[Shadofax]

Hi everyone, I have tried doing a little searching to see what Werks, DDM and Hahn offer for the 2.4. I've also done a little basic pullup of posts about turbos and SC's. Is there a post that asks about what people prefer with the aftermarket kits, turbo or SC?

The 2.4 didn't come from the factory ready to deal with forced induction, so I'm interested how reliability has been with aftermarket kits?

I ask from the perspective of buying a 2.4 and then deciding on either turbo or SC to get it into the 330HP arena (motor output, so maybe 295 RWHP?), stock auto tranny.

 

[Seltzinator]

Dumb question: What's wrong with the 2.0?

 

[2.4solstice06]

Nothings wrong with the 2.0l, but the 2.4 does have more displacement, and with forced induction, is just as lethal as the LNF.

Everyone I've seen with the supercharger from DDM has loved it, and the stage 3 would put you at your got. The install is straight forward and tech support is excellent. The downside is cost. Because there is not as many of them out there, there is less options than a turbo kit, and in assuming the actual unit itself is pretty pricey. From what I hear, the instant torque makes up for it though.

I went turbo because it was used and cheap. It dynoed at 255whp on 6 psi with very conservative tuning to preserve the stock clutch. It is reliable and the only problem I've had is an oil return line go because of ny own error (routed it right under wastegate). I'm sure the vendor kits are way more reliable than mine however as it was pieced together by a few people. I'm working on that though . It really all comes down to what you are looking for. As mentioned earlier, if you have yet to buy a solstice, the gxp is an easier platform to start with, but of you already have an N/A, it's worth it to add a little FI

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[appel1978]

I Have the stage 2 S/C and just love it. it has instant torque I installed it in my own garage. it took me about 6-8 hours. some might be quicker some people might take longer but it really is a doit your self project as long as you got the proper tools. you can tune the cars computer yourself in 10 min. Turbo unless you REALLY know your stuff id pay someone else to tune and probably install. And I love the super chargers sound its so distinctive and unique. sounds like a jet engine spooling up. definitely turns heads. Im looking to upgrade in near future to stage 3 but mine has plenty of power though. I am gonna be a little more favored for s/c though just because I have only owned a s/c and not a turbo. Turbos are a great way to go also Im not saying anything bad about them. I don't know about turbos but the mpg for my car which has only a supercharger, nothing else done to it get about 19-20 city.....only when im not stomping on it but very surprisingly when I went to tampa and back i averaged 30 mpg highway with cruise set at 75mph

 

[ChopTop]

Good question. I've been wondering about 2.4 SC vs V8. SC would be cheaper but no way will it sound like a V8. Don't want to turn this into a V8 thread, just saying I'm hoping to upgrade the OEM power someday.

I've seen a couple YT 2.4 SC vids, but would like to hear a better sound clip of SCs.

 

[cooper1340s]

My 2.4 was DDM stage III supercharged and it ran great for several years, but then I decided to upgrade the power. Now have cammed LS3 and it is unbelievable. The sound, torque and performance can't be beat and still get high 20's cruising on highway. Driving it is so much fun, but you do have to keep your attention focused or it WILL hurt you!

 

[Heliosky77]

Still loving my DDM Stage 3! Almost 80k miles on the car. Still going strong!

 

[Sting Ya]

I recently finished installing a Hann stage 11 turbo on my car and can't say enough about the kit or support I received from Hann. I looked at superchargers and other turbo kits and after a lot of research and talking to people who have Hann kits including Tony of ASAP Grafixics I went with them .For well under 4 grand I got the kit with all the bells and whistles ceramic coating ,power steering reservoir relocation kit, and a heat shield , all the components are first classThe install was straight forward and took a weekend with help from a friend who is a drag racer.I love the way the car runs as it really wakes up the 2.4 motor and a plus is that I'm getting 30 mpg if I try to drive it with some restraint.Bottom line as far as I'm concerned it was the best upgrade I have made to my car so far.

 

[Neo-Sky]

Ive got a Stage III hahn kit in my 2.4 with 110k miles and its holding up well. I give it hell every time I drive it and haven't had any problems other than an oil leak from the return lines. Boost comes on real fast too.

