What Engine for 500BHP
Discussion
Boosted LS1 said:
Holy thread ressurection batman! There must be a medal for you somewhere in PH towers.
Somebody will be along with witty photographs to celebrate this great occasion
Blimey - doesn't time fly, wouldn't of said that the thread was 2 years old!Somebody will be along with witty photographs to celebrate this great occasion
Good choice btw; reasonable NA displacement with a turbo! How did you arrive at the choice of turbo? and will you be running the engine std or upgrading the intenrals?
turbonutter said:
Things take time, but I am nearly ready to start the engine build.
My final choice for the staratos replica is an Alfa 3.2 V6 Going the turbo route with a Single Garrett GT3582 ball bearing turbo 0.82AR.
When i get started I will post updates.
Cheers
Neil
Looking forward to seeing your progress on this as i've recently acquired a 3.0 and want to strap a s/c to it so i'm interested to see how you get on with the FI.My final choice for the staratos replica is an Alfa 3.2 V6 Going the turbo route with a Single Garrett GT3582 ball bearing turbo 0.82AR.
When i get started I will post updates.
Cheers
Neil
I'll pipe up here as I'm doing a supercharged 3l 12V Alfa V6 at the moment. Well, second version really. First attempt was flawed from the start as I just bolted a very tired M90 to a half-decent NA spec motor. Not surprisingly, it didn't work that great really so I'm having another go.
I don't want to hijack Neils turbo thread, so PM me if you want any more info.
I don't want to hijack Neils turbo thread, so PM me if you want any more info.
eliot said:
Boosted LS1 said:
Holy thread ressurection batman! There must be a medal for you somewhere in PH towers.
Somebody will be along with witty photographs to celebrate this great occasion
Blimey - doesn't time fly, wouldn't of said that the thread was 2 years old!Somebody will be along with witty photographs to celebrate this great occasion
Good choice btw; reasonable NA displacement with a turbo! How did you arrive at the choice of turbo? and will you be running the engine std or upgrading the intenrals?
eliot said:
Boosted LS1 said:
Holy thread ressurection batman! There must be a medal for you somewhere in PH towers.
Somebody will be along with witty photographs to celebrate this great occasion
Blimey - doesn't time fly, wouldn't of said that the thread was 2 years old!Somebody will be along with witty photographs to celebrate this great occasion
Good choice btw; reasonable NA displacement with a turbo! How did you arrive at the choice of turbo? and will you be running the engine std or upgrading the intenrals?
There is a question over which AR to use for the turbine housing 0.82AR or 1.02AR. Most likely I will go with .82 as the response will be better. If I find that ultimately it is too small then I can change it relativly easily. I am going with a Tial Stainless Turbine housing for ease of fitment & slightly better gas flow, along with a Tial V44 Waste Gate & tial 50mm BOV.
My budget has also doubled from my initial "hope" to a more realistic 10K+.
Internals I will be using Floged 8:1 CR pistons, machining a grove in the liner tops. I am truing to find out what power the Con rods will take, but havent found out so far. If I cant get confirmation that they are good enough then I had thought to use THS Rods which are good for at least 700BHP.
The engine will have a billet steel flywheel & Tilton Clutch.
It will be january before I start, so the thread will go on for a while! It dosent help that i work away for half of the year!
Neil
Well Things are progressing finally.
I have started on the engine change. The new engine is fitted in the car & I have most of the parts I need.
As I said I am going with the Alfa 3.2 V6.
The engine will be stock apart from 8.5:1 low compression CP pistons & forged rods From THS.
I have a custom flywheel from TTV which weighs in at 3.2 KG. This will be fitted with a Tilton OT-II Ceremetalic twin Plate clutch.
I Have made custom alloy fuel rails & will use 600CC Injectors & a Fuel Lab Fuel Injection Pump & Filters This will take suction from a swirl pot that will be filled with an Aeromotive pump.
The turbo is a GT3582R from Garret with a Stainless Turbine housing A/R 0.82. With Tial's latest 44mm MVR Waste Gate & a Tial 50mm BOV.
Its due to go for the exhaust to be fabricated at the end of next week. This will be made by OJZ engineering.
I am going to use a PWR Charge cooler system with a 7x10 charge cooler & 700x350mm pre rad.
Along with the engine are various other mods to the car & bodywork, so it will take a while to complete.
The main other mod is to upgrade the brakes & to that eng i am fitting 325mm discs at each corner & HI-Spec 4 pot calipers.
