9000 Rpm V8??!
 

hey guys I'm ready to build a shorter than stock stroke 302 so i can rev it higher. What do you think? can you help me? I would like to install some hugh comp pistons (13.0:1) aluminum heads (don't know which, any suggestions?) and a carburator. Why the carburator? I think the carburator will be better with a high rpm intake than any EFI intake on the market. Of course the engine will have top quality materials as Scat lightweight crank, and lightweight pistons. A DSS main support girdle and a High volume oil pump.

One last thing, I would like to rev it up to 9000 RPM's.

Don't even attempt it on a stock block or a wet sump oiling system. From the sounds of it, I don't get the impression that you really realize what 9000 rpm is like and what it'll take to just get past 7500 rpm. Better go talk with a reputable engine builder that's built high rpm motors.

The guys in Street Bandit and Hot Street are spinning their motors to 9000-10000rpm, but you're talking solid lifter cams with mondo spring pressure (like 800# open), sheet metal intakes, R-blocks, dry sump oiling, roller cam bearings, etc. Plus, what kind of trans do you plan on running behind a 9000 rpm motor? Ain't going to be no Tremec or T5. Better plan on G-force or something similar with a tricked out long-style clutch setup. Tuning the clutch to release & hold at 9000rpm is a black art in itself.

Oh yea , dont forget your shatterproof belhousing:D, and a bottomless bank account, It can be done, R block, solid roller, titanium parts, high compression, basicaly a nascar design.

Hhmm, I see. I knew I had to use the best parts but didn't plan on the R-block. Since I only plan on racing top speed street racing.
I've read about the R-block tendency to overheat because of it's design. I do plan on using an electric water pump with 2 fans and a good oil cooler.I planned on using a T56 (blueprinted version), since I don't plan to drop the clutch at 9000 RPM's, with a Mc Leod double disc setup. Given the facts that you gave me, a 8000 RPM engine could it be possible, or would it be the same?

7200-7500 max would be more realistic. Start looking at the parts that you plan on running and realistically evaluate what they're capable of. For example, you can't expect to run a GT-40 intake up to 7500 and make power. I'd suggest talking with a reputable engine builder.

Hey! the old Benneton FORD F1 V8's were the highest revving V-8's in history, some 14,000 rpm's, sounds like your's will be the second.

No offense intended, but.....why? What do you mean by "top speed street racing"? Are you talking about open road courses or long distance 150mph races on public highways and backroads? Is this going to be a daily driver? It's going to cost a fortune and will probably have poor drivability. You will have to replace almost every moving part on the car and reinforce many stationary parts. Reliability will also be very low. There's a lot of moving (breakable) parts in a V8.

its not that hard with stock stuff just disable the rev limiter add a faulty n2o sylenoid and i hit 9000 plus rpm once had to build a new engine though but it is possible with stock componce untill they stop.

Lol......:D

I'm laughing harder than you are Dark 5.0!

Beyond the absurd!:rolleyes:

Actually, I was really close to 9,000rpms once too.

I was ticked off one night (really ticked off) and I was on my way home in my old 88GT. I had just topped it out in 3rd and was looking to shift it into 4th, and just coast down. Instead I got it into 2nd!!!! The tires howled and the tach just flew. I was back on the clutch, but everything was fully engaged. My estimate was probably somewhere in the neighborhood of 8500rpms anyway.

I certainly wouldn't want to try to get it there under it's own power though. The top of the line 302's that were used a few years back ran up to 11,000rpm on the F1 or something like that. They were allowed to compete under the displacement rule for 2V engines. The 5.0 was set into an all American chassis to form an all American entry. The other car that team used was powered by the Aurora's DOHC engine. The 302 won the only race they entered it into.

I once had Reeses Peanut Butter cups fly out of my butt in a figure eight flight pattern!

Come on guy's, no stock block is going to survive 8500 - 9000 RPM's, you've heard of a Mexican block right?, well, I think you guy's are smokin' blocks of Mexican!:D :D :D

damn, you too? I thought i was the only one. Took me weeks to get the penut butter cleaned off the walls.

