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4.6 DOHC Mod motor with S480???

Discussion in 'Turbo Tech Questions' started by strkdblwncapri, Jan 1, 2014.

  1. strkdblwncapri

    Joined:
    Sep 1, 2006
    Ok really thinking about going to a mod motor in my 86 Capri, my question is how bad is spool up going to be with my current S480 turbo on a dohc mod motor? It has the 96mm turbine with the 1.32a/r housing....my plans are to buy a Mark VIII engine, cobra crank, cobra cams, and cobra intake, leave the b heads stock with upgraded springs and possibly valves (if needed), along with good h beam rods and forged pistons. Gonna do a diy turbo kit, probably a 2.25 crossover keeping it divided the whole way like my current setup on my windsor. Also it would be made to have high 9:1 low 10:1 compression. Looking for 800+rwhp on high boost for the track and low-mid 600s for street driving all on E85.
     
    strkdblwncapri, Jan 1, 2014
    #1

  2. jridenour31

    Joined:
    Sep 3, 2009
    I'd be running a LOT more than stock cams with that setup. A 2" crossover would help and at least 10:1. My question is why? I don't see the point of this one.
     
    jridenour31, Jan 2, 2014
    #2

  3. strkdblwncapri

    Joined:
    Sep 1, 2006
    Why swap? Just was thinking about it. I have always had pushrod engines except for the 98 cobra I had owned...wanted to do something different and don't realy have the dough right now for a new dart based engine and figured for what I could sell all my current parts for I could do a 4v swap plus I have always wanted to do it. I'm sure I could easily sell the s480 if need be......
     
    strkdblwncapri, Jan 2, 2014
    #3

  4. ashford

    Joined:
    Nov 24, 2008
    ashford, Jan 2, 2014
    #4

  5. PrecisionTurboMustang

    Joined:
    Jan 27, 2006
    Really need the t4 turbine and smaller exhaust wheel imo
     
    PrecisionTurboMustang, Jan 2, 2014
    #5

  6. jridenour31

    Joined:
    Sep 3, 2009
    For a street car, I agree 100%. I'd probably go with a t4 s480 with the 87mm turbine at the most and even the 83mm turbine would meet your goals.
     
    jridenour31, Jan 2, 2014
    #6

  7. strkdblwncapri

    Joined:
    Sep 1, 2006
    Well if I can find a nice used sportsman a-351 block I am gonna stay pushrod. I just hate to start from scratch since I already have a nice rotating assembly. Sucks the dart blocks don't come in 3" mains....
     
    strkdblwncapri, Jan 2, 2014
    #7

  8. strkdblwncapri

    Joined:
    Sep 1, 2006
    either route I go my quest is for the 8s, which I have already come close to before the stock windsor block had issues.... I am just not sure how possible it will be with unported b heads and built mod motor? I want it to make 750-800whp through the auto.
     
    strkdblwncapri, Jan 5, 2014
    #8
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