Landcruiser Colorado 90 series 3" turboback Exhaust .

Shayne Oct 3, 2013

  1. Shayne

    Shayne Well-Known Member Guru

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    Another work of art from Charlie at Prospeed exhausts in Cardiff .

    zorst001_zps8816decb.jpg
    zorst002_zpsf95b3d75.jpg
    zorst003_zps2a0cd015.jpg
    zorst004_zps04b3a1bb.jpg
    zorst005_zpsf4a360af.jpg
     
  2. chadr

    chadr Well-Known Member I am in england

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    Very nice, really like the side exit behind the mudflap. :icon-cool:
     
  3. stumog

    stumog Well-Known Member I am in england

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    nice good work.
    stu
     
  4. AndycruiserguyLomas

    AndycruiserguyLomas Well-Known Member I am in england

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    Looks good Shane, is there any improvement?, sound, .gas flow etc.

    Andy
     
  5. silvercruiser

    silvercruiser Well-Known Member

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    Nice. and just think he will be eating some of lincomb mud for tea.
     
  6. mrdelmonti

    mrdelmonti Well-Known Member Supporter Promoted Company I am in uk

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    Tidy install, has it got 3" dump pipe now then?
     
  7. clivehorridge

    clivehorridge Well-Known Member Supporter Guru I am in romania

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    Nice one Shayne, you won't regret having that made up. :clap:

    Looks a tidy job and I'll bet it sounds just grrrrrrrreat! Do you know the wall thickness of the steel?
     
  8. Shayne

    Shayne Well-Known Member Guru

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    Looks to me the dump pipe is still in place and if you look at the 4th pic the new pipework tapers up to 3" off it , though i could be wrong we have had torrential rain since i collected the truck so my first look underneath was 5 minutes to take the pics .

    How to describe the improvement ?

    Forgive me but the only word i can think of to describe the sound is "Subaru" , sorry but i can think of nothing else that i might compare to . I was astonished by how civilized the exhaust note is while cruising on the open road , but a touch of throttle produces a very deep growl .

    Performance is equally hard to explain .

    The turbo is no longer an occasional booster for the engine , the power is there all of the time at any time , regardless of speed or revs wiggle your toe on the accelerator and the truck responds . Again i am astonished how civilized the obvious power gain presents itself , acceleration was always good on my truck but it was blatantly obvious when the turbo cut in . Now power delivery is smooth from one gear to the next . Adding to this engine braking has mellowed a lot which again smooths everything out nicely .

    All in all i cannot praise Charlie at Prospeed enough , i genuinely felt he was personally pleased with his own success while at the same time being unnecessarily concerned that i wouldn't be as pleased as him with the results .

    If your reading this Charlie and you still have any doubts please be assured i would recommend Prospeed to anyone , the results are astonishing and worth every penny :thumbup::icon-biggrin::thumbup::thumbup:
     
  9. Beau

    Beau Well-Known Member I am in guyana

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    Looks good shayne, although I have heard the most restrictive parts of these trucks exhaust system is the down pipe, so surely it's worth the investment on a custom one of those? For maximum gains I would have also poked out the exhaust in front of the rear tyre so that it doesn't go over the axle (restricting?), just my thoughts anyway...

    Looks good, may I ask how much it cost you? I wish I had the tools and equipment to make these pipes, I can weld! Would make all you guys one :dance:
     
  10. Gary820

    Gary820 Well-Known Member I am in great_britain

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    Nice system.

    Def on my to do list for a cat back system, don't want noise though!
     
  11. Shayne

    Shayne Well-Known Member Guru

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    From what i can gather Beau the dump pipe cannot be removed while the gearbox is in , so if i ever have the gearbox out for other reasons that will be addressed at the same time . Regardless of the dump pipe the improvement is obvious . I have to wonder if a 3" dump will actually improve anything though , the turbo itself is not 3" and the dump pipe might be viewed as a short extension of the turbo , but i guess we will never know until somebody actually swaps it .