Believe what you want, I certainly have no reason to lie about it. :rolleyes: 120mph in 2nd gear. Mind you it didn't stay in gear long. There were no ill effects from the experience.

Did the same thing once too Unit...got the 3rd to 2nd shift going down track at about 85mph. Slicks bit, clutch held its ground, motor spun to about 8600rpm. Bent every exhaust valve and pushrod in the motor. Block held up fine...wish I could say the same about myself. Sustained 8000+ use from a stock block....not gonna happen.

Sure, I'm calling Kuntz & Co. soon but I just wanted some opinions.
The car will be street driven, not a daily driver. Reliable? Could be.
Streetable? C'mon fox body mustangs are hardly streetable in stock form (thanks to the great solid axle). Car wont have interiors, just 2 lightweight seats and the stock dash. No paneling. Fiberglass hood, hatch. Im thinking about steeda suspension with some lightweight K member. Im trying to get it as lightweight as possible without having to remove the bumpers or cutting the car up.
Here where I live we race to top speed, we have some roads we can "safely" use at night and cops never show up. It's great.
Just yesterday ( the races are held thursday) I saw a 930 blast down at like 180 MPH. Gotta love those Porsches.

Control tower, the Peanut butter cups have landed safely.... they ran out of Bull$hit!

gtsr515 your comments have made laugh. But, to prove i'm not lying I will take a few shots of some cars at the races. Including the porsche I mentioned. So you can take those Peanut butter cups and shove them in your butt. :D
Have a nice day Peanut Butt.

You know, you really don't need a 9000 rpm motor to hit top end. Just throw some 2.73's out back, build the motor up right, and with a decent 5-speed and all kinds of horsepower, you could hit some pretty high speeds. May take you longer to get there....

Where the heck is "PR" anyway?

--nathan

I considered that option but I would need more horsepower and torque to move those gears. If I had another 3000 more RPM's I could get away with some 3.73's. zbut given the insight that a few of the memebers have given me, I'm considering using some boost now. Don't really know, it all depends on what they tell me at Kuntz. Oh, and PR is Puerto Rico.

Ah....Puerto Rico. I was mentally running through the states in my head and just couldn't bring to mind anyplace matching "PR." :D

--nathan

Sustained 8500-9000rpms? LOL, hell no! I was making fun of the idea. My engine held together, luckily for me, and it didn't see that kind of rpm for more than a split second as the howling of tire and slipping of clutch allowed me to hit the clutch again a hair after it grabbed.

Mora, you're a total idiot. Weight doesn't affect top speed worth mentioning. It affects acceleration. Using a fox body Mustang for a top speed run? Are you an idiot? (Wait, I've already answered that question, see reference at the beginning of this paragraph.) The Fox Mustang is a brick. It'll take better than 700hp to hit 200mph with it, regardless of weight. Go read a physics book.

ok im from canada so im confused where we do top speed stuff we got about 300 miles of open road . where in P R would you have the space to hit 180 and slow down on the island ?

im not disbilieving you I just dont know much about where your from except Bacardi comes from there .

Ps a power adder will help you get to the increased RPMS with 3/08 i hit 173 mph the car had more but i didnt. ( oh yeah i dont know how accurate the radar gun the guy had set up was ive never been on that side of one.

ultimate question
 

How much hp are you planning on making? That is a question you need to be asking yourself. Rpm's get a big huge cam somewhere in the 800 lift range,about 310 duration a shot of vodka so you do not feel the pain in your wallet when your motor comes apart.

Seriously if you want that kind of rpm there are a few calls you can make. Bennet racing is one,Kuntz and Co. is another,Keith Craft is a good company.

