Recent content by Haulz A

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    Cam question for the group

    Cool beans- I don’t run a tensioner with my double roller timing chains- I just play with different size sprockets and timing chains until I get the right tension on both side of the timing chain- you have to buy extra part In- order to get that tension right
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    Cam question for the group

    Running 195-220 lbs springs seat pressure is a common thing with THS/TAI/TPB/TSM/TSO cars with Alluminum or steel heads. Alluminum heads just require steel or titanium spring locators to prevent cylinder spring pocket wear. Just need to use a high quality timing chain such as roll master double...
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    GS Nationals attendance been dropping

    Memories are for those who wish to hold on to the rich history but life is for those who create memories and enjoy what they have left to offer the ones that will carry on with the history that was created by many of the people that Chuck Leeper discuss in his thread. I'm planning on going to...
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    2022 THS Sponsors for BG

    The complete list of THS sponsor for the 2022 GS Nationals Boost Crew Motorsports (THS Title sponsor) $1000.00 SpoolFool Productions $300.00 and Raffle parts Lorenz Racing & Performance $200.00 Watts Performance & solutions $250.00 RJC Racing $100.00 for #1 qualifier Broughton Performance...
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    Precision Turbos New Turbo Listing for Buicks !!!!!!!

    Patrick, The chart looks good- Buick turbo's offer by precision condensed into a single data sheet.
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    WTD: 7675 Gen II or 7685 GenII Precision Turbo

    Hey my friend - I was just responding to the same thread as you- I just ran the Wallace calculator based on the info he provided about his car- I understand that you have plenty of knowledge with these Buick’s bc I’ve agreed on many of your threads and read many of your advice concerning peoples...
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    WTD: 7675 Gen II or 7685 GenII Precision Turbo

    Using the Wallace Racing - ET/MPH/HP calculator, based on an 8.72 ET and 156 MPH trap speed- his calculated vehicle weight is about 3575 t0 3600 lbs with the driver. The calculated Flywheel HP is about 1050 with the Gen 1 turbo. A Gen2 7675 turbo will not provide enough additional flywheel HP...
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    2022 THS Sponsors for BG

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    THS 2022 GS Nationals??

    There are no rule changes for the up coming GS nationals for the THS class. We will have our drivers meeting with the current RRA (David Day) which we will discuss current and future rule changes with all present racers. Here's a couple of topics we will be debating on; Turbo type &...
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    Turbine Backpressure

    Rubio I talked to one of your colleagues @ the sweet16 radial race last week- we discussed some strategy’s on over coming three bolt turbo BP issues and the restrictive 3X2 compressor cover that I have to run in THS legal class. If you all can design a better and less restrictive...
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    Turbine Backpressure

    Precision Turbo's gives us a limited amount of turbo choices when it comes to three bolt turbo's but they have the latest turbine/compressor wheel design available in a small frame three bolt turbo. Like I said earlier- with a Vband style exhaust system there many options available for...
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    Turbine Backpressure

    I don't know what size your injectors are but based on the info you provided- you should have enough injector to run up to around 35 lbs of boost with an injector duty cycle of approximately 90% which is the limit on those injectors. Once BP reach closer to 2:1- the gain in HP made reduces -...
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    Turbine Backpressure

    Personally I think your camshaft (212/212) duration is too small for that turbo- a larger duration camshaft (218-224 ) range with an aggressive ramp rate (such as Compcams XFI/QXI lobe profiles) would be more suitable for 70 mm turbo. I like the cylinder head valve spring seat pressure which is...
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    Turbine Backpressure

    Turbo1 dr- I can understand your concerns pertaining to BP but the ? I have: What type of turbine housing is on the turbo ( three bolt, V-band or 4 bolt housing). There a distinct difference as to the characteristic of each turbine housing. The three bolt turbine housing seems to be the most...
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    TSM at Salem?

    Kip what are the dates for this race.
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