View Full Version : Supercharge or Twin turbo???????
lightningdav
17-02-2006, 06:44 AM
Hi all,
I was wondering if you had $15,000, what you you do to your car?
a) a supercharger with all the little upgrades off about $15,000 OR
b) a twin turbo complete setup of about $15,000
magna-ificient
17-02-2006, 06:59 AM
id go the super charger i spose....
el3ment
17-02-2006, 07:29 AM
Yep. same here. SUpercharger. But one that can be turned off for daily driving, and when the power is needed for a race/drag, flick the switch, and on it is :D
needabetacar
17-02-2006, 07:40 AM
Hi all,
I was wondering if you had $15,000, what you you do to your car?
a) a supercharger with all the little upgrades off about $15,000 OR
b) a twin turbo complete setup of about $15,000
Depending on which car/motor you would be doing it to and what you wanted it for !
both systems you can "turn off"
The twin turbo would be more versitile and would generaly generate more horsre power
The supercharger would be more user friendly and deliver a smoother power range so at the end of the day it depends what you wanted it for !
Nic
Phonic
17-02-2006, 08:08 AM
Currentlly the only tried and tested supercharger setup for the Magnas is the Sprintex kit. This kit is not switchable (doesn't have a clutch pulley). The advantage of this sytem is that it's ADR complient(sp?).
Although if I was going to go through the trouble of engineering a setup I'd go for twin turbo. A well setup and tuned twin system would have a nice spread of torque (use two smaller turbos) and a nice top end. Using somthing like a Turbosmart E-Boost you could set it up for good street drivabillity. Plus upgrading to larger turbos down the track would be fairlly easy. Of course I'd only do this if that 15 grand included stronger internals. :P
lightningdav
17-02-2006, 08:35 AM
I have asked this question because at the moment I can put in a supercharger, but I do not want to regret it in the long run. If I save for a few more months I can get myself a full 28/30 gt garrett twin turbo with a rebilt engine for $18,000 to $20,000.
It is hard to decide what to do?
If I follow my friends, they are telling me that a twin turbo would be better because you are also rebuilding the engine, so the chances of something going wrong is very slim. Jap car go well with turbos.
Dpack_1
17-02-2006, 08:48 AM
For 15k i'd do neither, i'd get a GM crate motor dropped in there, something like a 350. Convert it to RWD with a turbo 400 transmission. That'll probably cost about the same and you'd have just as much if not more horsepower then either the TT or SC route but could still somewhere down the road add a blower to it and pull well over 500hp with ease. And you'd have A LOT less to go wrong that way too.
tommo
17-02-2006, 09:19 AM
If you're getting the engine rebuilt as well then I'd definately go with the TT setup. With the twin system you'd have hardly any lag, the potential to upgrade in the future(if you ever wanted to :D ) and they are using energy that would otherwise be wasted. Although if I was going to do a convertion (definately not happening for a while :cry: ) I'd go with a strengthened auto, no loss of boost when changing gears and faster gear changes :thumbsup:
gremlin
17-02-2006, 09:27 AM
For 15k i'd do neither, i'd get a GM crate motor dropped in there, something like a 350. Convert it to RWD with a turbo 400 transmission. That'll probably cost about the same and you'd have just as much if not more horsepower then either the TT or SC route but could still somewhere down the road add a blower to it and pull well over 500hp with ease. And you'd have A LOT less to go wrong that way too.
there is no way you could do that job for $15k... way way to much custom to work.. would cost double that easily i reckon
and as for things going wrong.. there would be TONNES more things to go wrong with a totally custom job then either a RPW TT setup or Sprintex Supercharger..
actually doing the conversion you suggested would be a nightmare.. whereas the other two options have been done a few times, if not more, so there is no real guess work needed...
also, according to your profile you've got an auto.. i wouldnt be trying to pump to much power through that... personally, id sell the magna for like $10k, take the $25 you now have and go buy an XR6T.. far less headaches and tonnes more potential...
Asylum
17-02-2006, 09:29 AM
the supercharger kit is much cheaper, but has its limits. ie, no intercooler.
for that kind of money, you can get from the RPW catalouge :
stage 3 turbo package (can't see the twin turbo anywhere) $8500 plus GST
then lots of internal work! which should be safe to push the power up t o 300kW atw!
lightningdav
17-02-2006, 09:34 AM
Thanks guys! From what I have read this has really given me an insite in what I will be doing in the coming months. That is a twin Turbo.
needabetacar
17-02-2006, 09:37 AM
there is no way you could do that job for $15k... way way to much custom to work.. would cost double that easily i reckon
and as for things going wrong.. there would be TONNES more things to go wrong with a totally custom job then either a RPW TT setup or Sprintex Supercharger..
actually doing the conversion you suggested would be a nightmare.. whereas the other two options have been done a few times, if not more, so there is no real guess work needed...
also, according to your profile you've got an auto.. i wouldnt be trying to pump to much power through that... personally, id sell the magna for like $10k, take the $25 you now have and go buy an XR6T.. far less headaches and tonnes more potential...