Now to turn the rpm's you are looking for,just the bottom end alone will cost close to 9-10k,that is dollars by the way.
To flow the air to make hp at 9000rpm's it is going to take a set of serious race heads like Yates,Brodix,Glidden Victors.
Intake just start at a Super Victor and work your way up,sheetmetal or something along that line,oh by the way most serious Super Victor intakes that have been ported cost in the neighborhood of 1200-1600 dollars.
The valvetrain,hmmm give Cam Motion or Comp Cams or one of the other cam companies a call.9000rpm's wonder how much would a knife edged crank cost?
Heck at least you do not have to pay a fortune for the block Dart makes a block now that cost 2 thousand dollars fully machined.
Do you have extra valvesprings and lifters,cam bearings? You will need to replace those regularly.
If you have not noticed by now I am being sarcastic,a 9000rpm motor belongs no where near the street,not even on cruise nights,a 9000rpm motor is serious business,you plan on turning 9000rpm's I hope you have 10,000rpm's brakes.
It is a lot of more sane ways to make hp,then turning the piss out of your motor,you can make 450 NA with a carb and still drive it on the street and keep the revs below 6500,best thing to do call around and ask,tell the builder what you want,your goals,and how the car will be used and most of them will guide you in the right direction,will they try to pedal a certain component? yes they will,but throw out options to get a reaction from them,you will be able to tell if they pushing the latest wonder component.

Good Luck with your goals,but be smart about a high rpm screamer for the street

I once reved my stock 89 to 7k for a brief second. I was going up a steep hill in third gear, I had my hand resting on the shifter and accedently poped it into nuetral while i had the gas floored. No damage but it didn't sound so good.

LMFAO......this is one funny ***** post. There should be a section on his site for mustang humor. 9k rpm.....hahahahahaha
peanut butters flying in figure 8 flight patterns....hahahahaha......I'm glad I checked this thread out.

How fast do you want to go? With 3:73 gears, 26 inch tall tires, you can hit 200 mph @6500 RPM in 5th gear. If you wanted a 9k RPM engine, you would need to spend about $20,000 on the engine. Ever see those NA pro mod engines? theres a Probe [powered by a destroked 351 (302 ci) pushing about 730 horses at 9,300 RPM. It costs $75,000 to biuld an engine like that. And he has to check the valve springs in between each run, and replaces the crank/rod/cam bearings every 50 runs. Now, do you really think its worth the money to buy a 9k+ rpm engine for the street?


Check out bennett racing, they make a short block that will take 8k rpm and 2500 horses for $10,950. Then add in the cost of cylinder heads that will make power at that RPM level (at least 400 cfm intake) thats another $8,500. Then all the other components. Do the math.

If top speed racing is what you are interested in, check out the cars competing in the Open Road Race Challenges. The unlimited class average 190+ on closed down sections of highway in Nevada/Arizona. Don't reinvent the wheel, check out what they are using, and i doubt they rev past 6500;)

Forget all this, just talk to radical GT. He traps something ungodly like 150+ in the 1/8th. Steal his motor, change the gears, and you should be fine. Seriously though, the motor is Pro built with a two stage shot. And its big. Do the cops not care because you all just fall into the ocean at the end of the race??

HAHAHAHAHAHAHAHAHA FUNNY AS HELL! :D

9Kand the street will not heppen less you have about 10K a month to spend on it... you dont need that Rpms to be fast heck a 7-7.5K Motor will Make tons of power and be faster then Many Powered added cars if done good. you say top end well get Like 3.73 gears and wind it out that will have to Booking!!!! How Much Hose you looking at getting????? 6k In 5th is about 180Mph...ture a ( k reving motor will Make more power But the Cost GOES WAY WAY up fast!!!

You guy's have me lmao here at work and getting funny looks because of it.
I agree with mysweetlx. We need a humor forum.

I couldnt make it all the way through the posts, I was to busy laughing:D . But dam if you want cheap top end ..... build a late 460 get some SCJ heads(cheaper than svo) runn some nice compression 11 to 1 and stick a 273 gear in it, Watch the card twist hehe. Ohh and tall tires

PR?????????????
 

I thought "PR" stood for public relations?