JLP

Thanks for info, i'll let you guys know what snail i decide on and post some A/F and dyno charts when its all done.

birdmanmt

ok answer some q's for me.

what is your goal with this car? track, street, strip?

an rs2 will have a higher peak, IF you can get fuel for it. this is NOT easy on CIS. you're gonna pay twice on CIS what EFI would've cost and still not be able to tune on a whim.

i'd agree a cam is good, but not the 272. there are better options. getting something custom ground is a much better option. the 272 is an NA cam first and foremost.

k24 vs k26-- they flow the same CFM higher up. both choke above about 17-18 psi of boost on a 10v engine. the k24 will get you much better "street" driveability as it's boost threshold is about 800 rpm lower. but it's more of an on/off switch turbo. hits very hard. k26 has a much smoother/slower onslaught of power.

unless you go with an rs2 don't waste your time on a DP. and i'd say unless you go with EFI, don't waste your $$$ on trying for 300hp. it's gonna cost you a small fortune to have 2 bennett do it.

weird, my sig doesn't show up for me either...and i haven't seen yours yet!
87 5kTQ
EFI'd

nothing

The idea that the K24 has as good a top end as the K26 is a myth, perpetuated by two key facts: #1 - K26s are, on average, 5-10 years older than the K24s they are being compared to (old bearings - think about 120,000 rpm for a minute, that's where the top end is on these things.) #2 - Most comparisons of this type have been made on CIS equipped cars that can't take full advantage of the K26 top end anyway.

I'd be very interested to see any evidence to the contrary.

JLP

Thanks for all the info, i'll have to think about what turbo i'm going to chose.
But since I have already spent a small fortune on this car over the years, I think I need some more juice and if 2bennett says they can get me 300bhp I'll have to take their word for it and post the dyno chart when its done!
It's basically a street/highway slayer that needs more sauce.
I'll keep you guys posted, I live pretty close to 2bennett so i'll give them a stab at it!

PS I can see your sig, you must have "sig's" turned off in your profile!

birdmanmt

the k24 i speak of came in 89-91 audi 200's and the early 90's s-cars. so that's exactly the same era as the k26's i'm speaking of. they'd been around in europe since 1984. they are NOT ball bearing turbo's.

if you go to www.sjmautotechnik.com and read the compressor maps for each and draw in the lines for a 2.2 5 cyl 10v engine, you'll know exactly what i'm talking about.

i've seriously flogged two audi 5k's back to back that had exactly the same mods, but k24 and k26 turbo's. both cars were EFI'd and had SPIC and exhaust. they sure don't feel any different anywhere above 3500 rpm, except for the k24 coming on harder initially. still flat lines about the same point. and there was negligable difference in the 80-100 times.

any k24 from 84 thru 95.5 uses the same bearings/bushings in the center section as the k26 that are water cooled and oil lubed.

what advantage is there in the "top end" of a k26? the top end is about 18psi. so all your doing over that is heat soaking....

oh and now that i can see sigs....beautiful coupe! someday i'll have a pearl coupe to match my pearl 5k.

birdmanmt

yeah i must have that turned off. forgot about that!

let us know what's going on! i'd be very interested to hear just how they go about it. good luck!

you ever check out www.motorgeek.com?

skiddmark

Those 3spd auto's are know for being very weak. I doubt it will last very long with 300hp in stock form.

birdmanmt

if you do have an auto, it will be sent to it's death shortly.

JLP

You know it has been brought up before, my tranny has less than 30,000 gentle miles on it, and is a brand new direct from the factory replacement model , not a rebuild.
Ken from 2bennett has raced a 3 spd auto trannied car with a little more than 300bhp and never had any problems with it, and his was alot older with more miles than mine.Plus I won't be pounding it on a track like he did, just the random highway kill here and there.
I think 300bhp is probably the limit for the box, I guess we will see, also have any of you guys known someone who bought a spanking new tranny from the factory? Mine cost $2800 a couple of years ago........I'll keep you guys posted.

Thanks for the concern,

Tornado //S6

Max on a 20vt AAN is 280 or so, approaching the max of the K24's efficiency....they must really know what theyre doing, to get 300 out of a CIS'ed 10v with a k24. Keep us posted