I've seen a few TII manifolds and turbos bolted on to N/As, and I was wondering if a complete HKS upgrade kit (turbo, manifold and all) would fit on an S4 N/A or if it could be made to fit on. Also, other than an intercooler and a custom pipe to run an air cleaner to the turbo, what kind of equipment would be needed for the conversion?

 

It wouldn't bolt right up, correctly anyways. As of right now there is not a turbo kit available for a N/A FC.

The kit might have clearance issues with the fenderwells as well. You would also need a fuel pump, larger injectors, fpr, and a way to control the fuel (safc), an intercooler, custom lines to supply the turbo with oil and coolant, Ect....

alot of work.

Atkins rotary is working on a supercharger kit that keeps the car fuel injected right now.

Another well known FC supplier is developing a N/A FC turbo kit right now. Search and you will find a thread on it.

 

Well yeah, I forgot to mention. WOuld 1600cc secondaries and a 255lph ND pump serve okay for the fuel needs? I already have an S-AFC II, so I think I would be okay for A/F ratio tuning.

That Atkins kit is AMAZINGLY expensive, but I'd consider it, depending oh how much money i can rake in over the summer. Do you think it would be a good idea to run larger injectors and a higher-flow fuel pump on that S/C kit? Also, would I be able to make much more HP than the quoted/projected 178rwhp they plan on making?

And yes, I do know about Dave's turbo kit, it sounds very interesting.

 

Dude... It CAN... but you're looking at one MAJOR pain in the ***...

the simplest option is to do a TII swap (ecu, engine, turbo, Hood, Trans.. All that stuff

Your Best Option is to get a rebuilt turbo motor, a turbo kit a boost controller and an aftermarket ECU..

I weighed the options of this myself when i had a cherry 89 GTU... I finally sold it and bought a TII with a high mileage motor and rebuilt it, replaceed the ECU with a Haltech and now an in the proceess of designing a FMIC and getting a bigger turbo. Looking back... this was MUCH easier.

My advice is to keep your current car as a daily driver and buy a TII with a blown motor and start a project.. you'll have less headaches in the long run

 

The 255 pump SHOULD do the trick. would depend on how much boost your running. the 1600cc secondaries would not. the jump from 460cc primaries to 1600cc secondaries is too big. the AFC is not capable of smoothing it out. Also, I don't think the 460's could provide enough fuel before 3800rpms. 720cc primaries, and 1000cc secondaries would be the way to go.

Have they announced a price on it atkins kit yet? I haven't looked into it lately. I didn't know that it would be makeing 178 whp either. Everything needed for the atkins kit should be included in it. So I would assume pump and injectors would be included.

The HKS kit is probably capable of well over 300 whp. But isn't the HKS kit $3000 itself anyways?

 

This is 100% true.

 

Just checked:

Atkins FI S/C kit: $3800ish, 176whp on stock injectors. Capable of 260whp with upgrade fuel system.

That is alot of money. I was expecting 2200-2500 range. That sux.

 

I believe fc3s.org is developing a NA->turbo kit. Check out their site.

 

Alright, I think I'll probably go supercharged. The reason I think the Atkins kit is estimated at such a high price is because I think they're going for a CARB exemption order, so that would be a plus for me, as I live in California. Also, I wouldn't imagine so many issues would come up as it comes to cooling problems, so until I start getting into serious, track-day racing, I think I could keep the stock radiator. Also, since I have 9.4:1 rotors, I wouldn't be able to make huge boost without swapping the rotor assembly out. 260 on a supercharger seems quite reasonable and seems like it would be more than enough power.

 

http://www.hardcore-performance.com/tmazda.asp that is a link to a company that makes a turbo kit for the N/A got the link from the second gen FAQ

 

Aside from the fact that an 8 year old made that website, the kit really doesn't look too bad.

 

that hardcore kit is nassssty - there a very simple reason why nobody bought it (it's crap). lets say you pieced something like that together and the car ran...cool, good cheap DIY. but I wouln't pay money for that "kit". It's no longer offered as far as I know...the only one out there is that one on the website for the owners car. yuck

 

There's a really easy to tell if the HKS kit will fit an NA: measure. Simply measure the distance between the inner flange and the part (probably the compressor) that sticks out the most. Now measure the depth of the stock NA lower intake...If it is thicker, then you will need to space the manifold out from the block. Note that this can cause issues with the fender.

 

don't go putting a supercharger and or turbo on a NA that has high mileage and expect it to run long. Someone already advised that the swap is the best way to go or buy a t2. That type of money for 260hp is a joke. Also the NA tranny and clutch won't hold 260 so you are basically trashing your entire NA drivetrain.

 

It doesn't fit.
It'll hit the lower intake manifold on the NA.


-Ted

 

I wouldn't buy anything from them, it just seems too unprofessional. I have read a lot of things about the way they test the kits and it just sounds like they suck. I wouldn't take a chance, especially with that kind of money! That's just me though...

 

Okay, now I'm thinking of doing a TII swap. The Atkins kit is expensive as hell, but I'm thinking that they might be getting a CARB E.O. number; that's the only explanation I can see for the high price. I know the N/A tranny and clutch won't hold 260, I would have to get a higher friction disc and a stronger pressure plate.

On the TII swap, what will I need outside of an engine, transmission, and ECU? Also, how much would the conversion cost in total? I have an '86 base model. I was also wondering if I could go to a referee station and still pass smog with the TII swap.

 

I thought so.