 

[King-Oka]

I have a DDM SC Stage 3. I've been a strong supporter of FI 2.4's here for years, and there are threads comparing TC and SC out there.

That said, if I was starting fresh today, with the now depreciated cars available, I would go with a factory Turbo. The reason is that the 2.0 is direct injected and the 2.4 is port injected. By direct injecting (atomized fuel into the cyls) more HP is attainable. The 2.4 has more displacement, but the DI makes up for it. My stage 3 might make 300HP, and there are many 2.0's doing more. Also the GXP's have suspension enhancements worth considering.

I can see myself doing an LS3 someday, if I keep this car . Equally possible is the purchase of a Sky Turbo, or buying another brand of HotRod with a V8.

 

[TX08manualGXP]

Dumb question: What's wrong with the 2.0?

How is that a dumb question Seltzer? If you have an NA, and want more power, those are your only 2 options other then changing engines.

I shopped around and almost went with the kit from Hahn. I heard great things about them and they had a package deal for like 3199. both have pros and cons but the TC is about 2 grand cheaper than the SC. I had the money in hand and was seriously getting one but ended up buying a GXP. I'd think the auto trans would be OK. if it were a standard, I think the trans are different but the GXP has a heavier clutch. And you'd need a stronger backbone for sure.

 

[rob the elder]

Shadow,
at our altitude, turbo lag is more noticable than at lower elevations.

Nightamer has had a Stage 3 SC in his car for years and I have driven with him on many occasions. His car is quicker at altitude and at lower RPMs than my 2.0. I can match him as RPMs climb and given high speeds, can reel him in but the SC has much more excess boost when the turbo is sucking wind looking for boost.

The SC also makes a wonderful noise! Very nice.

Based on my experience, if / when I get a coupe to play with I will go with the SC kit.:grouphug:

 

[RotaryPiston]

Well why are you asking this question?

From your signature, you have a GXP Solstice Coupe. What are your plans? New solstice maybe?

Maybe someone will do what I thought would be neat. S/C LNF motor....

 

[King-Oka]

Wonder how many people out there are saying " I coulda had a V8"

 

[TX08manualGXP]

Oh, my bad. I thought he has a 2.4. Yeah, i wouldn't change from TC to SC. If you are looking for an upgrade, I'd upgrade the turbo system.

 

[brap]

Well why are you asking this question?

From your signature, you have a GXP Solstice Coupe. What are your plans? New solstice maybe?

This^

But my .2

SC setups are snappy, fun, sound amazing and feel fast. You get punched back in your seat because the torque is instant. Though, I think it is highly unlikely you will get ~300whp with a SC. The DDM S3 kit is rated for ~270whp+. To squeak out a little more is likely going to be difficult. I think you'd need to run e85, 80lb injectors, and exhaust mods on top of a ~$5600 setup to hit your mark.

You will easily get 270whp+ with a lot less $/mods if you go turbo.

 

[King-Oka]

Well why are you asking this question?

From your signature, you have a GXP Solstice Coupe. What are your plans? New solstice maybe?

Maybe someone will do what I thought would be neat. S/C LNF motor....

Read it again Pal

"I ask from the perspective of buying a 2.4 and then deciding on either turbo or SC "

 

[rob the elder]

From his earlier post, he is looking at his options for increasing the output of a second car. He is looking at picking up a 2.4 car and boosting it.

 

[Heliosky77]

This^

But my .2

SC setups are snappy, fun, sound amazing and feel fast. You get punched back in your seat because the torque is instant. Though, I think it is highly unlikely you will get ~300whp with a SC. The DDM S3 kit is rated for ~270whp+. To squeak out a little more is likely going to be difficult. I think you'd need to run e85, 80lb injectors, and exhaust mods on top of a ~$5600 setup to hit your mark.

You will easily get 270whp+ with a lot less $/mods if you go turbo.

Oh, you can get over 300rwhp with DDM's stage 3. You have to have your head ported and bench flow tested to do it, but it is possible. :thumbs:

 

[rob the elder]

The stage 3 on an otherwise stock 2.4 brings the power up to at least par with a 2.0 car. Its a very nicely performing solution.