tvr progress
Turbo Mini Forums

it separates the pulses and make pool up sooner.


so im guessing around 300 to 350 bhp ish brett?

that spool more slowly than i would have expected .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Attachments:

32.63kb

13.05kb

73.47kb

Edited by Brett on 2nd May, 2016.

Yes i moved to the darkside

Instagram @jdm_brett

ah , my mistake brett, i forgot it was a 6 cylinder , 400 to 450 then . :)

should be a fascinating experiment to make a spool valve for it .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

41 USD. That seams like a steal.

I can only see the benefit of a machined wheel from our perspective is that it looks pretty. We are not heat cycling them quite in the same way as a lorry would so I really do see no benefit.

That is for a standard geometry wheel of course. I imageine some gemoetries cannot be cast and must be machined.

Anyhow for comparison as brett has done.

My turbo on a 1847cc engine with VVT (certianly helps the spool)

Compressor. 54.20/66.57
Turbine. 45/50

That starts building into positive pressure at around 3400RPM By 3800rpm its at 28PSI of boost.

What are your throughs on manifold volume in regards to spool?

Oh and btw this is the manifold i hope to create next summer. Although It is a twin scroll design. I hope to use a hx40 7 Blade or perhaps a 6 blade. With the right camshaft the engine should be happy to 9500rpm. All this is in the objective of running a 10.XX on the 1/4 with a full weight car. Im currently sat at 12.3 with the hybrid ko4 setup.

Attachments:

673.58kb

Edited by Sam on 3rd May, 2016.

thats for the bog stock cast wheel sam .re header volume ,so many variables not something i can comment on .

you should start a thread with more detail?


regards
robert.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

It was more of bouncing some ideas of someone with clearly a lot of knowledge

yummers ,my sexy new wheel arrived all the way from vancouver in 5 days.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

YUM!

Looks space age!

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Looking good,

Yes i moved to the darkside

Instagram @jdm_brett

finally got all this bolted together , now just a snapped off water pump bolt to fix ,and it can go in ..

compared to the old one ...

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Good work Roberto

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

Damn that is big.. what displacement is the tvr?

Yes i moved to the darkside

Instagram @jdm_brett

3.5 litre Brett ,but only about 220 bhp na , that big turbo is a 65mm inducer , but a huge 80mm turbine exducer ,and a 25cm housing , the new one is a 60/65/ 16cm ,so just way smaller on the turbine side.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Did you ever Dyno it Robert?

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

If something is worth doing, it's worth doing half of.

yes mike , on 9 psi with no cooling on the ic , it did 250 bhp @4500 ,and 296 lbs/ft . it was running lean , but that was the bhp limit of the rolling road at that time .


with it richer ,and running 12 psi , the quarter mile dropped from 13.1 to around a estimated 12.3 . or it would have been if i had not turned the water off halfway and locked it up lol. in reality it crossed the line 10 mph down and ran a 12.85.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

What gearbox is it running?

A rover 5 speed slightly up rated . When I was racing it it ran a ford c4 auto but with a clutch not a torque converter. I don't expect this box to last very long and have a t5 to go in.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Ahh, ok. You seem to have a particular fondness of gearbox destruction.

What's the rolling road limit these days?

480 at the wheels.maybe 500 at a pinch .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Is that going to be enough?

yes rob , i want ot get back to medusa so wont have this on kill.

bit more progress , just heat shields and exhaust to go on now ..

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

got it on the rd and its a lot lot better ,boost 1800 ,5 psi at 2500 .










only drawback is it smokes on the re application of throttle after boost .no smoke on tickover or cruise .

looking at my oil drain ,19mm using the holset drain tube , its a bit horizontal .i can clock the housing to 30 degree ,and that might help ,due to it raising the drain . weird ,this setup worked perfectly on the old holset , but it was about a inch higher .
so good ,and bad .

regards
robert.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM