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Beat cam kit to go with jms rs2??
- Thread starter j_clio172
- Start date
Adey.
ClioSport Club Member
197 cams seem to work well with some advance I think I'm going to try retimed stock cams on mine
Did you buy the cams from -J-?
Adey.
ClioSport Club Member
nope, i forgot to remind him to get me some pics at the weekend
NorthloopCup
ClioSport Moderator
Just run it on the oe cams retimed by Mike Woodford. That's all I was going to do when I had one. He's getting good gains out of the rs2 now.
Tim.
ClioSport Club Member
Is that to any detriment of torque losses lower down the rev range though? Or is there no downside to 197 cams with an RS2?
172 Ph1
I have 438's in mine atm , soon to be coupled with the Rs2 just sorting a minor issue needed to fit it to my Ph1 .
I spoke with mike also and he mentioned tweaks to my cam timing for these to produce good power gains .
He mentioned GroupN timing maybe , but not 100% sure it's that set-up.
I spoke with mike also and he mentioned tweaks to my cam timing for these to produce good power gains .
He mentioned GroupN timing maybe , but not 100% sure it's that set-up.
I have 438s with my Rs2 
NorthloopCup
ClioSport Moderator
How often do you rev to 7850 though? Keep in mind that if it makes more torque lower down on retimed oe cams you won't need to rev the b****cks off it to get it to make progress.
You say that, but mike couldn't get past me along the back straight if bedford with his 438'd and ITB'd ph1! We were literally side by side all the way down.
im going to get an RS2 now jason. mikes going to time my 438's to 421 spec to run with the RS2
NorthloopCup
ClioSport Moderator
Horses for courses mate. Plus there's a lot of variables. Weight being one of the biggest. My cup is standard 172 power but it out runs a lot of stuff on track because it weighs as much as an empty packet of fags.
I know chip commented on how well your car responded as well. Let's be honest there's some good and bad f4r's out there.
172 Ph1
Maybe those were the specs he was talking about. @Kyle.
@NorthloopCup - I like the sound of your empty chrisp packet. I need to empty mine . [emoji12]
NorthloopCup
ClioSport Moderator
And it's set to get even lighter with a touch more hp. 50hp minimum to be more precise. Lol
Yeh totally agreed, they were a perfect match before. His ran 200.4 on the same setup as mine, and mine was 200.0. His was a ph1, mine was ph2 non cup so weight was in his favour.
NorthloopCup
ClioSport Moderator
What was the torque figures like between the 2 dan?
Mikes was 149lb-FT iirc, mine did 143, but was never a torquey engine.
NorthloopCup
ClioSport Moderator
Atw figures yeah?
No, fly. Mine deffo got better with the rs2/197 setup though, so was probably around the 140 mark before
NorthloopCup
ClioSport Moderator
Ouch!!!! I was expecting a significantly higher figure than that for a atf figure!
Yeah hes got great results with tweaking the timing on the 438's
When are you looking to get yours Jas?
Mikes going to speak to james for me
172 Ph1
Yeh, but it held that from 2500-7400. Infact it must've been making 134lb-ft at the limiter!
Tim.
ClioSport Club Member
Are these @Cub.'s old cams? How are they working out with the RS2? I know plenty of people have tried the RS2 with 197 cams, but not many with 438s, from what I can see. Do you have any results, either RR graphs or subjective views on how it drives compared to before?
I'd be interested to know whether there are benefits to be seen with this setup over standard cams with Mike's timing.
Cub.
ClioSport Moderator
They are my old cams indeed
NorthloopCup
ClioSport Moderator
It would still make me cry with those torque figures and itbs! Lol
Mine was on an rs2, not ITB's. Mikes made 160 odd on ITB's and couldn't get past me
NorthloopCup
ClioSport Moderator
Ok so now I'm confused! Lol! Thought you'd posted earlier that mikes made 149lb/ft on 438's and itbs?
I imagine the reason he couldn't get past was due to the torque delivery of the rs2. If they had more plenum volume and more space around the bell mouths they'd make a very interesting proposition to itbs imo.
Ah sorry, I thought you meant what torque he made on the rs2.
Adey.
ClioSport Club Member
so do we think plenum volume is something that can be improved upon on the RS2? as in give some more gains?
NorthloopCup
ClioSport Moderator
Ah makes sense now then!
NorthloopCup
ClioSport Moderator
In my opinion yes. Having owned one and taken it apart you can see where the compromises are in the design. Don't get me wrong I'm not slating the rs2 as I genuinely think it does good things for the f4r as its optimised for the standard engine and the engine bay of the Clio, but I think an increase in volume and a different plenum would work wonders. I looked into doing this myself, but decided the 1k i paid for the rs2 + another 1k for a reverie carbon plenum and baseplate was a bit excessive! Lol! You could do it out of aluminium, but I openly admit I'm a tart and it needs to be easy on the eye! :smile:
Adey.
ClioSport Club Member
i was thinking an aluminium spacer could be fitted between the backplate and plenum, 15mm thick or something?
NorthloopCup
ClioSport Moderator
The plenum cover sides are physically to close to the bell mouths mate, so a spacer wouldn't improve things in that respect.
Adey.
ClioSport Club Member
Ahh ok I haven't opened mine up yet
NorthloopCup
ClioSport Moderator
Have a look at some of the plenums on reveries website. That'll give you an idea of the sizes and volumes.
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