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IMPRTETA
Fordmods Stock as a Rock
Age:20
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 Posted: Fri Jan 11, 2008 9:24 pm Post subject: |
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| markr154 wrote: | The E-series kit is not fully developed yet ...Tim from Raptor needs about 6 weeks to confidently release it.
Things to consider are your compression ratio (the Raptor needs about 8.6, so a decomp plate and head shaving are likely to be needed if you have a big cam) ...and the size of your extractors (primary pipe needs to be 40 mm diameter minimum). |
Um shaving the head actually increses the comp ratio, just use 1 or 2 au steel gaskets if u wanted to decrease the comp ratio.
cheers
Simon |
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markr154
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| Posted: Fri Jan 11, 2008 9:53 pm Post subject: |
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| IMPRTETA wrote: | | markr154 wrote: | The E-series kit is not fully developed yet ...Tim from Raptor needs about 6 weeks to confidently release it.
Things to consider are your compression ratio (the Raptor needs about 8.6, so a decomp plate and head shaving are likely to be needed if you have a big cam) ...and the size of your extractors (primary pipe needs to be 40 mm diameter minimum). |
Um shaving the head actually increses the comp ratio, just use 1 or 2 au steel gaskets if u wanted to decrease the comp ratio.
cheers
Simon |
Haha ...cheers  |
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fritzz
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| Posted: Fri Jan 11, 2008 10:15 pm Post subject: |
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and you are actually less likely to have to decrees comp if u have a big cam  big cams bleed of pressure.
stock compression is fine, unless u want big boost and big numbers witch a raptor isn't likely to produce anyway. |
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Slick
Fordmods - Getting Side Ways
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| Posted: Fri Jan 11, 2008 10:20 pm Post subject: |
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| fritzz wrote: | and you are actually less likely to have to decrees comp if u have a big cam big cams bleed of pressure.
stock compression is fine, unless u want big boost and big numbers witch a raptor isn't likely to produce anyway. |
The raptor V generic model makes 17psi as I recall. |
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xr8ute
Fordmods - Getting Side Ways
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| Posted: Fri Jan 11, 2008 10:55 pm Post subject: |
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| Slick wrote: | | fritzz wrote: | and you are actually less likely to have to decrees comp if u have a big cam big cams bleed of pressure.
stock compression is fine, unless u want big boost and big numbers witch a raptor isn't likely to produce anyway. |
The raptor V generic model makes 17psi as I recall. |
On what motor? I doubt a Raptor V could pump enough air volume to produce 17psi of boost on any healthy Falcon 4.0L.....its smaller than a Powerdyne BD11a.
Remember, a blower doesn't "make boost", it just pumps air. |
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IMPRTETA
Fordmods Stock as a Rock
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| Posted: Sat Jan 12, 2008 7:58 am Post subject: |
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Model= Raptor V
Suits engine= <5.0L
Impeller diameter= 128mm
Inlet hose= 82mm
discharge hose= 63mm
Pressure= 10psi
wieght=5.5kg
bearings= Ball ceramic
Model= Raptor R
Suits engine= 5.5 - 10L
Impeller diameter= 155mm
Inlet hose= 100mm
discharge hose= 75mm
Pressure= 17psi
wieght=6.5kg
bearings= Ball ceramic
mmm Raptor V 10psi......well thats wat it say in the specs......... but on wat motor? |
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xr8ute
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| Posted: Sat Jan 12, 2008 3:48 pm Post subject: |
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| Those specs do not say that the Raptor V head unit will make 17psi on a 4.0L.....have a think about what it really means. |
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schnoods
Fordmods - Getting Side Ways
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| Posted: Sat Jan 12, 2008 4:22 pm Post subject: |
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If you give it the revs, it will generate the boost....
It would have no probs supplying a 4ltr.
just remember that these aren't a direct drive of the compressor shaft and they are geared to spin the shaft faster than the pulley speed. I'd imagine seeing 30 000 +rpm with the shaft speed at full revs (around 5 000ish) from the falcon.
I know that the Vortech s trim has limitations of 50 000rpm (safely) and to generate more boost, its a matter of stepping up to a blower with bigger housings and straight cut gears for the gear drive (against helical).
