big BHP 8v

Discussion in '8-valve' started by deepdishtj, Nov 6, 2008.

  1. drunkenalan Paid Member Paid Member

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    Last edited: Nov 10, 2008
  2. drunkenalan Paid Member Paid Member

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    TOP SECRET

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    Its not run yet so may not be a powerful as hoped.
     
    Last edited: Nov 11, 2008
  3. fthaimike Forum Addict

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    Think this was it...
    2.1 TSR engine with long stroke balanced crank, pack 'c' head = gas flowed ported & polished with 40.5mm inlet valves 35mm ex valves, TSR203 cam - duration = 282.....lift = 11.6.....(Fast Road/Club Sport) & piper vernier pulley, bronz phosphor valve guides,hi-flow 1.6 metering head & drilled box & k&n filter, k-star series II system, 19 row oil cooler, power rohr pipe, gas flowed inlet manifold modified to match up to audi throttle body, ansa 4-1 exhaust manifold mated to 2.5" custom made stainless steel exhaust, black diamond plug leads with bosch super 4's wd5 plugs, custom 4+E box with a Quaife ATB/LSD, Helix Organic Motorsport clutch.

    Edit: also has a Hotgolf lightened flywheel (balanced to friction plate) to be fitted.
     
    Last edited: Nov 11, 2008
  4. nealey Forum Junkie

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    I spoke to someone off here at e38 who had done it but i had drunk a few and couldnt remember his name afterwards
     
  5. Jon Olds Forum Junkie

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    No longer for sale
     
  6. drunkenalan Paid Member Paid Member

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    seen as mike has kicked it off.

    2042 engine = Hotgolf crank, flywheel, pistons, intermeadiate shaft, and bottom pulley
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    Shed big valve head with schrick 288 cam and vernier, port matched inlet manifold
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    Cossie injectors, wrapped 4 branch, oil cooler, baffled sump
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    Megasquirt
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    some other bits and bobs i have forgotten

    I also have some bike ITB's & custom manifold that ill use eventually when im more confident with MS
     
  7. mk2vivs Forum Member

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    drunkenalan is your bottom end a tall block out of curiosity
     
  8. mr hillclimber Club GTI Supporter and Sponsor

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    Forgiven...:lol:
     
  9. Mike_H Forum Addict

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    I believe it's an AGG, from previous posts.
     
  10. Mike_H Forum Addict

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    chrismc's 8v had a porsche FPR on it, so was running at 3.5 bar (I think).

    'almost standard' could be based on standard pistons with a mm shaved off the block, and the same off the head - which would give you about 12:1 CR. Not very standard at all, in fact.
     
  11. mr hillclimber Club GTI Supporter and Sponsor

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    The goal you have to set yourself is if your prepaired to fit steel rods & forged pistons, and decent ones, not the cack thats filtering onto the market.... revving the t%ts of it is the 8-9k ballpark.

    Standard internals (pistons & rods) are ok to 8k for "very" short bursts (hillclimb/sprint use), low to mid 7's for more sustained periods (long sprints, 1/4 mile, track days with caution) if the c.r is sensible (10.8-11:1). Slick 50 spec engines break up the ring lands when cast pistons (KS) are used at 7k+/11.5:1 cr and long periods of sustained revs.

    Most road spec engines dont make peak power after low-mid 6's, so dont need to be revved over 6,7-6,8 which standard parts are more than fine for.
     
    Last edited: Nov 12, 2008
  12. mr hillclimber Club GTI Supporter and Sponsor

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    The thing is, will they make a lot more power that the rest of most road spec engines can deliver on standard injection, K-jet or Digi ?... I personally doubt it.

    Most good road engines make 145-155hp, some of the better ones a little more, which K-jet or Digi can cope with (correctly tweeked).. If you could find 8-10 through the rev range for 500 it could be worth considering, though 5hp near peak is no doubt more like it. Big top end bhp is'nt needed for a swift road engine package, unles your looking for the open induction bark/something different.. plus installation/clearance issues.
     
  13. mr hillclimber Club GTI Supporter and Sponsor

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    Dont worry about the numbers, just get it running!..:lol: ... it'll be good.
     
  14. mr hillclimber Club GTI Supporter and Sponsor

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    Are you replacing it with the 8v you were building with the 48's/old competition head ?
     
  15. mr hillclimber Club GTI Supporter and Sponsor

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    Comp spec...

    1800 8v hillclimb/sprint/track use, 48 SP Webers with 39mm chokes, 41.91 / 35.56mm head with 7mm stems, 318 cam, big diameter steel cam buckets, Lot's of c.r, forged (Cosworth) pistons, steel (early Farndon) rods, std crank, Ashley 4-1 (not ideal) manifold, Supersprint 2.5" system... 164hp @ wheels (193 flywheel) @ 7,500-7,900rpm, revs' to 9k trouble free.

    1800 8v hillclimb/sprint customer engine, 45 Webers with 38mm chokes, 41 / 35 valve head, 304 Schrick cam, steel cam buckets, 12:1 c.r, forged (custom J.E's), Carrillo rods, std crank, Ashley 4-1, Supersprint road system... 148 @ wheels (174 flywheel) @ 7,200rpm. (more power for next season with better cam/head & more c.r)

    Road spec

    2ltr road engine, std (MK2) k-jet, modded air box/K&N, ported std (40/33) valve head, 284 cam, std bottom end, 11.25:1 c.r, ported std (twin outlet) ex manifold, modified (it now flows!) Magnex system. No power figures as yet but MK3 GSI Astra's dont get a sniff, Fireblade rideing owner claims "more than fast enough for sane road use... in fact too fast for the fa%kin brakes !"
     
  16. drunkenalan Paid Member Paid Member

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    Correct!
     
  17. mk2vivs Forum Member

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    AGG isnt a tall block only the 2E?
     
  18. drunkenalan Paid Member Paid Member

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    Standard components tho! almost
     
    Last edited: Nov 14, 2008
  19. drunkenalan Paid Member Paid Member

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    no try again, 2E, AGG, ABK & ABA all tall blocks
     
  20. drunkenalan Paid Member Paid Member

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    I would quite like that roar
     

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