Time Attack ST170 Build - 17/05/11 - More Engine Loom & Dash Stuff

[A16X_TM]

that is a monster turbo matey!!

If you were logged in, you wouldn't be seeing this ad! Register your free account today, or log in if you already have an account.

[Twellsie]

sounds really cool, but I just cant get my head round how it works? will the supercharger allow a certain amount of air to just blow through it?

[Will Pedley]

Originally Posted by Twellsie

sounds really cool, but I just cant get my head round how it works? will the supercharger allow a certain amount of air to just blow through it?

The supercharger pressurizes all the air that enters the engine, i estimate this would be around 10psi on my existing engine and would make around 330bhp.

By fitting the turbo i'll be blowing pressurized air into the intake of the supercharger at again, say 10psi, but as the supercharger is repressurizing the air, it'll enter the engine at more like 26/27psi but will hopefully be at around the same inlet air temperature

In essence all i'm doing is presenting the supercharger with a lot more air!

[XRT_si]

Very cool mate, as oyu know I looked into this a fair bit. Just had too much trouble trying to fit it in a Mk1 Fiesta


Are you literally blowing the turbo straight into the supercharger?

Very cool mate, wish I'd kept with mine

[andy escos]

very good idea will gonna be well punchy on the road

[Will Pedley]

Originally Posted by XRT_si

Very cool mate, as oyu know I looked into this a fair bit. Just had too much trouble trying to fit it in a Mk1 Fiesta


Are you literally blowing the turbo straight into the supercharger?

Very cool mate, wish I'd kept with mine

Yes mate - out the compressor housing and straight into the supercharger intake.

I actually need to thank AustenW for lighting the fuse in me to do this... I'd always been told that the Powerworks charger wouldn't take boost being blown in to it, however, that was all hearsay and i think something of an urban myth as Austen did a lot of research on it and was told that they are safe to take boost!

I had thought about doing this 18months ago but knocked the idea on the head

[-beefy-]

ill speak to you this week fella,


unless you wanna give me a lil tinkle later lol ,


beef

[rst in breaking]

top project will, didnt realise you were going twin charged now

[J1mbo]

how come you using a ported shroud compressor housing will ? and whats the power aims ?

[Will Pedley]

Originally Posted by J1mbo

how come you using a ported shroud compressor housing will ? and whats the power aims ?

500ish power wise... Gone ported shroud to try and increase the efficiency and flow at sub 1 bar boost levels!

Originally Posted by rst in breaking

top project will, didnt realise you were going twin charged now

It's a recent development

[J1mbo]

Originally Posted by Will @ M Developments

500ish power wise... Gone ported shroud to try and increase the efficiency and flow at sub 1 bar boost levels!

It's a recent development

how does a ported shroud effect the turbos efficiency of the turbo bud ?

it flows air around the compressor wheel ?

when we did back to back comparrisons on a gt35 in car

it helps with the surge the gt35 has at 4000-4500 but it made it come on boost slower

jim

[Will Pedley]

Originally Posted by J1mbo

how does a ported shroud effect the turbos efficiency of the turbo bud ?

it flows air around the compressor wheel ?

when we did back to back comparrisons on a gt35 in car

it helps with the surge the gt35 has at 4000-4500 but it made it come on boost slower

jim

Jimbo, don't forget i'm physically sucking air through it, the supercharger is drawing through the turbocharger. The ported shroud will help with that... Also, i shouldn't run anywhere near surge with this setup as the turbo was chosen to be lazy

[Charlie Chalk]

Originally Posted by Will @ M Developments

it'll enter the engine at more like 26/27psi but will hopefully be at around the same inlet air temperature

How does that work, Any reason for not fitting a cooler?

[-beefy-]

will ,


that turbo would look rather nice in my bay wouldnt you say ?

whats it like for yb application

and price wise , pm if you prefer fella ,

beef

[Will Pedley]

Originally Posted by -beefy-

will ,


that turbo would look rather nice in my bay wouldnt you say ?

whats it like for yb application

and price wise , pm if you prefer fella ,

beef

If you want to make 400bhp, you'd do it at 1 bar... If you wanted to make 700bhp, you'd do it at 2.5 bar

Yours for £900 + postage

In fact, buy it and i'll deliver it

[Will Pedley]

Originally Posted by Charlie Chalk

How does that work, Any reason for not fitting a cooler?

Because you are compressing air that is already compressed it culminates as the square of the pressure ratios

I am running a cooler - its a chargecooler and is mounted inside the powerworks unit, hence the using a large turbo to move a lot of air at low boost so as not to superheat the air running 3 bar on a T3

[-beefy-]

oooh sounds stunning , take it there local to you mate ,

god i cant wait to get bk to work ,

ohh and im after 500 lol ,so will that be 1,5 bar pmsl ,

what the scoop with ex side , external gate or they to a internal gated version they do option sizes in the rear or that one fine for it ?

that garrett manifold pattern too ?


beef

[Will Pedley]

Originally Posted by -beefy-

oooh sounds stunning , take it there local to you mate ,

god i cant wait to get bk to work ,

ohh and im after 500 lol ,so will that be 1,5 bar pmsl ,

what the scoop with ex side , external gate or they to a internal gated version they do option sizes in the rear or that one fine for it ?

that garrett manifold pattern too ?


beef

Lol - sadly not local to me Beef, I got it at Autosport on Friday and they've given me a journal bearing core and sold it to me as a roller bearing core...

This one is external gate and it's on a T4 flange.

