FYRARMS

No, that will be a requirement! Car will most likely be twin-turboed. The TTI kit is tempting, but we will probably build a kit from scratch.

Pretty big. See avatar of former money pit.

KCvetteowner

What do you consider hot?? My 416ci LS3 was installed Aug of 2008 and using the stock radiator and a LS3 water pump, I never see coolant temps over 210 degrees. My oil will get up in the 230s so I've been thinking about adding an oil cooler. I am using my old LS6 batwing pan, windage tray and pickup tube along with a Melling HP oil pump. Thx.

AU N EGL

OK you KNOW.


Coolant temps in the 205-210 range 220* is pushing it for coolant. and with oil under 250*

The cooler the oil the cooler the block the more HP

AU N EGL

Its NOT the HP that makes the car go fast it is the Setup and driver that makes the car go fast

Stock HP LS6 with race set up C5Z takes pole position at Mosport World Challenge
http://forums.corvetteforum.com/auto...enge-race.html

dieseldave56

When faced with an engine swap on how far can I go and then try to upgrade the drive train, suspension to handle the impending performance increase?

Then reality of the budget sets the limits.

hobbesnmina2001

Good points and info!

AU N EGL

Good Questions.

I run an LS6 with a 224/224 cam and other bolt ons.

low 400 RWHP and RWTQ. Use the GM T1 Suspension.

stock Clutch and fly wheel, On second of each now.

The T1 suspension can handle quite a bit. Going to Penske T1 Coil overs is an option, but a $3600 + adds up

SKF wheel bearings to hold the power down $400 each

BBKs again $5-6 Grand plus new wheels $5-6K to fit over the BBKs.

Transmission and Diff with output shafts, upgraded clutch and flywheel to work with 450+ HP and TQ again that adds up real fast. this can easily add up well over $5-10K

Lots of HP is super sexy as hell. However all the Fastest cars have stock LS6 engines, with upgraded oiling, clutch, flywheel, drive line, suspension and brakes.

Or stock C6Zs with minor changes to the dry sump tank and brake pads.

AU N EGL

Everyone has different ideas and dreams. Which is great and more power to the guy who has $100K to build a race car.

Many of the fastest Corvettes we see on road course are C5Zs with Stock LS6s. Even faster then most C6Zs. Why? Road courses are mostly corners, with short straights, not long straights where the C6Z shines.

JimbeauZ06

One reason. Warranty.

TheHitman24

Recently my cousin lost an ls1 in his trans am and was going to buy a crate ls6. Instead he took the factory block and had it cleaned up. Then bought a complete forged rotating assembly, Some ls6 heads and a mild 224 cam. The entire setup cost him 2 grand (doing the engine swap himself) and the car makes 400 at the tire (full bolt-on) Nice thing now is he has a fully forged motor and he will probably make use with some nitrous in the future.

You can always take your motor and forge it, Have plenty of room to grow if you want more power.
Good luck

SCM_Crash

This sounds like the right way to go. And it's be totally reliable.

danziger

For a street C5Z, the 382 stroker is a nice and relatively inexpensive option. I ran one in my 2000 Z28 and it made 460/450 through a LS6 intake, 1 3/4 headers and didn't even have all the supporting bolt-ons. The torque "curve" was fat and flat and with a 150 wet-shot, it cranked around 650rwhp.

Having said all that, I'll probably build a 402 stroker within a couple years. So many improvements, so many great head choices...

LostCauseZ06

Where did all this random BS of needing an upgraded radiator come in?? what experience do you have? if any? with a stroker motor and needing cooling???


i ran a 408 cubic inch iron block.... daily driven.... in utah desert summers... on a stock water pump, stock radiator, stock fans, 100% bone stock cooling system and some water wetter.

i NEVER saw over 210 degrees... EVER.....


anybody who sees high temps either has air bubbles in the system, or has a bag or something stuck in the front of their radiator that got picked up from the road.

LostCauseZ06

This post is absolutely ridiculous....




wheel bearings to hold the power down??? really? maybe if your doing HEAVY road racing.... i daily drove my car and canyon tracked it MANY times on stock wheel bearings.

BBk's are expensive... required????? dont think so. the stock magnesium wheels are VERY VERY light wheels. not to mention 5-6 grand for tires to fit over the BBK's????? are you kidding me?? 1250 dollars per tire???

5-10k for a tranny and clutch????? wierd.. my full stage 4 built tranny guaranteed for 800 RWTQ was only 1800 dollars, and i even needed an entire new 3rd gear because mine was demolished. My clutch, which is overkill, was 1200 dollars. (Mcleod street twin)


The fastest cars are all stock LS6's????? again.... REALLY DUDE?? did it ever occur to you that they are running stock LS6's more than likely because its a class requirement?



a car, fully decked out with T1 suspension, full built drivetrain, light BBK wheels and a bad a** cooling/oil system, is somehow in some magical place going to be faster with 400 hp than the same car, with all of the additions to make it handle the power anyways, than a 6-700 HP car????





wow....

ctusser

Somehow this thread got hijacked and spun completely off topic by a few road racer guys. I don't think the OP was looking to build a competetive road race car; I think he was just looking to do a refresh and upgrade to his street machine. Sadly these type of off topic tangents confuse more people looking for advice than help them.

SCM_Crash

zeevette

When you have a choice of any motor that fits within whatever budget you decide, why go with just a stock replacement? Everything else being equal, I.E. driver skill level, suspension/tires; it's ridiculous to state a car is faster with less HP. Just 'cause that's your setup, doesn't mean it's the gold standard....pun intended. Personally, I'd go with a combo that uses a LS3 shortblock, and let budget decide displacement.

aweil

mine wasn't

Z06_BluByU

i think what AU N EGL was getting to with the all the fast cars run stock LS6's is because they last and then the DRIVER gets seat time.. and more seat time and more seat time.. on a track running TT's the C5Z06's are hard to beat..and yes.. AU N EGL has more than a little experience..


I guess some of us run often enough to equate track with road track and not drag track..

so let me revise my thoughts..

for the street:
-FACTORY LS6 STOCK ENGINE to keep your car as simple and maintence free as possible.. and little if any headaches..

-if your arent adverse to tinkering a stroker or FI would be fun also..


Drag Track:
no substitute for displacment

Road course:
Stock is enough for all but the most advanced semi-pro drivers


have fun with whatever you decide!! you cant take the $$$ with ya!

Z06_BluByU

i think what AU N EGL was getting to with the all the fast cars run stock LS6's is because they last and then the DRIVER gets seat time.. and more seat time and more seat time.. on a track running TT's the C5Z06's are hard to beat..and yes.. AU N EGL has more than a little experience..


I guess some of us run often enough to equate track with road track and not drag track..

so let me revise my thoughts..

for the street:
Option 1: -FACTORY LS6 STOCK ENGINE to keep your car as simple and maintence free as possible.. and little if any headaches..

Option 2: if you arent adverse to tinkering a stroker or FI would be fun also..


Drag Track:
no substitute for displacment

Road course:
Stock is enough for all but the most advanced semi-pro drivers


have fun with whatever you decide!! you cant take the $$$ with ya!