Has anyone considdered that we are all asking to much of the magna... a front wheel drive car that really, it was not designed to do what you are asking it to do ?
With motors requiring modifications to support extra horse power from turbos and supercharges and transmissions being streached to the absolute limit from the said power increase...
has any one thought to purchase a car that is designed to do what you want ie... a porsha, ferrari, evo8, scooby doo, nissan skyline, holden or falcon v8 or turbo 6 ?
Just a thought....
nic
creepingdeath
26-04-2006, 05:27 PM
Has anyone considdered that we are all asking to much of the magna... a front wheel drive car that really, it was not designed to do what you are asking it to do ?
With motors requiring modifications to support extra horse power from turbos and supercharges and transmissions being streached to the absolute limit from the said power increase...
has any one thought to purchase a car that is designed to do what you want ie... a porsha, ferrari, evo8, scooby doo, nissan skyline, holden or falcon v8 or turbo 6 ?
Just a thought....
nic
I kinda agree with what you have said, but there is something to be said for the Magna. Most people successfully installing mods on their Magnas, shows how flexible and versatile they really are. I'd much rather mod my Magna than a stock Commodore or Falcon as I know my Magna is better built. True... if you want a real speed and handling and can afford it, buy an Evo 8/9. ( Porche's are slow and uncomforable )
Poita
26-04-2006, 09:45 PM
Yeah you could buy a car like that... but there wouldnt be the satisfaction of knowing you've built something pretty unique and can still have loads of fun! I mean why do it at all... the speed limit is 60kph 85% of the time... Cause its fun!! Its a hobby! (albiet expensive!!)
I'd go a single biggish turbo. Sure you'll have lag, but if you keep the revs under 3k it'll behave like a daily driver and wont drink nearly as much. When you wanna have your fun you can spin it out to redline and enjoy the music of a turbo spooling its ass off and the sudden kick in teh back. You're going to need some forged internals but thats necessary with anything really, and the other obvious things like head work but if you have 15k to spend they're small fish.
cthulhu
27-04-2006, 09:01 AM
$7500 on the sprintex supercharger install, the rest on retro fitting a water to air intercooler, new cams, head work, upgraded clutch if manual, etc. That'd make for a pretty awesome car.
AlphA
27-04-2006, 09:38 AM
Id sell my magna for $10k and buy a Nissan R33 Skyline again. Probably do what some of my mates have done.. Spend $16k on the car and the other $9000 on modifications to the already performace designed vehicle.
If I was forced to spend the money on my Magna I would get the RPW Twin Turbo system however Im not a massive fan of spending that much money on a car that was never designed for it. Not saying all magnas but mine is FWD, Automatic and I just couldnt do it.
VRADA
27-04-2006, 09:52 AM
$7500 on the sprintex supercharger install, the rest on retro fitting a water to air intercooler, new cams, head work, upgraded clutch if manual, etc. That'd make for a pretty awesome car.
Sounds good to me, also sounds like my current plans.... Just gotta speak with the bank about extending the old credit limit :)
I think this is the best option for an auto, need the torque over horses. That said though, decompressed pistons with specific cams are just a bonus ontop of the 230kw/450nm...
valaxy66
27-04-2006, 10:21 AM
either option is good, either way i reckon you should look up about upgrading the gear box
wtp omen
27-04-2006, 12:00 PM
speaking of upgrading gearboxes....
has anyone put a six speed gearbox in a magna? are there any that will fit?
Matthius
27-04-2006, 12:14 PM
Sounds good to me, also sounds like my current plans.... Just gotta speak with the bank about extending the old credit limit :)
I think this is the best option for an auto, need the torque over horses. That said though, decompressed pistons with specific cams are just a bonus ontop of the 230kw/450nm...
If your running an eaton/screw type supercharger then there isn't much need to lower your compression, the magnas only run 9:1 stock and 7psi of boost isn't going to push their combustion overly, better bet if you were going to change pistons would be same compression but forged.
If you were minded to get lower comp pistons then you could as Cthulu said get a nice intercooler, some heaps bigger lift slightly bigger duration cams allowing you to rev out a bit more, say producing power to 6500 instead of ~5500 and of course assuming the s/c has the flow capabilities that last 1000rpm would increase your boost incrementally :)
Matthius
VRADA
27-04-2006, 09:52 PM
If your running an eaton/screw type supercharger then there isn't much need to lower your compression, the magnas only run 9:1 stock and 7psi of boost isn't going to push their combustion overly, better bet if you were going to change pistons would be same compression but forged.
If you were minded to get lower comp pistons then you could as Cthulu said get a nice intercooler, some heaps bigger lift slightly bigger duration cams allowing you to rev out a bit more, say producing power to 6500 instead of ~5500 and of course assuming the s/c has the flow capabilities that last 1000rpm would increase your boost incrementally :)
Matthius
Have looked into intercooling, have been told around the $2000 mark from people at sprintex. That said im still yet to first supercharge. I think that pistons and cams would have to be considered before supercharging. intercooling would be an after if needed sorta thing.
yeah 9:1 would be pretty good.
forging is when u start talking bigger money, and as happy as i am to put myself in debt for like 3 years over a magna, 6-10 years is more going to prison over a magna.
