john563

iTrader: (17)

I just want to know how many of you guys are at 500+ plus on a stock bottom end. Currently I'm heads/cam(N/A) and thinking about havivg a custom turbo fabbed for me. I'll run low boost til I get it forged. Right now I make 417rwhp 400rwt in an A4. I figure even on low boost I'll shoot for 500 at the wheels. Will i have to forge the bottom at those levels if going FI?
thanks
john

I do have Katech rod bolts if that helps.Heads are TSP stage 2.5 5.3 heads,ported fast 90/90 and a Tr224/112 cam

Hugger Z

iTrader: (4)

I am probably near pushing the limits on the stock stuff (508rwhp/513rwtq). But so far so good. Over 2,000 miles with the new power on the old engine. Many say ~550 is the limit for the stock stuff.

ChevyChad

iTrader: (50)

I went about 27000 miles at 489rwhp on my stock bottom end. Actually, the whole engine was entirely stock. Only had a P1SC at 7#. I'd probably still be at that if I didn't suck in water every time I drove in the rain

john563

iTrader: (17)

I know alot of the N20 guys push 550-600rwhp,but nitrous is not there all the time.Thats why I'm gonna shoot for 500rwhp on lOOOW boost til i can forge it. Thanks hugger Z for the info,anyone else?

WHPLASH

iTrader: (22)

500-500 rwhp is where things seem to go wrong. But you never know. There could of been an existing problem before. Also, depends on your tune.

There have been others on the board running 600+rwhp and no problems.

john563

iTrader: (17)

Chevychad If I can go roughly 30,000 before it goes I'll be happy.I have a beater to drive,so I wont drive it in the rain.I thought about going prcharger,but worried about water getting in.Is this common on procharger set ups?

geeteego

iTrader: (1)

Stay below 600...trust me. The motor will work OK, but you have zero room for detonation or any hiccups at or above 500-ish.

URSLOW2

iTrader: (5)

I just picked up my car last night Stock bottom end 521 Rwhp and 484 Tq with a safe tune only 80 miles driven so far wish me luck the car only has 13k to begin with tho

ChevyChad

iTrader: (50)

No, not really... Unless you have a mecham hood that funnels water right into the bypass valve from the heat extractor because you (for some reason) decided to mount the bypass valve on the plenum where mine is.

Here is the recipe for disaster:

this + rain + this = this

If I had a stock hood this would not have happened. It is not common at all for a procharger setup to suck in water.

Hugger Z

iTrader: (4)

I should mention that I did upgrade the valvesprings to LS6 valvesprings and put in TSP pushrods while I was in there. I also changed to a 160 deg thermostat and had the tuner readjust the fans for that. Everything else on the block/heads is stock. It has a safe street tune for 92 octane. I am currently running 93 but had the tuner plan for 92 in case I get stuck with that on a roadtrip. The big thing to make the engine survive is the tune. That seems to be where a lot of people have their problems. I had 90k on the engine when the turbo's were installed. We'll see how she does!

sevanseriesta

iTrader: (34)

I am going to be pushing 600 with my car when it gets tunned (i hope) on stock bottom end. I am running a front mount and meth on 13lbs of boost. I should have it done by next week so we will see. My motor has 61,000 on it with rod bolts only

Websy21

iTrader: (34)

Good luck, hope she stays together. I say for durability, 500rwhp and a good tune and as long as it was healthy before it should last for a long time

Carnutz

iTrader: (1)

There is a guy here with a 02 Camaro PTK kit on it, 76GTS, that made ~500 RWHP on a stock long block at 10lbs, (I rode with this guy and he is a NUT) he upped the boost to 12lbs and has been beating on it and so far so good, BUT it has a good tuner (Local NMCA turbo mustang racer) and is conservitive, IE ?12deg total timing?(dont quote me on that....)

CrazyChris

iTrader: (5)

600rwhp on a stock bottom end can and is being done. Make sure you have a good tune in it though.

ss1

iTrader: (32)

You'll be fine. Mine made 537rwhp on a hot day after three consecutive pulls. I've put 10k miles on it over the last couple of years, and I know the previous owner drove for quite a while with the same setup.

Tirefire

iTrader: (1)

525 rwhp/511rwtq so far so good...

WicketMike

iTrader: (13)

what AFR and timing is everybody running on the 500+ stock bottem ends ?

TchargedLS1TA

iTrader: (9)

Urban Legend is 52x HP with a P1SC and cam

70Stang

iTrader: (2)

We have two cars -

Supercharged GTO making 625rwhp
Turbo Z06 making 640rwhp (turned back down to 585)

They both run great on stock bottom ends....The tune is critical and you need to know that you are in a tricky position.

Mark98SS

iTrader: (1)

On my D1 setup at 505hp over a hundred passes now & still running strong. You can't get greedy with the boost & it'll live (for a while).