STREETSWEEPER VS TSUNAMI cam
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STREETSWEEPER VS TSUNAMI cam Hi all. Anyone got any info or advice between the FTI Streetsweeper (236*-240*-111*-.631"-.610") and the TSP Tsunami (235/240, .629"/.615", 111 LSA).
I'm leaning more towards the Streetsweeper as from what i have seen on dyno printouts, the cam pulls hard all the way to 6500 and then flattens out to 7000. Car is running an A4 and will be running a 4k stall.
Any advice, good or bad, is appreciated.
Cheers
Lee
I'm leaning more towards the Streetsweeper as from what i have seen on dyno printouts, the cam pulls hard all the way to 6500 and then flattens out to 7000. Car is running an A4 and will be running a 4k stall.
Any advice, good or bad, is appreciated.
Cheers
Lee
Both are similar so it’s a toss up. A lot of great running cars ram either cam. I know the street sweeper probably has some good track numbers. IMO I would go with that. Buddy of mine has the tsunami and runs well, but doesn’t track it very often.
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Can you tell us a bit more about the intake, exhaust, throttle body and what you are doing with it? SUM-8709R1 is a phenomenal running cam that works without flycutting. If you have milled the heads .030 (worth it) you can back down to the SUM-8711R1 cam. This is based on your 4k converter...it doesn't sound like you are playing around but these cams will compliment that.
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Teching In
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Can you tell us a bit more about the intake, exhaust, throttle body and what you are doing with it? SUM-8709R1 is a phenomenal running cam that works without flycutting. If you have milled the heads .030 (worth it) you can back down to the SUM-8711R1 cam. This is based on your 4k converter...it doesn't sound like you are playing around but these cams will compliment that.
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Are you modifying the front of the intake to accommodate the 90? If you can start with a set of smaller chamber heads and then mill, that would be a plus. Compression will help everywhere top to bottom. We’d recommend sticking with trunnion kitted stock rockers as they are the lightest at the valve and will help extend rpm at the top. If you mill a 65cc head to 60 with a .030 mill, the Sum-8710r1 is about the biggest cam without flycutting. Lastly, the porting of the factory heads by TEA and a couple others is fantastic and we’d recommend using a 2.040 cut down Ls3 hollow stem intake valve to increase the revs. The intake is holding it back a bit at that point, but the engine will enjoy turning 7k plus with a good dual spring pack like the tfs-2500286p and then a 11/32 .120 wall Sum-14917400 or sum-14917425 pushrod will get you close depending on whether you mill the heads or not. There is a lot to unpack here but you’ll be happy with the performance per dollar.
Thread Starter
Teching In
Joined: Apr 2021
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Are you modifying the front of the intake to accommodate the 90? If you can start with a set of smaller chamber heads and then mill, that would be a plus. Compression will help everywhere top to bottom. We’d recommend sticking with trunnion kitted stock rockers as they are the lightest at the valve and will help extend rpm at the top. If you mill a 65cc head to 60 with a .030 mill, the Sum-8710r1 is about the biggest cam without flycutting. Lastly, the porting of the factory heads by TEA and a couple others is fantastic and we’d recommend using a 2.040 cut down Ls3 hollow stem intake valve to increase the revs. The intake is holding it back a bit at that point, but the engine will enjoy turning 7k plus with a good dual spring pack like the tfs-2500286p and then a 11/32 .120 wall Sum-14917400 or sum-14917425 pushrod will get you close depending on whether you mill the heads or not. There is a lot to unpack here but you’ll be happy with the performance per dollar.
Cheers
Lee
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@Shadow02SS when you made the 410, what other mods did you have done? I also assume that was at the wheels?
Hey, fellow Aussie. I cant help you with the cam question as I use small cams but in case you didnt know, there is usually a 10-15% variation with dyno results between the USA and AUS. So, if you end up with lower dyno readings, don't let it worry you. Best of luck with the mods.
Thread Starter
Teching In
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Hey, fellow Aussie. I cant help you with the cam question as I use small cams but in case you didnt know, there is usually a 10-15% variation with dyno results between the USA and AUS. So, if you end up with lower dyno readings, don't let it worry you. Best of luck with the mods.
Cheers
Lee
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From: Sydney, Australia
Thread Starter
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Cheers
Lee