Cant go higher then 175chp
08-28-2017, 08:08 PM
#1
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Cant go higher then 175chp
Hello, i race in a local time attack series with not very limited rules. Pretty much my only rules i have to stay within is 200tw tires (225 rival s 1.5) and then staying in 12:1 hp to lb. I had my car weighed with a full tank it was 2120 this tells me i can pretty much get 175 at the crank. The race sanction takes your wheel hp and adds 15% if your 2 wheel drive so thats about 150 to the wheels. The motor i have in the car is a automatic 1.6, i say auto motor because supposedly they have a smaller intake cam and lower compression. Im looking to focus on power this off season with that being said 1.8 swap/supercharger/turbo give me advice. I know with 1.8 i will still be pretty low on power. The supercharger would put me right their but im just not a fan of them. I would love to do a low boost turbo build but kinda scared of making too much power
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08-29-2017, 01:09 AM
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im the maroonish red na6 89 rb i think you talked to me two events ago askin if i was running ms and asked about my paint
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08-30-2017, 01:18 PM
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The NA route makes a lot of sense, but if youre feeling adventurous you could take advantage of the rules by building a turbo setup that makes lots of torque and stays under the max power. The trick would be to use a restrictor with a small turbo. Run "all of it" at low-mid RPM and let the restrictor choke it down at higher RPM. With a responsive turbo you could get something like this dyno.
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08-30-2017, 03:04 PM
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The NA route makes a lot of sense, but if youre feeling adventurous you could take advantage of the rules by building a turbo setup that makes lots of torque and stays under the max power. The trick would be to use a restrictor with a small turbo. Run "all of it" at low-mid RPM and let the restrictor choke it down at higher RPM. With a responsive turbo you could get something like this dyno.
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08-30-2017, 03:44 PM
#12
This tiny turbo, high rpm, boost bleeding theory sounds way overly complicated, over expensive, less reliable, and not very much fun to drive, all for very little gain. N/A VVT makes plenty of tq down low, not that you're driving at 3000rpms on a track anyway. I'm as big of a turbo fanboy as anyone, but at that power level it just makes no sense to me.
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08-30-2017, 04:55 PM
#13
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This tiny turbo, high rpm, boost bleeding theory sounds way overly complicated, over expensive, less reliable, and not very much fun to drive, all for very little gain. N/A VVT makes plenty of tq down low, not that you're driving at 3000rpms on a track anyway. I'm as big of a turbo fanboy as anyone, but at that power level it just makes no sense to me.
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08-31-2017, 09:35 AM
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Ha small world yea i run in rb at the ppir tad and i want to stay in rb for next year. Im leaning towards a turbo with real low boot because their is room to grow so when im ready for the class switch i already have it figured out.
im the maroonish red na6 89 rb i think you talked to me two events ago askin if i was running ms and asked about my paint
im the maroonish red na6 89 rb i think you talked to me two events ago askin if i was running ms and asked about my paint
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08-31-2017, 12:36 PM
#17
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I agree with everyone suggesting a VVT with bolt ons. A turbo for that little of a power boost is not worth the cost/weight of the entire system. Think about it, you'll need to add the weight of a turbo, all of its necessary lines, intercooler, and charge piping.
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08-31-2017, 02:06 PM
#19
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But im trying to win races not win a science fair, im on the lookout for a vvt motor now.
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