Some photos below
I have started on the engine change. The new engine is fitted in the car & I have most of the parts I need.
As I said I am going with the Alfa 3.2 V6.
The engine will be stock apart from 8.5:1 low compression CP pistons & forged rods From THS.
I have a custom flywheel from TTV which weighs in at 3.2 KG. This will be fitted with a Tilton OT-II Ceremetalic twin Plate clutch.
I Have made custom alloy fuel rails & will use 600CC Injectors & a Fuel Lab Fuel Injection Pump & Filters This will take suction from a swirl pot that will be filled with an Aeromotive pump.
The turbo is a GT3582R from Garret with a Stainless Turbine housing A/R 0.82. With Tial's latest 44mm MVR Waste Gate & a Tial 50mm BOV.
Its due to go for the exhaust to be fabricated at the end of next week. This will be made by OJZ engineering.
I am going to use a PWR Charge cooler system with a 7x10 charge cooler & 700x350mm pre rad.
Along with the engine are various other mods to the car & bodywork, so it will take a while to complete.
The main other mod is to upgrade the brakes & to that eng i am fitting 325mm discs at each corner & HI-Spec 4 pot calipers.
Some photos below
Edited by turbonutter on Sunday 8th August 22:07
nice work.
Not a fan on those pwr chargecoolers. I cant obtain any data on them. seemingly a photo of a drag spec evo means it must work??! There was a thread on here a long time ago about them.
At the very least you will want a much larger pre rad than the one you have - 40 sq. inches is a figure that comes to mind. Hopefully you have the bosch PCA12 pump which is a decent part and is almost silient.
After spending years obsessing with chargecoolers, i went over to air air. Only reason to run water-air is for packaging reasons imo.
Not a fan on those pwr chargecoolers. I cant obtain any data on them. seemingly a photo of a drag spec evo means it must work??! There was a thread on here a long time ago about them.
At the very least you will want a much larger pre rad than the one you have - 40 sq. inches is a figure that comes to mind. Hopefully you have the bosch PCA12 pump which is a decent part and is almost silient.
After spending years obsessing with chargecoolers, i went over to air air. Only reason to run water-air is for packaging reasons imo.
Thanks Still lots to do as you can see.
The picture with the charge cooler is of a cooler for the gearbox.
I have a 620x350 rad for the charge cooling so 350 SQ Inch. PWR say it will work, infact it is bigger than i should need - if not they will find a solution.
Cooling is with a Davis Craig EWP 115 pump & 25mm pipes.
Charge cooling either seems to work or it dosent, hopefully this one will be one that works. Big Cooler, Big Rad & Big Pump. The rad was made & designed by PWR, so should do the business!
The pre rad was made oversize to cover my main rad fully, to ensure full airflow through both. The fin density was reduced slightly to keep the airflow up for the main rad. The guys at PWR seem to know their stuff but I wont really know until i try it.
It makes for a much easier installation in a stratos, so hopefully it will work well.
The picture with the charge cooler is of a cooler for the gearbox.
I have a 620x350 rad for the charge cooling so 350 SQ Inch. PWR say it will work, infact it is bigger than i should need - if not they will find a solution.
Cooling is with a Davis Craig EWP 115 pump & 25mm pipes.
Charge cooling either seems to work or it dosent, hopefully this one will be one that works. Big Cooler, Big Rad & Big Pump. The rad was made & designed by PWR, so should do the business!
The pre rad was made oversize to cover my main rad fully, to ensure full airflow through both. The fin density was reduced slightly to keep the airflow up for the main rad. The guys at PWR seem to know their stuff but I wont really know until i try it.
It makes for a much easier installation in a stratos, so hopefully it will work well.
Edited by turbonutter on Sunday 8th August 23:25
turbonutter said:
Thanks Still lots to do as you can see.
The picture with the charge cooler is of a cooler for the gearbox.
I have a 620x350 rad for the charge cooling so 350 SQ Inch. PWR say it will work, infact it is bigger than i should need - if not they will find a solution.
Cooling is with a Davis Craig EWP 115 pump & 25mm pipes.
Charge cooling either seems to work or it dosent, hopefully this one will be one that works. Big Cooler, Big Rad & Big Pump. The rad was made & designed by PWR, so should do the business!
The pre rad was made oversize to cover my main rad fully, to ensure full airflow through both. The fin density was reduced slightly to keep the airflow up for the main rad. The guys at PWR seem to know their stuff but I wont really know until i try it.
It makes for a much easier installation in a stratos, so hopefully it will work well.
