520SX progress report
Discussion
Well the engine had its first dyno run at John Eales with the blower and it looks very promising indeed. 500+lb/ft torque with 400lb/ft at around 2700. Engine runs really sweetly - idles at around 650 rpm - and is over 450 bhp. Currently fine tuning inlet paths and air flow to help the top end and then the water injection will be set up and a few more horses released. The Chargecooler is very good but it needs bigger inlets to help the air flow.
BTW water injection does need a high pressure pump (100psi) and an atomising jet. I'm using an Aquamist MF2 to map the WI in a similar way to that the ECU maps the fuelling. The idea is to use it like an insurance policy rather than rely on it. It won't be replacing the chargecooler.
BTW water injection does need a high pressure pump (100psi) and an atomising jet. I'm using an Aquamist MF2 to map the WI in a similar way to that the ECU maps the fuelling. The idea is to use it like an insurance policy rather than rely on it. It won't be replacing the chargecooler.
l33 said:
And that lump will fit in a wedge?
Yes. It is a tight fit and I use the original headers. All the layout etc was done with the engine in place so I knew it would fit. All the ancillaries have been moved about. All the pipework and additional tanks pumps for the WI and Chargecooler have been fitted. Charge cooler rad is located in the nose. Getting very good at metal bashing these days... The space where the headlamp pods were came in pretty useful as well
And yes I have it insured so I can drive it on the road....
Eeeeenteresting... so - that's the charge cooler we can see at the front with a couple of pipes dangling down? Is the water flow through the remote rad pumped? I spose you'll have to wait until its installed before getting some steady-state readings, but I'd be interested to know what the water temperature is like entering/leaving the cooler.
Also whereabouts in the induction track is the water injection going to be installed?
- Adam
Also whereabouts in the induction track is the water injection going to be installed?
- Adam
Yes that is the charge cooler. It has a seperate cooling system (rad, electric pump etc. It was keeeping the charge temps below 60 deg and you could feel the difference on the pipes before and after. And that was on both the air and water.
Without it, John has seen temps reach three figures with far less boost and has come to the conclusion that it is essential for these type of configurations but you have a different type of supercharger and are not running at the air flow/compression levels that this setup does.
The water injection goes in the pipe before the air box after the charge cooler.
Without it, John has seen temps reach three figures with far less boost and has come to the conclusion that it is essential for these type of configurations but you have a different type of supercharger and are not running at the air flow/compression levels that this setup does.
The water injection goes in the pipe before the air box after the charge cooler.
FrenchTVR said:
rev-erend said:
No - it's a track car : so unlikely..
Errr Rev..
shpub said:
And yes I have it insured so I can drive it on the road....
Edited by FrenchTVR on Friday 11th August 13:16
Come on French- you know he drives it to the track..
Amesome that's it road legal though
Am I right in thinking that the charge cooler is a heat exchanger between the compressed inlet air and a seperate radiator system with circulating water? The charge cooler doesn't need to have airflow over it at all.
If you think that the inlet/outlet on the charge cooler are too small have you considered using two in parallel. You can probably use the existing rad at the front because the amount of heat you want to shift is the same but with two in parallel your airflow should be that much less restricted.
But where are you going to put the other one?
If you think that the inlet/outlet on the charge cooler are too small have you considered using two in parallel. You can probably use the existing rad at the front because the amount of heat you want to shift is the same but with two in parallel your airflow should be that much less restricted.
But where are you going to put the other one?
TVR 3X said:
Am I right in thinking that the charge cooler is a heat exchanger between the compressed inlet air and a seperate radiator system with circulating water? The charge cooler doesn't need to have airflow over it at all.
If you think that the inlet/outlet on the charge cooler are too small have you considered using two in parallel. You can probably use the existing rad at the front because the amount of heat you want to shift is the same but with two in parallel your airflow should be that much less restricted.
But where are you going to put the other one?
If you think that the inlet/outlet on the charge cooler are too small have you considered using two in parallel. You can probably use the existing rad at the front because the amount of heat you want to shift is the same but with two in parallel your airflow should be that much less restricted.
But where are you going to put the other one?
Yes. More efficient at getting rid of the heat. The core size is fine it is more of getting a good unrestrictive flow. To give you some idea of the amount of air and pressure, the blower is providing about 1000 cubic feet per minute. One rubber hose with spiral rubber we used as an experiment actually burst.
Anyway no space for another as you say.
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