twin turbo

[c_brks]

ok i came up with a stupid idea after watching a video on you tube of a guy from minnesota that supposedly twind turboed an srt. i was wondering if anyone has eve heard of someone doing this and i would like to know what all it takes to do somthing like this.i am considering doing this to my 05 sr but i need more info on how to do this

[tarkus1]

DCR has a kit. Waste of money imo.

[c_brks]

ok who is DCR and why would this be a waste of time?

[tarkus1]

1. From what I remember from the dyno chart its range is 4500-8000 rpm. Either need a standalone or SCT flash to raise the rev limit.
2. It did make well over 500 hp so better be ready to build up the bottom end to handle that also.
3. 4000.00 + I think for the kit.

[c_brks]

yeah i did notice in the video the guy said that he was running a aem standalone system.
im not really looking at buying a kit what i would like to do is make it myself. i know it will probably be a little spendy. i just wanted to get some input from you guys on here and see what you think about doing somthing like this

[c_brks]

quick question what kind of benifits would i get from running a stage 3 WGA on my stock turbo?? i can get one that is already modified to fit the stock turbo but i am wondering if there are any benifits of using it since from what i have been hearing the stage on computer will just turn the boost back down

[MiniHemi148]

Quote:

Originally Posted by c_brks im not really looking at buying a kit what i would like to do is make it myself.

Well if you are a very talented and experienced fabricator and caster and machinist you could do it (assuming you have the facility to cast a custom cast iron manifold). I was looking into this when FullyBuilt Motorsports was talking about making a manifold. After a year of waiting I got fed up and bought a 50 trim T3/T4 kit and went big turbo. In theory the quick spool of a stock turbo and power of a big turbo sounds great, in the real world it's

[SAATR]

What's the practical HP limit on these motors, meaning what will the block/mains/crank take before splitting in two?

[kermit]

You don't need to cast a manifold, you can just make a tube one.

What kind of twin turbo setup is it, sequential or parallel? Parallel defiantly is a waste of time in my opinion. Just run one big turbo instead of two small ones.

[njshift]

Quote:

Originally Posted by SAATR What's the practical HP limit on these motors, meaning what will the block/mains/crank take before splitting in two?

I suppose mid to low 400whp is the practical limit of the stock block. However there are a few individuals who have hit the 550-600whp range on the stock block with a great tune.

[omni spirit]

i've seen were on guy got 660hp out of a stocker he tore it down after 5000 miles or so and saw the ring lands were bent upwards. he's said it still ran fine before the tare down.

[MiniHemi148]

Quote:

Originally Posted by kermit You don't need to cast a manifold, you can just make a tube one. What kind of twin turbo setup is it, sequential or parallel? Parallel defiantly is a waste of time in my opinion. Just run one big turbo instead of two small ones.

All of the SRT4 twin setups that I've seen use stock or modified stock turbos and you will need to cast a manifold to use those turbos, they were also in parallel. I was going to do this when FullyBuilt was talking about making a manifold, but got tired of waiting and went 50 trim.

[TurboDoctah]

You dont need to Cast a manifold... if your useing 2 stock turbos you just need to cut the manifold off one and cut a spot for it on your manifold and weld it up thats how one guy did it on a srt-4.. iv also need it done on a 2.2 basicly the same idea minus haveing to cut one turbo off a manifold lol... Personaly id just make \your own mani ifi was you... welding up a turbo header is a peace of cake.. will take some man hrs to do but its cheap and easy..... theres no need to make things over complicated. simple works just fine

[SHLB PT]

Hi; One of the men that goes to alot of shows on the East coast had twin turbos installed on his PT Crusier and from what they say puts out over 500 HP.THE car theme is The
Pirate. whole car is done not an SRT-4 but same motor. Just though I would let you know:

[BobsBlackACR]

I am working on a project that I already have the twin manifold made up for. I've seen the DCR version and personally I think the guy has never designed a header/collector before... if you look at his manifold the exducer bore to O2 'elbow' is merged with the second turbo. The only complaint I have about it is that the inclusion angle of the merge is about a ridiculous ~125 degree or so. Hard to describe, but essentially the exhaust flow of the second turbo is somewhat aimed AT the primary turbo's exhaust flow... not the greatest for airflow in my opinion.

The manifold I made up is essentially a similar design but it has a much better inclusion angle and is closer to a true mirror turbo setup. Mine will also end up being ported, ceramic coated and stress relieved (cryo treated) before I install it as it has seen a ton of heat from the welding that caused the #1 runner to be ~.265" off true when compared to runner #4!

At any rate, I am hoping to get a solution that will let me be in the mid 400's for power, and still have decent spool (maybe 3600-3800rpm?). Time will tell I guess. For those that are interested, I plan to get this installed either late this spring, or this summer, but I need to install my new clutch and fuel pump first.

Sorry for the long post!