I almost a bought a Raptor until the bumped up their prices to $2500. Now im glad i didnt. |
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Slick
Fordmods - Getting Side Ways
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| Posted: Sat Jan 12, 2008 4:37 pm Post subject: |
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| xr8ute wrote: | | Those specs do not say that the Raptor V head unit will make 17psi on a 4.0L.....have a think about what it really means. |
"Raptor V Hybrid coming for Dec 07, pressure to 17psi"
if you read half way down the page you won't miss it.
http://www.raptorsc.com.au/products.php
By the way, boost is just a fancy name for compressed air. lol |
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xr8ute
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| Posted: Sat Jan 12, 2008 5:17 pm Post subject: |
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You miss my point. The compressor may work up to 17psi....but on what engine will it make that much boost? A 2L Pinto-engined Escort maybe, but I seriously doubt it on a 4.0L. |
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Slick
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| Posted: Sat Jan 12, 2008 6:06 pm Post subject: |
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| xr8ute wrote: |
You miss my point. The compressor may work up to 17psi....but on what engine will it make that much boost? A 2L Pinto-engined Escort maybe, but I seriously doubt it on a 4.0L. |
I see what you mean. the only one who could answer that is the guys at raptor. just asked them what they mean by raptor V hybrid, will it make 17psi on a 4.0L i6 or is it just different overdrive gears/pulley?!?! |
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3.9from hell
Fordmods Parts Gopher
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| Posted: Sun Jan 13, 2008 12:53 am Post subject: |
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a supercharger or any pump for that matter produces flow of whatever fluid media it is pumping, in this case air
flow can only be measured in volume ie litres per hour
at a given rpm the blower wil move a certain volume (litres) of air at a certain rate (per hour)
now, an engine producing a given hp at a given eficiency will use a certain volume of air over a given time frame
again measured in litres per hour
if the blower/turbo etc in question moves more volume of air per hour than the engine consumes then the air will back up in the inlet tract and become pressurised and form the condition we know as "boost"
now boost can be measured in a unit of pressure ie psi, kpa, bar etc
boost quite simply is a measurement of what percentage of the air suplied by the pump is consumed by the engine
in a way it is an indication of the restriction in the inlet AFTER the pump
therefore to have a manufacturer claim a "maximum psi" is at best misleading |
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Slick
Fordmods - Getting Side Ways
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| Posted: Sun Jan 13, 2008 5:28 am Post subject: |
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| Whats the max CFM of our 4.0L i6 at maximum rpm anyone? |
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schnoods
Fordmods - Getting Side Ways
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| Posted: Sun Jan 13, 2008 12:38 pm Post subject: |
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| 3.9from hell wrote: | a supercharger or any pump for that matter produces flow of whatever fluid media it is pumping, in this case air
flow can only be measured in volume ie litres per hour
at a given rpm the blower wil move a certain volume (litres) of air at a certain rate (per hour)
now, an engine producing a given hp at a given eficiency will use a certain volume of air over a given time frame
again measured in litres per hour
if the blower/turbo etc in question moves more volume of air per hour than the engine consumes then the air will back up in the inlet tract and become pressurised and form the condition we know as "boost"
now boost can be measured in a unit of pressure ie psi, kpa, bar etc
boost quite simply is a measurement of what percentage of the air suplied by the pump is consumed by the engine
in a way it is an indication of the restriction in the inlet AFTER the pump
therefore to have a manufacturer claim a "maximum psi" is at best misleading |
The max psi would be a Safe Working Condition.
Being a non oiled system there would be a safe rev limit for the blower, mainly due to the gears in there, it basicall depends on what size blower drive pulley you have on there and what the motor driving it will rev out to.
I still wouldn't even try to get it near the revs required to make 17 psi on that blower, I'd be stepping up to a t trim Vortech or even a procharger..
It says in the specs 17psi, discharge outlet 75mm (3"), so if the specs are right it can flow 17psi at large volumes too. No point having 17 psi with a very small discharge if by the time it hits a larger chamber the pressure will dissapate.
I reckon it flow the 17 psi needed to supply the 4ltr, even more, just that with that sort of boost, i'd be looking at a serious blower that can take it with ease and previous results rather than an up and comer. |
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Slick
Fordmods - Getting Side Ways
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| Posted: Sun Jan 13, 2008 1:37 pm Post subject: |
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| schnoods wrote: | | 3.9from hell wrote: | a supercharger or any pump for that matter produces flow of whatever fluid media it is pumping, in this case air
flow can only be measured in volume ie litres per hour
at a given rpm the blower wil move a certain volume (litres) of air at a certain rate (per hour)
now, an engine producing a given hp at a given eficiency will use a certain volume of air over a given time frame
again measured in litres per hour
if the blower/turbo etc in question moves more volume of air per hour than the engine consumes then the air will back up in the inlet tract and become pressurised and form the condition we know as "boost"
now boost can be measured in a unit of pressure ie psi, kpa, bar etc
boost quite simply is a measurement of what percentage of the air suplied by the pump is consumed by the engine
in a way it is an indication of the restriction in the inlet AFTER the pump
therefore to have a manufacturer claim a "maximum psi" is at best misleading |
The max psi would be a Safe Working Condition.
