I'm looking to do a turbo upgrade. I would like to put out around 550 at the wheels. My car will be used mainly as a street car. I'd like to know the difference between these two setups. I've been doing some research and what I gather is that the K16's will spool a bit faster, but the k24/18g's have better top end power. Is this correct, and how big is the difference? Thanks.

 

your correct... it will be hard to get 550whp on k16 billets... ( nor 16gs). on 93 octane. you will need at least a 5 bar, maybe injectors, a clutch, good after market WGs, intercoolers, open exhaust, intake to turbos... k16s are easy to get but k24s are not... so your options are limited... a good tune make s a big difference as well... I do have clients making 560all wheel mustang dyno on 91 with meth.... OEM ICs..
markski

 

I went through the exact same scenario over the winter. I finally chose the 18gs because I wanted to run less boost but still get the same (maybe better? Haven't dynod) results on 93.

For what it's worth, I can also tell you I don't drive around wishing my 18gs spooled faster

 

Purchased some k24/18gs from the for sale section.

 

K24/18g's aren't too bad, I'd love to move the spool about 500RPM's to the left..

 

Keep us updated on your progress/results.

 

subscribed!!!

 

Then you would be at a stock k16 point... we want it all but lets be realistic...
A K24 based hybrid will beat a k16 compressor wheel upgrade... not sure what there is to discuss..

 

Neil,

The p800 is alpha 28's? or 3071's?

 

I'm guessing I can fish around your site but, have you tried 3071's too? What seems to be the HP/tq shift to the right between the A28's, 71's and or the 76's? Sorry for the OT!

 

[QUOTE=Neil Switzer;3567863]Probably better off asking me anyways, new site is not done yet. QUOTE]

Neil, thanks. I'll probably give you a call to discuss. Sorry to the OP I didn't mean to go off topic.

 

850rwhp on Alpha30s will be extremely tough on a 3.6L. on a 3.8L yup.

i run 2.0 bar through newest billet A3076 with FP covers and make 800rwhp. internal gates from Tial dont allow me more boost. i also run E85, so I suppose there could be another 20-30 from C16.

my A3076 also spool as fast as My FVD Race k24s did and just as fast as K16 car with tune/exhaust on same dyno. A28s spool insanely fast.

 

997tt engine has superior heads ( my heads flow more then 997 heads), and superior intake manifold (which i also have on my car) so a 996tt with stock heads, intake manifold won't match the 997tt. at 800whp power level ported heads and intake mani are worth good power.

i do agree with you that the small hotsides are definetly the bottleneck along with the internal gates. heck external gates would help alot.

Pair of these came in on Tuesday

 

Buy a set of intake pipes.

 

I'd like to see it, at 1.1 bar on cali 91 octane, I'm at around 525WHP. I've seen threads saying a 75MM TB and intake plenum shifts the RPM to the left also. Typically as part of a group buy thread, I'm not into the hype. Often hard to sort out what's hype on these forums and whats not, also seems as confusing as to whether or not I would see the benefit at my power level.

My best move may be methanol injection and intake piping, then re-assess from there. I assume I would be able to turn to the boost up to 1.3/1.4 bar and pickup 60WHP or so ..