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[FINALIZED] TVIS ported and polished

 
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rev2rich
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Joined: 17 Dec 2009
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1991 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Thu Dec 29, 2016 11:30 am    Post subject: TVIS ported and polished Reply with quote Reply with quote including images

I got this a very long time ago when I was unsure on what manifold I want to go with. I cant remember what company made it but it is well done and is a nice piece of kit! It is a Genuine Toyota part machined ported and polished

Asking 40 Delivered
Can supply more photos on request
Thanks for looking Rich [thumleft]



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rev2rich
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Joined: 17 Dec 2009
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1991 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Sun Jan 08, 2017 10:55 am    Post subject: Reply with quote Reply with quote including images

Still here [Whistle]
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UrbanFreestyle




Joined: 30 Dec 2016
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Location: Exeter, Devon
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PostPosted: Wed Jan 11, 2017 3:02 pm    Post subject: Reply with quote Reply with quote including images

excuse my ignorance but what does this do / what benefit could it bring?
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rev2rich
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1991 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Wed Jan 11, 2017 4:53 pm    Post subject: Reply with quote Reply with quote including images

Quote:
The gen2 intake manifold and TVIS were designed to provide good low end torque and high top end flow using a dual runner per port setup with a set of butterfly valves kept closed at low RPMs to increase air velocity into the port and open at higher RPMs to increase flow capacity. The proper TVIS opening point lowers as VE improves (better exhaust, turbo, valves or cams). The stock ECU keeps a fixed opening point around 4200RPMs which is too high for modified gen2 setups. Consequently, there will be a torque dip from around 3800 RPMs to 4200 RPMs. Many recommend removing or disabling the TVIS to eliminate this bump and improve top end


This Is to stop a restriction on 300+bhp as it isnt needed.. I was going to run the stock manifold but due to power levels i want the manifold itself would restricted me..
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UrbanFreestyle




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PostPosted: Wed Jan 11, 2017 8:56 pm    Post subject: Reply with quote Reply with quote including images

Ah so not much benefit on my gen2 stock NA powered beast lol
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Draven




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PostPosted: Thu Jan 12, 2017 3:46 pm    Post subject: Reply with quote Reply with quote including images

UrbanFreestyle wrote:
Ah so not much benefit on my gen2 stock NA powered beast lol


But it is shiny, that has to be worth 2bhp..
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rev2rich
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1991 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Sat Jan 14, 2017 9:01 am    Post subject: Reply with quote Reply with quote including images

Still have this... open to offers as I need the room [thumleft]
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rev2rich
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1991 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Sat Jan 21, 2017 11:15 am    Post subject: Reply with quote Reply with quote including images

25 Delivered [thumleft]
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UrbanFreestyle




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PostPosted: Sat Jan 21, 2017 4:01 pm    Post subject: Reply with quote Reply with quote including images

I'll make an offer at end of the month when I get paid [Wink]
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PostPosted: Tue Jan 24, 2017 2:15 pm    Post subject: Reply with quote Reply with quote including images

This Sale has been completed. The Buyer was tehdub
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