Being a non oiled system there would be a safe rev limit for the blower, mainly due to the gears in there, it basicall depends on what size blower drive pulley you have on there and what the motor driving it will rev out to.
I still wouldn't even try to get it near the revs required to make 17 psi on that blower, I'd be stepping up to a t trim Vortech or even a procharger..
It says in the specs 17psi, discharge outlet 75mm (3"), so if the specs are right it can flow 17psi at large volumes too. No point having 17 psi with a very small discharge if by the time it hits a larger chamber the pressure will dissapate.
I reckon it flow the 17 psi needed to supply the 4ltr, even more, just that with that sort of boost, i'd be looking at a serious blower that can take it with ease and previous results rather than an up and comer. |
Could be right there schnoods, I did read on there somewhere that the raptor was rated at 850cfm max. I'll be looking at something that pumps 1100- 2000cfm max. they're more flexable to play with plus the air delivery is available at any given rpm. |
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schnoods
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| Posted: Sun Jan 13, 2008 2:40 pm Post subject: |
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thats why i bought an S trim blower.
Max rpm compressor shaft is 50, 000 rpm, max boost is 15 psi (safe), oil feed and return lines for longevity and the whole lot is servicable.
Asking for 17 psi out of a centri blower, you will need a Gilmer drive and perhaps a turnbucled brace for the blower shaft, so it doesn't flog out.
I am running a 8 rib pulley for the blower for my lazy 8psi, but the Larger raptor only runs on 6 or 7 rib pulley, which will mean slippage.
And only for a couple of hundred $$$ more a vortech is in reach, with more interchangable parts and blowers.. |
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Slick
Fordmods - Getting Side Ways
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| Posted: Sun Jan 13, 2008 9:07 pm Post subject: |
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Yea, but some of the guys would just settle for the rated 9psi setup from the manufacturer. besides, asking for more boost can be costly on a stock standard engine with factory components in a short period of time.
if you're a serious racer with the money to play with, the go for it. but personally I'll go with ProCharger or a roots. |
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RAPTOR_XR8
Fordmods Parts Gopher
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| Posted: Mon Jan 14, 2008 1:30 pm Post subject: |
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So if noone tries these Raptor superchargers than noone can say what they can and cant do, the raptor v is very efficent alot of people here are under rating these centrifuge superchargers, tho getting 17psi out of the raptor v would be a stretch as it is rated at 57.000 rpm. You would want the raptor R.
I am very happy with my raptor and it is a very good bang for buck mod, if you want to be a sheep then yeah dont try these guys and dont do something different, dont compare until you have tried.
I am currently running 7 psi with a full exhaust system( single 2.5'') and i absolutly slaughtered a cv8 monaro manual, i thought hed get me till i could build enough boost i didnt even stall it up. When i spoke to the dude in the monaro he gave me the thumbs up and said it sounded great.
Brad |
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Slick
Fordmods - Getting Side Ways
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| Posted: Mon Jan 14, 2008 1:53 pm Post subject: |
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| RAPTOR_XR8 wrote: | So if noone tries these Raptor superchargers than noone can say what they can and cant do, the raptor v is very efficent alot of people here are under rating these centrifuge superchargers, tho getting 17psi out of the raptor v would be a stretch as it is rated at 57.000 rpm. You would want the raptor R.
I am very happy with my raptor and it is a very good bang for buck mod, if you want to be a sheep then yeah dont try these guys and dont do something different, dont compare until you have tried.
I am currently running 7 psi with a full exhaust system( single 2.5'') and i absolutly slaughtered a cv8 monaro manual, i thought hed get me till i could build enough boost i didnt even stall it up. When i spoke to the dude in the monaro he gave me the thumbs up and said it sounded great.
Brad |
Yeah Brad, its more then sufficient for us poor C***. those raptors is probably all you need for a stock engine without getting carried away.
if you are serious about extensive surgery & greedy with boost or just like tinkering, then by all means waste your life savings on something bigger.
Hey Brad, got a intercooler going? air density is up the s**t this time of the year! lol |
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