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VERY interesting project coming


dude

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Put the car on the dyno to get some baseline figures/temps and first run in ernest popped the IC hose off inside the wing, also appears the BC is doing sod all:rolleyes:

 

Car made 520hp @1.2 bar, will post pics of the inside of the box tomorrow after we turn the boost up;)

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Put the car on the dyno to get some baseline figures/temps and first run in ernest popped the IC hose off inside the wing, also appears the BC is doing sod all:rolleyes:

 

Car made 520hp @1.2 bar, will post pics of the inside of the box tomorrow after we turn the boost up;)

 

Is this your car Dude?

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No JP, its adams, Jagman. Auto with a T67 and e manage blue, mines being torn apart, all the flocked panels swapped over, stereo out BC out all the ecu and related stuff removed, being measured up for the new loom for the ECU next week and the 3.4 kit is ordered, prob change the clutch to a Tilton and susp to a new HKS drag set.

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Rain stopped play !!-I expect many such issues as pipes coming off :)

As there are a few stages to the complete project , it makes sense to base deltas from a known starting position .

Charge cooling is just one aspect, and kinda removes the lack of real data around for CC s.

Some may have already Sussed that pre compressor water meth injection is part of the agenda , but in a different way ..........

One step at a time

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  • 2 weeks later...

We are still acumalating parts, we can make a start gathering some data and starting to fit the mods but we would rather have a few things ready so we can show a number of diff mods and their effect. Plus AFR have taken over Enhanced Performance so there was a fair bit of outlay involved on top of the move so the TIG welder needs to wait for a couple of weeks and we WILL be needing the TIG welder.

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We are still acumalating parts, we can make a start gathering some data and starting to fit the mods but we would rather have a few things ready so we can show a number of diff mods and their effect. Plus AFR have taken over Enhanced Performance so there was a fair bit of outlay involved on top of the move so the TIG welder needs to wait for a couple of weeks and we WILL be needing the TIG welder.

 

Who was Enhanced Performance John, the guys that you're in with ?

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  • 1 month later...

bit of an overview if anyones interested! ;

 

Water Meth injection pre compressor works , its been done, BUT there are some issues ;

Compressor blade erosion - this can happen at the blade tips and leading edges , where the blade speed is high and size of the droplets too large it simply erodes the material of the blades .

what has been done is to spray water /meth into the center of the compressor wheel (where the speed is slower) and use as fine a spray as possible - down to around 10 microns

Problem ;water droplets coalesce , ie they merge together into larger droplets , so 2 x10 micron droplets can easily join to make a 20 micro droplet , and so on , This makes the distance from spray nozzel to compressor critical as if too far away then coalescence becomes greater .

Also if the spray hits any solid parts like the intake pipe it will again coalesce on contact .

Any "pooling" of water when the spray is shut off also can cause problems .

As a possible solution ; I want to pass the water/meth through a very high speed fan , this will shatter the droplets into smaller droplets ,and accelerate the spray to circa 140 mph , the velocity increase will stop the water coalescing , there is not enough time for the water to change state at high velocity , this removes the distance criteria between spray and compressor .

Note the fan is not a pressure increasing fan , but a velocity fan , it would load the blades too much if it tried to pressure

This faster moving air now has the potential to be 'shaped" and matched to the compressor , (too much explanation needed) unlike the slower moving normal intake air ,and to a point will offload the compressor at the early part of the spooling .(again too much explanation needed)

There will be in effect 2 intakes one siamesed into the other ,one fan assisted and one not , the turbo compressor will always out run the fan air/water so then use the normal intake , merging the two flows is complex.

The goal is to improve the spool time and improve/extend the compressor map ,raise boost , and remove the FMIC ,all with less det - the charge cooler is there as a belt and brace so should water /meth run out then there is still post compressor cooling and allow a lower boost level still to be used , a secondary water meth injection is also to be fitted pre throttle body .

Enhanced cooling later ..more later

As you can see much testing is needed and I can find no reference to anyone ever trying this method ,anyway thats the overview in brief of the initial phase

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There is an interesting video here, http://www.aquamist.co.uk/vbulletin/showthread.php?t=624 on how WI/vapor behaves inside the plenum under boost, the subject of injecting into the centre of the compressor turbine has been covered a few times, and generally its considered that although a good idea for some of the reasons you have covered, because of the water vapor's behavior once past the turbine, and this is where the video comes in,

Injecting after the intercooler/chargecooler, and or before the throttle body, or even direct port injection is thought to be just as or more effective.

 

There is a lot of interesting reading, regarding on the Aquamist site, both recent experiment's, and the original WW2 aircraft stuff.

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