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Supercharger + Scrick 268 Cams


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I'll start off by sighing, because I thought I wouldnt want to strap a charger onto the VR.... Well, lukily, I've had a chance of heart..

However, I recently purchased a set of Schrick 268 degree Cams, I've seen that these can be ran with a supercharger, however it's not ideal and alot of remapping, ECU tweaking is required.

Can anyone shead any more information on this? Ideally, I dont want to be shelling out another 500 + on a set of cams suited for a charger if i can help it. (unless anyone would like to take these cams off my hands for a resonable offer).

Pete

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though the 248s were the best thing for a s/c vr.when the shrick gives up the cams start cooking,although the charger starts to boost at 2k all way up to redline in unison with previously mentioned mods.see vince for a deal on part ex of your 268s?

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  • 1 month later...

Hi Pete, I have had 268's with my charged vr, they have been removed this year, but i have kept the vsr and n2o. I have gone back to standerd cams as every 1 suggested they werent right for the charged lump. am booked in at stealth friday, so will let u know.

1141857292_882_FT99695_vr6ocengine_.jpg

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248's are the way to go for forced induction afaik, the higher profile 268's compliment the higher torque peak on a n/a car but with the vgi you want it coming in lower down, as like you say pete, it becomes a complete nightmare to map as you have different engine components all wanting to produce power at different rpm's. a bit of a nightmare for even vince to get spot on!

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The standard cams and fuel pump are the limiting factors at the top end when supercharging.

I put a brand new VAG 4 bar pump in mine (and I have a Walbro on standby if it's not enough) and the power drops off at 6100rpm, where it makes 290hp. Vince said that's because of the cams. 6100rpm equates to roughly 7psi as the V9 is geared to make 8psi at 7000rpm (with the supplied pulley), but tbh, I rarely ever go over 6K anyway, so that's fine with me. 248 SCs would enable me to spin it round to 7K and get the extra psi (and possibly pass the 300hp barrier) but 10 or 15hp is neither here nor there when I've got a relaxed 290 at modest revs. Vince sets the limiter to 6800 on his maps anyway. I did ask Vince about putting the 248s in mine and he said it's not worth the money for what they give in return.

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