Glad to hear that the pre-rad is the same size as the main water radiator - sounds about the right size. Listen to the pump for cavitation - they are centrifugal and like a flooded suction. You may need a header tank.The picture with the charge cooler is of a cooler for the gearbox.
I have a 620x350 rad for the charge cooling so 350 SQ Inch. PWR say it will work, infact it is bigger than i should need - if not they will find a solution.
Cooling is with a Davis Craig EWP 115 pump & 25mm pipes.
Charge cooling either seems to work or it dosent, hopefully this one will be one that works. Big Cooler, Big Rad & Big Pump. The rad was made & designed by PWR, so should do the business!
The pre rad was made oversize to cover my main rad fully, to ensure full airflow through both. The fin density was reduced slightly to keep the airflow up for the main rad. The guys at PWR seem to know their stuff but I wont really know until i try it.
It makes for a much easier installation in a stratos, so hopefully it will work well.
Edited by turbonutter on Sunday 8th August 23:25
eliot said:
turbonutter said:
Thanks Still lots to do as you can see.
The picture with the charge cooler is of a cooler for the gearbox.
I have a 620x350 rad for the charge cooling so 350 SQ Inch. PWR say it will work, infact it is bigger than i should need - if not they will find a solution.
Cooling is with a Davis Craig EWP 115 pump & 25mm pipes.
Charge cooling either seems to work or it dosent, hopefully this one will be one that works. Big Cooler, Big Rad & Big Pump. The rad was made & designed by PWR, so should do the business!
The pre rad was made oversize to cover my main rad fully, to ensure full airflow through both. The fin density was reduced slightly to keep the airflow up for the main rad. The guys at PWR seem to know their stuff but I wont really know until i try it.
It makes for a much easier installation in a stratos, so hopefully it will work well.
Glad to hear that the pre-rad is the same size as the main water radiator - sounds about the right size. Listen to the pump for cavitation - they are centrifugal and like a flooded suction. You may need a header tank.The picture with the charge cooler is of a cooler for the gearbox.
I have a 620x350 rad for the charge cooling so 350 SQ Inch. PWR say it will work, infact it is bigger than i should need - if not they will find a solution.
Cooling is with a Davis Craig EWP 115 pump & 25mm pipes.
Charge cooling either seems to work or it dosent, hopefully this one will be one that works. Big Cooler, Big Rad & Big Pump. The rad was made & designed by PWR, so should do the business!
The pre rad was made oversize to cover my main rad fully, to ensure full airflow through both. The fin density was reduced slightly to keep the airflow up for the main rad. The guys at PWR seem to know their stuff but I wont really know until i try it.
It makes for a much easier installation in a stratos, so hopefully it will work well.
Edited by turbonutter on Sunday 8th August 23:25
The pump will be sucking from a swirl pot/headder tank, pumping through the prerad & then through the charge cooler & back to the swirl pot, so It should work Well.
stevieturbo said:
Who's making it ? looks like nice work.
Its been made by OJZ Engineering & yes he does great work. For me he is 5 miles down the road which is very handy. www.ojzengineering.co.ukHis work isnt cheap, but if you want quality you have to pay for it - my system is made from 321 stainless to cope with the heat & that adds to the cost over a normal exhaust.
eliot said:
I was about to say cant you get the turbo closer to the engine, then I remembered its a V6!
That was as close as we could get it and keep everything balanced. I had suggested putting the turbo behind the engine, but then it would have had one short path from the rear bank & a long one from the front.Over the gearbox causes a few issues with keeping the box cool - some good heat shields will be needed, but exhaust wise the headders are all equal length, as is the lenth from each bank to the turbo. The entry into the wastegate is also nicely flowed, as you can see in the photo.
I will post some photos of the finished system.
turbonutter said:
stevieturbo said:
Who's making it ? looks like nice work.
Its been made by OJZ Engineering & yes he does great work. For me he is 5 miles down the road which is very handy. www.ojzengineering.co.ukHis work isnt cheap, but if you want quality you have to pay for it - my system is made from 321 stainless to cope with the heat & that adds to the cost over a normal exhaust.
stevieturbo said:
turbonutter said:
stevieturbo said:
Who's making it ? looks like nice work.
Its been made by OJZ Engineering & yes he does great work. For me he is 5 miles down the road which is very handy. www.ojzengineering.co.ukHis work isnt cheap, but if you want quality you have to pay for it - my system is made from 321 stainless to cope with the heat & that adds to the cost over a normal exhaust.
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