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Thread: Remap with standard pre cat.?

  
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    rhys57's Avatar
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    Remap with standard pre cat.?

    As im currently in the process of swapping over bits from my Astra gsi to my Zafira gsi, My zafira is still on its standard pre cat it will be a few weeks untill i put my milltex pre cat on the car...

    So i was going to put Phase 1 map on the Zafira with my ipf before i change the pre cat and run it for a few weeks, Will it be ok ive heard it couyld be a bit much for a standard precat?????
    Vxr turbo with 360 bearing and twin oils seals & Evoms dv. Cdti airbox 63mm tophat.Milltex cat back and pre cat.. Regal 245 leh phase 1 ipf remap.Whiteline rarb.

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    It would be ok for stage one. I wouldnt go any higher though untill you get the decat.

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    Cheers mate.
    Vxr turbo with 360 bearing and twin oils seals & Evoms dv. Cdti airbox 63mm tophat.Milltex cat back and pre cat.. Regal 245 leh phase 1 ipf remap.Whiteline rarb.

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    I had a stage one and still had the original pre cat on it, power was 240.4bhp, 303 lbft torque, so you will be OK.

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    Thanks Andy was that on a rolling rd then?, Is your Vxr alot quicker than your old Zaf then mate?
    Vxr turbo with 360 bearing and twin oils seals & Evoms dv. Cdti airbox 63mm tophat.Milltex cat back and pre cat.. Regal 245 leh phase 1 ipf remap.Whiteline rarb.

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    mine was mapped with std pre-cat for 3 months , it now has pre-cat de-cat

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    Quote Originally Posted by rhys57 View Post
    Thanks Andy was that on a rolling rd then?, Is your Vxr alot quicker than your old Zaf then mate?
    Yes, on Regal's RR. The VXR feels very slighly slower than the GSi when it had the map on it, probably because it's a bit heavier, and the VXR's ride is a little more refined (it also has IDS+ suspension, not 100% sure if it makes much difference). The VXR has not been mapped, so is standard right now. The GSi also had 303 lbft of torque, the VXR is around 236 lbft, which would also account for it.

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    had mine done with out precat de-cat and got 231bhp & 273 lbft

    with pre-cat de-cat fitted on it got 235bhp & 290 lbft both results were on regals rr

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    I wouldn't bother mate tbh, its going to retain alot of heat in the blower for the sake of a couple of weeks i would wait personally.

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    i ran eds phase 3 map overboost to 1.5bar with standard pre-cat and main cat for 3 years with no probs! as far as i know the new owner (member on here) is still running the same setup with no probs.
    astra sri 2.0 turbo xp sports hatch

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