    To exit in front of the rear wheel i would have to either remove the sidesteps or go under them which for me is not an option , under it loses ground clearance when off-road , and i don't like the look of the truck with sidesteps removed . I will eventually get sliders but i intend to keep them looking as close as possible to the original step .

    Gary there is no "noise" , it's hard to explain , my neighbours won't be complaining , if i drive around town nobody actually turns and looks to see whats coming because of the sound , what i do see is curious looks from guys who i have to assume recognize (or at least think they do) the sound of a tuned engine .

    Be warned though my mpg is definitely going to suffer until the new toy syndrome wears off a bit because my driving is now atrocious , i just can't help slowing down so i can give it a boot full of throttle so i can hear that muted roar but even when i do that the occasional looks that come my way are of idle curiosity rather than frowning annoyance .

    I fitted a K&N air filter yesterday and while the jury is still out on whether or not it improved performance in any way (waiting for Helen's non bias review) I definitely think it compliments the exhaust by making its very deep tone perhaps slightly more obvious .

    The final parts for my intercooler have just arrived :banana-wrench:

    Zorst was £480 by the way after vat , dropped truck off at 10am and was asked to collect at 4.30pm .
     
    Last edited: Oct 5, 2013
  12. Gary820

    Gary820 Well-Known Member I am in great_britain

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    Thats a good price imo.

    When I say don't want noise I mean no more then stock noise, I'd fit a stock exhaust but want to tweak the routing a bit.
     
  13. Chas

    Chas Well-Known Member I am in england

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    When Charlie did a 3" on my 80 I asked for it to be no noisier than standard and what I got was perfect, no noisier but with a deeper tone, every time I go through a tunnel I have to lower the window just to listen to that throaty rumble which seems to have got better with a coating of coke on the inside. :thumbup:
     
  14. Shayne

    Shayne Well-Known Member Guru

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    Charlie obviously doesn't remember you Chaz , i mentioned your name and he said "he's mad him" i said no we must be talking about different people :whistle:
     
  15. Chas

    Chas Well-Known Member I am in england

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    He was probably remembering all the dents and scrapes. :oops:
     
  16. Beau

    Beau Well-Known Member I am in guyana

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    I think you need to see the standard Dump pipe to understand how restrictive it actually is and very small, they say on a turbo car you can never have a "big enough" exhaust....and then theres always the argument over back pressure and stuff....

    I think a increase at the fuel pump would now show good gains as the hot gasses can exit faster
     
  17. Shayne

    Shayne Well-Known Member Guru

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    I would certainly like to have changed the dump pipe as well Beau , what i meant was i find it hard to believe there can be much improvement at all above and beyond what Charlie at Prospeed has achieved already with the exhaust . The fuel will be tweaked .

    Anyway the jury is back with the verdict about K&N air filters . Helen drove the truck after the new exhaust was fitted and was very impressed . Tonight she drove it again for the first time since without knowing the filter might change anything . I have just had a text asking what i have done ! , she says (and its very unlike Helen to admit such a thing) she found it frightening to drive coz it feels like she won't be able to stop in time :lol: 30 odd quid on ebay - get one :icon-wink:
     
  18. clivehorridge

    clivehorridge Well-Known Member Supporter Guru I am in romania

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    My missus is always complaining, "why do we have to have the window down in the tunnels?" I just can't resist!
     
  19. Shayne

    Shayne Well-Known Member Guru

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    :lol::thumbup:

    I wish i could explain the sound its not loud its just different , think i will get a youngster to help me upload a vid .
     
  20. fridayman

    fridayman Well-Known Member

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    The exhaust looks good. "Turbo back" includes the dump pipe though. It is apparently possible to get the dump pipe off without removing the gearbox, but I couldn't do it in 3 attempts - I think the exhaust place magicked mine off when I had my exhaust fitted.
     
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