Honestly - this would be a bit laggy if you just wanted 500bhp, but it would do it effortlessly!

[-beefy-]

well send it bk , tell them the prob , say it was lost in the post ,



and u know my address lol


tbh still got me heart set on a roller t4 like wennys

[Will Pedley]

Originally Posted by -beefy-

well send it bk , tell them the prob , say it was lost in the post ,



and u know my address lol


tbh still got me heart set on a roller t4 like wennys

Honestly, a roller T4 like wennys would suit your needs perfectly. If it did blowjobs and made parmos you'd need nothing else in life

[-beefy-]

Originally Posted by Will @ M Developments

Honestly, a roller T4 like wennys would suit your needs perfectly. If it did blowjobs and made parmos you'd need nothing else in life

afpmsl !!

i just woke out lass up from laughing !!!!!!!


teach her to share a bed !!!

[youngben]

nice mate! going back the the FFOC days didnt ruth run the power works charger with her double charged setup? she was seeing good results if i remember rightly. over 400hp

[Will Pedley]

Originally Posted by youngben

nice mate! going back the the FFOC days didnt ruth run the power works charger with her double charged setup? she was seeing good results if i remember rightly. over 400hp

No mate, she ran a jackson racing supercharger and an RS Turbo T3 from memory. Power was around 300bhp from memory

[blacky.]

looking good will

looks like is a race to central day on who will get there car ready first you or wenny

[youngben]

Originally Posted by Will @ M Developments

No mate, she ran a jackson racing supercharger and an RS Turbo T3 from memory. Power was around 300bhp from memory

ahh riteo! only focus i can think of with the same sort of idea! look forward to seeing the outcome mate! your cars have allways had the best from what i have seen

[Will Pedley]

Well, turbo has been confirmed as a journal bearing and so is going back to the states...

Planning to grab a Garrett GT series unit now

[J1mbo]

Originally Posted by Will @ M Developments

Jimbo, don't forget i'm physically sucking air through it, the supercharger is drawing through the turbocharger. The ported shroud will help with that... Also, i shouldn't run anywhere near surge with this setup as the turbo was chosen to be lazy

so the air thats going around the comp wheel is helping the superchargers sucking (in leighmans terms ) ? cool

i was just saying that it will not help with the turbo coming on boost, but i dont know how yours is going to work

will it just be like a turbo charged engine, with a super charger between the compresser outlet and the charge cooler ??

[blacky.]

jimbo simple way of thinking about it

low engine speeds the charger is doing the work the turbo is just a small restriction on the inlet

higher engine speeds the turbo starts to work making the charger work more efficiantly due to the higher inlet preshure

all told will is wanting to get a higher boost preshure without the inlet temp getting to high as upping the boost of the charger would do or useing a smaller turbo on its own

[J1mbo]

Originally Posted by blacky.

jimbo simple way of thinking about it

low engine speeds the charger is doing the work the turbo is just a small restriction on the inlet

higher engine speeds the turbo starts to work making the charger work more efficiantly due to the higher inlet preshure

all told will is wanting to get a higher boost preshure without the inlet temp getting to high as upping the boost of the charger would do or useing a smaller turbo on its own

i know how it works fella just trying to get the layout into my head mmm superturbo charged 1.4 escort

[blacky.]

lol there is enough room in the bay of your escort to fit a big cooler though so no need to fit both

the focus is a bit more cramped

[Will Pedley]

Well, this little puppy was ordered mid afternoon monday and they delivered at 9.32am this morning... from the states :shock:

Well impressed

Precision 46mm External Wastegate






Contains everything a growing lunatic needs

[AquariousRS]

How much difference is there in that to a Tial item?

[J1mbo]

nothing much ! diaphragm is slightly different, and the shape, also two take offs for pressure under the diaphragm, i think thats it !

[Will Pedley]

Erm, the tial kit comes with 1 spring... The precision comes with all of them! Thats a £15 a spring saving The precision will fit onto a 44mm Tial take off, but obviously you'll lose 2mm of gas flow. Oh and i think it's more appropriately priced

[Will Pedley]

Oh -and in case the name didn't give it away, it's 46mm in and out

[AquariousRS]

Cant complain at that then can you

[AustenW]

Looks a nice piece of kit

[turbotoaster]

Originally Posted by Will @ M Developments

Because the engine is high compression, i will most probably have to run a dilution of race fuel with every fill up to ensure the flame front burn rate is controlled and doesn't cause any detonation.

or you could run a larger jet on your water injection to slow the burn down to hold of knock, say go from 300cc/min up to 500cc/min which would be about right for 500-550bhp.

saves you having to mix racefuel in everytime you go the petrol station, just top up your water a little bit more often

[Will Pedley]

Originally Posted by turbotoaster

or you could run a larger jet on your water injection to slow the burn down to hold of knock, say go from 300cc/min up to 500cc/min which would be about right for 500-550bhp.

saves you having to mix racefuel in everytime you go the petrol station, just top up your water a little bit more often

Nice in theory but i would NEVER ever rely on water injection to hold my engine together.

Jets, lines etc. get blocked very easily!

Water injection will be turned off for mapping, the car will be mapped safe and then it will be turned back on as an additional safety measure!

[Stu @ M Developments]

Originally Posted by Will @ M Developments

Nice in theory but i would NEVER ever rely on water injection to hold my engine together.

Nobody should do that. Ever. Its a last chance suppressant only.
Anyway Will, I feel a tin of power pour per tank at £15 a tub will allow you to run this baby at good power without the need for expensive finger eating race fuel. Worth a thought.