I wanted to toss this out to the org to see what everyone thinks.
Anyone seen a dual charged car, boost and supercharged. I've got a m90 charger as well as a garret t3/t4 turbo, and im interested in dual charging my cavalier.
First off, anybody got an idea which odb1 engine would be the best for this. I was thinking a 2.3 quad4 modified with redone internals/heads etc... something that can deal with a good amount of horsepower.
Would it even work, be stable. I've seen other rides use the supercharger down low, and turbo up high, for an all around boost powerband.
I guess any ideas on what would work best from the experts is what im looking for.
Lets try for 400 horsepower, any ideas?
Josh F had a twincharged 2.4. not sure if it's back on the road again yet though. you might contact him
what you mean is twin charged. Josh F has a 2.4 with a m45 s/c and a turbo setup and he made 230whp i think it was on only 5psi.
We'll its possible to boost anything with a turbo and superchargers aren't much more complicated. the hardest part is your going to need HPtuners and some big injectors or go full standalone PCM. otherwise i've seen it done to varoius toyota MR2's and I heard some one was going to try a supercharged, twin turboed nissan 350z, It very possible to do IMO and a great way to make lots of power s/c for the idle to say 2,500 rpm and the turbo on up to redline!! so you have a full rpm spectrum on some sort of boost not to mention it sound cool a whinning s/c screaming though the revs as the sound of the turbo charger becomes even more overwhelming
'99 2.2 OHV w/3spd auto (work in progress)
http://www.cardomain.com/ride/2322134
some older aviation engines were twin-charged aswell.
HP Tuners | Garrett T3/T04B | 2.5" Charge Pipes | 2.5" Downpipe | 650 Injectors | HO Manifold | Addco front/rear | Motor Mounts | HKS SSQV | Spec stage 3 | AEM UEGO Wideband | Team Green LSD | FMIC | 2.3 cams | 2.3 oil pump swap | 280WHP | Now ECOTECED
This man
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"Youth in Asia"...I don't see anything wrong with that.
yea as said above i have twin charged my car... i only had it for 6 days after tuning and every thing was fully complete though before i was hit by a drunk driver, should be about 2-3 more weeks before i have it back on the road... well that engine in a new car any way... still dealing with insurance/lawyer stuff so i can not touch the car
it can be done, you will defiantly have to know what your doing as far as sizing the turbo for it to work properly, and HP tuners is a MUST! there is physically no way to make it work with out it really.. well ok you probably could but i would guess it would run like crap..
although there is probably 20+ pages on this site of people bashing the set up, it work amazingly well... absolulty 0 lag in power (full boost by 1700 rpm) and 5x better top end then i had with the supercharger its self.. I personally liked it and the few cars i had a go against in that week were very surprised at how well the car moved... defiantly looking forward to getting it back in the new car...
now to answer your questions.
i would say the VERY BEST engine that comes in a Jbody for this set up would be an ecotec cavy or sunfire with the GM supercharger and either do your own turbo kit (which is what i did) or a Hahn turbo kit that would be the ultimate set up for this...
yes it works and works very well... and it was just as stable as when my car was N/A and supercharged only... plus it could have just been a good tune done by the shop on it but i know i have seen alot of 2.4L's on here needing more then the 6.5-7psi of boost to make 230whp on a bone stock (internally) 2.4L engine... and for heating issues my car actually ran cooler then when i had nothing even on it even after pushing it hard.. and got amazing gas millage too ahah if that matters at all for you... i got 655kms to my very last tank of gas before i was hit as i was on a road trip when it happened
and last you said for the 400hp range... well i was actually going to shoot for that when i decided to ditch it as i am working on a MUCH bigger project now and using the sunfire as my daily all year round driver, but i don't see why you couldn't reach that, do a full engine build with say 8.5 even closer to 9 compression pistons and forged rods ect and even a port/polish of the s/c'er maybe it be the M45 or M62 (i think thats on the eco) i could see you hitting high 300's for sure thing is with this set up traction is a HUGE issue even at my 230whp i had traction issues although i did not have the best tires on the car...
The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
This pair made me chuckle:
Josh F wrote:you will defiantly have to know what your doing as far as sizing the turbo for it to work properly
Josh F wrote:an ecotec cavy or sunfire with the GM supercharger and ... a Hahn turbo kit that would be the ultimate set up for this
I could just imagine some moron going and putting the little 16g that comes with the Hahn kit on an M62 motor...what a gas.
Josh F wrote:and HP tuners is a MUST! there is physically no way to make it work with out it really..
everyone say it with me now...s-t-a-n-d-a-l-o-n-e
fortune cookie say:
better a delay than a disaster.
T3/T04E and M45 came out to 17.5 PSI at 3500 RPM, with the wastegate set for 7.35 PSI and getting its boost signal pre S/C rotors. Needless to say the S/C came off this morning.
Josh F wrote:mitdr774 wrote:T3/T04E and M45 came out to 17.5 PSI at 3500 RPM, with the wastegate set for 7.35 PSI and getting its boost signal pre S/C rotors. Needless to say the S/C came off this morning.
???
what dont you understand?
The car was twin charged.....that was to much, so the tiny m45 came off.
I was there, we finished off the kit Fri afternoon.
no what i do get is , are you trying to say its unstable / you cant control the boost level? or whats the deal here? like are you trying for 17psi or no?
The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
PM sent. I hope it explains things i an understandable manner. Maybe I did something wrong but I set it up the way i thought best for allowing both systems to function as designed.
ahh ok i understand now.. we set up ours slightly different... but yea i see what happend now
The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
if you're twin charging, you want your turbo's wastegate to be the boost controlling factor and you SHOULD use a large one. Instead of getting a boost signal from right at the turbo, you should be getting the source from the intake manifold (after the supercharger rotors) with a check valve to block vacuum. If you don't do this, your set boost will be multiplied where as if you do take the source from the intake manifold, the combined pressure will set the boost level to be made from the turbo, keeping it at the correct pressure.
That sounds to be where you messed up.
Cardomain|
Myspace
yea i set up mine exactly how i minion said.. and i see slightly less then what ever waste gate spring i have in... like my 10lbs spring in my waste gate gives me 7psi into the engine... have not figured this out as to why it does yet... plus i havent even used the car for 8 months now... but i just put in my dads boost controler from the GNX and turned it up to about 9psi and it ran perfect... no knock showing on my gauge, car ran nice and cool, i honistly could say it ran better then the day i bought it, and i bought it new...
The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