Phonic
28-04-2006, 06:55 AM
Have looked into intercooling, have been told around the $2000 mark from people at sprintex. That said im still yet to first supercharge. I think that pistons and cams would have to be considered before supercharging. intercooling would be an after if needed sorta thing.
yeah 9:1 would be pretty good.
forging is when u start talking bigger money, and as happy as i am to put myself in debt for like 3 years over a magna, 6-10 years is more going to prison over a magna.
If your going to be intercooling the supercharger setup (if you go down that road), forged internals are even less needed (but would be nice to allow a little more agressive tunning). The cooler intake charge (along with a decent ECU and tunning) should prove to be fairly reliable. :)
VRADA
28-04-2006, 07:27 AM
If your going to be intercooling the supercharger setup (if you go down that road), forged internals are even less needed (but would be nice to allow a little more agressive tunning). The cooler intake charge (along with a decent ECU and tunning) should prove to be fairly reliable. :)
Yeah well, first we'll, first ill get the supercharger with some cams. then we can run from there with pistons and intercooling etc....
"(along with a decent ECU and tuning)" Still not sure as to whether ill need to run the sprintex supplied or if something like a greddy can handle it all.
cthulhu
28-04-2006, 07:43 AM
If you're going to go with new cams you'll need something reprogrammable.. the Sprintex ECU seems to be all secret squirrel stuff, and it sounds like they don't do any custom tuning as part of their install. You might need to look at something else.
Ice_Magik
28-04-2006, 08:52 AM
i'd twin turbo a supercharged magna !
benny_TE
28-04-2006, 01:13 PM
really? thats great. But i think the thread is whether to supercharge OR twin turbo, as the originator of this thread has stated he doesn't want to go into debt for the rest of his life, so ummm.... yeah.
Personally i would go the twin-turbo route, as it has proven itself reliable and you with the twin turbo's you would still have quite a linear torque spread (not peaky like a big single).
Also, the sprintex kit , as reliable as it is, is limited in tuning. I guess it really depends if you will be happy with 250+ kw, or 300+kw.
If the latter is in your preference, i'd go twin-turbo.
However, if you want a warranty and don't want to go through a set of front tyres every 6months then i would go the sprintex.
Either way im sure you'll be very happy with results and will have a mean magna capable of pulverising most others on the road:badgrin:
Phonic
28-04-2006, 01:34 PM
Either way im sure you'll be very happy with results and will have a mean magna capable of pulverising most others on the road:badgrin:
Yes, unless those other cars on the road also have turbo or supercharger kitslol
Matthius
28-04-2006, 02:33 PM
really? thats great. But i think the thread is whether to supercharge OR twin turbo, as the originator of this thread has stated he doesn't want to go into debt for the rest of his life, so ummm.... yeah.
The originator of the thread now owns a chrysler 300c, so his question is a bit out of date now :P most of these latest threads were in reply to Vrada and someone else who had some queries/ideas.
Matthius
VRADA
28-04-2006, 06:57 PM
If you're going to go with new cams you'll need something reprogrammable.. the Sprintex ECU seems to be all secret squirrel stuff, and it sounds like they don't do any custom tuning as part of their install. You might need to look at something else.
Yeah have thought about all that, still early stages for me.
Was going to go the NA route (spoke alot with you about this) but certain members of AMC (Jasons VRX) have pointed me more towards the torque than the horses.
after comparing prices and hassles, i think a custom supercharged verada would work out better for me.
*need the torque cause my cars fat and auto :rant:
VRADA
28-04-2006, 06:57 PM
The originator of the thread now owns a chrysler 300c, so his question is a bit out of date now :P most of these latest threads were in reply to Vrada and someone else who had some queries/ideas.
Matthius
Didnt mean to steal the thread :badgrin:
But if he wants to change codes then i dont feel so bad =) haha
cheers
GoTRICE
29-04-2006, 09:25 AM
i'd go twin turbo as i would want at least 250kw atw and i would prefer that power to be higher in the rev range, plus top end power of the tt would match well with the torquey 3.5L v6, i thik itd be easier to get it off the line, but at the end of the day i don't want a forced induction fwd... it just doesnt make sense to me.
VRADA
29-04-2006, 10:21 AM
i'd go twin turbo as i would want at least 250kw atw and i would prefer that power to be higher in the rev range, plus top end power of the tt would match well with the torquey 3.5L v6, i thik itd be easier to get it off the line, but at the end of the day i don't want a forced induction fwd... it just doesnt make sense to me.
problem i see with that theory is that you have 250fwkw kicking in at say 3000-3500rpm, which now means traction issues up top. that much power coming into the fronts means that its pretty much lost.
with the supercharger its constant so its better for my city sorta driving, remember i dont live at the drag strip, not just about 1/4 mile times.
the top end power with the torquey 3.5L idea im against due to being auto. Car lacks acceleration down low, especially in 2nd/3rd/4th.
The car would just become a dyno warrior.
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