.
NorthloopCup
ClioSport Moderator
Lol! That I can't answer I'm afraid mate, and yes I found that bit strange too when I saw it.
NorthloopCup
ClioSport Moderator
Flol!
Port spacing is the same, port height if not the same is certainly mega close, I really cant see it being a big problem to do, especially in a mk2 anyway.
Exhaust pulleys are more reliable than verniers which can rattle loose, so if you just make up a tool to time appropriately on the other end of the cams then once the dev work is done they make more sense than verniers as you wont be changing the timing again, so that makes perfect sense to me.
I would imagine that the tensioner is 180 degrees out so it applies a different amount of tension to allow for a different height between the cam and crank pulley centre lines.
You would have a heart attack if you saw Mike from MWM's brothers turbo car with a much thicker gasket, that requires an even more drastic trick to get the correct tension on the new pulley distance
There is more than one correct way to build and spec an engine, renault arent always the b-all and end-all.
Thanks Chip the F4R head (exhaust face) seems to be parallel to the centerline of the engine where as the F7R seem to be at an angle, obviously the Exhaust flange will need welding at the same angle which is the tricky bit.....!!! need to try and find this out i guess.
Advikaz
ClioSport Club Member
Still made a difference in FPA as well mate. Fresh tyres, more regular rebuilds, fresh brakes etc, still worth time.
Oh I was under the impression all cars got maintained to the same standard, thanks for the correction!
My measuring the height of the tail end of the manifold relative to the bottom of the block or some other good reference point, hopefully that will be relatively straight forward to do.
Clearance on the back of the cam cover might also be an issue though, with the way the branches sweep forward, as from memory I think the F7R head might be taller overall?
Exhaust pulleys are more reliable than verniers which can rattle loose, so if you just make up a tool to time appropriately on the other end of the cams then once the dev work is done they make more sense than verniers as you wont be changing the timing again, so that makes perfect sense to me.
I would imagine that the tensioner is 180 degrees out so it applies a different amount of tension to allow for a different height between the cam and crank pulley centre lines.
You would have a heart attack if you saw Mike from MWM's brothers turbo car with a much thicker gasket, that requires an even more drastic trick to get the correct tension on the new pulley distance
There is more than one correct way to build and spec an engine, renault arent always the b-all and end-all.
Not with you on that, the rubber damp'd pullies are no good IMO for high rpm (over 8500) which I think an f4r needs to be up above in order to make 270
182cup & 172 racecar
Don't know if I could make myself rev to that.
But it doesnt rev over 8500?
Must confess Ive never personally seen an exhaust pulley fail (didnt even know they were rubber damped though TBH, you learn something new everyday I guess, will have a look at mine when Im home as surprised ive not noticed that when fitting them) but I have seen failed verniers.
Solid billet would be best bet then if they really are damped.
I know what you mean but its weird how that seems so high for an F4R, I thought nothing of revving my XE engines to that, and way past it with hondas!
182cup & 172 racecar
Saying that, I did have an Escort that went to 9k, it's what you get used to I suppose. After the Escort I had a TR7 V8, I blew it up, v8's don't like to rev to that (well this one didn't) lol.
I think its the long stroke and poor rod ratio on the F4R that just make it feel unhappy up there.
Thats my point! To make 270 it needs to!
Not if it can make 167lbft of torque at 8500rpm it doesnt, and TBH that doesnt sound unrealistic to me.
No-one mentioned 270bhp Fred until you did. It makes 257bhp and hasn't gone above 8k yet.
Different engine Phil, Fred is chatting about the Ashford one.
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