confUsed

So I'm building this d16a6 with vitara's and I-beams. It'll probably end up between 8 and 8.5ish:1 compression when I'm done. This engine will be for road race, not drag race, so anything above ~250-270 whp will probably just be good for burning up my front tires, so thats what I'm aiming for, with a wide as possible powerband. The current turbo is a t3/t04e with a .48 stage1 exhaust side and a 46 trim compressor wheel (setup is on the bottom of this thread https://www.homemadeturbo.com/forum/...095#msg1214095 ). It spools around 3500 on my z6, so I think it should do the job pretty good.

Now I'm readin that the stock d16a6 valve springs takes a lot of beating, so slapping a cam in there and reving the **** out of it is supposedly ok, so it sounds like something I want. I've never driven a d16 with an aftermarket cam before, so I dont know how the powerband is affected. Is it just moved up, or does it get bigger? And if the turbo can deliver, when does a stock a6 cam stop making power?

And where can I get a cheap cam that doesnt require me to send them a core? I cant ship a cam from norway without getting raped at the post office.

Any ideas of how to build a 250whp d16a6 with a big as possible powerband that will last through 15-20 minutes sessions are welcome, actually. My head hurts now, I'm having trouble deciding what to do



Soemthing to look at while you're typing

lock-pop!

i had a d15b2 with the bullfrogg 2624, converted to mpfi. that ****** screamed all the way to 8k with a decent amount of pull.... i was pretty suprised with it.

confUsed

Was that with stock d15 springs? If it was, thats pretty awesome, d16 springs should be even "safer"...

Anyone know where the stock a6 cam stops making power? Cant find stock cam dyno charts anywhere, in fact I cant find a single a6 graph...

lock-pop!

yes sir... i honestly felt pretty damn good up at that powerband.... even better with nitrous

Guy-Fast

a6 springs on a smaller regrind=rev to 10k and enjoy every second of it



stock camshaft peak power is based upon stock motor etc



b16a with itr cams stock=8200 peak
b16a with itr cams+port work+70mm tb+compression=9500


Look att the wheeze built by jeff frank 9000 rpm wheezzzzeeeeeee rips on stock 20 year old a6 springs. a6 springs=beefffffyyyy

the 13th round

delta 272 rips hard but i couldnt get the ------- idle antwhere decent on my a6 vitara build.


put stocker back in, idled fine but i missed the 272 everytime i drove it.

confUsed

Great info! Thanks! I saw the thread a couple of times when I was searching around. Dont know why I didnt click it, but it was a good read for sure

Still need to figure out a way to get a core over to delta cams, though. Do you still have that delta cam laying around, 13th?

the 13th round

nah gave it to a friend for his carbed d15, he helps me out alot.


snag a cam off a site and mail it to delta, they are cool guys over there.

CIVIC.93

there is a delta right down the street fron my work I will see if I could find a cam

the 13th round

hmmm, well delta cam is one place. so "a" delta would be "the" delta in tacoma washington.