as some of u guys know im going to be taking my twin turbo iroc out to the salt flats later this summer

my first trip im going to do the 150mph club this speed wont worry me

but i do plan on going into a class to allow me to run whatever i can

so take ur basic 89 iroc no real body mods and what would u expect it to be able to do safley across the salt

only real mods for the salt may be drop springs + the usual other suspension stuff

i dont want to go crazy with mods to run on the salt as ill only be making salt passes 2-3 times a year

 

there are plenty of drag cars going 200+ with little to nothing more than an extended drag wing on the back.

please put a cage in the car though...too much can happen at that speed

 

make sure the hood is locked down solid if you're trying this out, not sure I'd trust just the factory hold down at those speeds.

 

Yeah ditto on reinforcing hood and perhaps front bumper. At speed the nose pushes in

 

You definitely need to have the right tires and make sure you run the right pressures - high speeds require additional psi or heat buildup can disintegrate tires very quickly.

I would say this to prepare - wheels and tires of the proper size and speed rating, upgraded brakes to slow down from speed, clean up air under the body with either a lower front spoiler or belly pans, and a more top speed friendly rear spoiler. i would also suggest a vented hood as the third gens can build up a lot of pressure under the hood at speed,, creating lift.

 

Asides from wheels and tires, the drive train will let you know if anything is out of balance. Good retention is key and the rear high speed spoilers are pretty much needed above 150 to ensure stability. A front splitter will keep air from under the car as well.

 

Drag wing is not possible.this is a street car.wheels and tires are covered.I'm thinking 2 hood pins for the hood .brakes r stock with good pads up fro.t . How Mich would 2 inch dropsprings help .I do have a spaare rear hatch so maybe a cheap ***** wing if u think it would help

 

Check the class requirements as to what safety equipment is required. I'm sure you'll be tech inspected before being able to make a run. They'll tell you what will or will not work. Without prior knowledge on what to expect, you should be starting off in a slower class.

 

already done im good to go for the 150mph class just need to finish getting my cage installed and pick up a fire extinguisher

150 class only needs a 4 point bar im installing a 10pt anyways just cause ill need it for the dragstrip

it dosent look like i need to much more to stepupto the 200mph class which would have to be done in the modified sports class

the biggest things aprently stoping me from going 200mph would be need a correct drivers seat, and a fire supression system ( costly) among a few pother lil things that shouldnt be a problem

 

I'm setting in the cheap seats waiting for you to post the mph.Go-get-um-tiger.Good luck.

 

my first outing will be 150mph club, the step under that is the 130mph club.

alot of ppl told me to do the 130 first but it seems such a waste in a twin turbo powered car,guys on my local forums have said they hit 130mph way before then end of the course and just set the cruise control .

so as my first step ill do the 150 club which i cannot exceed 161 mph if i do this will result in a 3-5year ban, so should give me a nice feel of what running across the salt is like

from there ill decide if i want to pursue going into the 200mph club which im sure after doing 150 ill want to do

 

Have fun and please be safe. I want to visit Bonneville sometime during my life, i don't know if my car will make it out there, but perhaps I can rent something. It would be hella fun in a vette or viper.

 

its something every gear head should do or go and watch atleast once, i went out last summer and it was a blast just watching

ive have always wnted to go out to the salt flats ever since i was a lil kid but i lived in newjersey so that wasnt going to happen,but i moved out to utah so the salt flats was on the top of my list of things to do right away besdies going to see las vegas lmao

hell even if u have to rent a car i know a few places rent out mustangs and chargers u can take one of those into the 130mph class just to try it out, u just have to somehow mount a lil fire extinguisher in the car

 

Along with all the needed safety stuff, maybe a set of headlight covers, if u don't have them, to help with the aero.

 

Call me paranoid, but there is no way I would go race the car at 150+ with stock iron 10.5" front brakes.

 

I've 1/4 mile'd 140+ with stock brakes just fine It aint great by any means and you definately aint stopping super quick but it gets the job done. Only need a 1/4 mile shutdown lane, plenty of time to stop. On salt flats I'm sure you have even more room.

 

I was there last Summer too. It was a great experience to watch and of course should be even better to do. I auto-x and thought about what the car could do on the salt. Keep us posted on how you do and if you run into any tech or other snags. Anyone know what the class record for NA 3.1 is?

 

If you do manage to get into the 200 mph club, you'll get a pretty red hat for your accomplishment.

 

on the salt ui have miles to stop theres nothing u could possibly hit except mybe a cone.

still dont know what im going to do on the dragstrip though if the car performs as well as i think it should im going to need a parachute anyways . but i still dont want to have to rely soley on a chute to get the car stoped.

i need to start looking into cheap brake upgrades, i do refuse to give up my rear drum brakes though, so its going to have to be a front brake upgrade only that wont break the dam bank

 

if u disable the top speed limiter the 3.1 would go 130 , if u could make 130 by the end of the course would be the big question though.

 

probably not adding much, but a test magazine had the Iroc upto 123mph with limiting factors being the auto and driver fear

http://testdrivejunkie.com/1985-pony...-ford-mustang/

tune in around about 3:40.

Though an earlier model, I understand the body/ GFX / ride height etc. is identical. And let's say good testing conditions with a professional driver and a banked race-course flat surface

you mention adding drop springs and other suspension stuff. That turbo stuff must be weighing the front end down more aswell >> all helping to increase straight-line stability

hope you blast past 150, confidently and safely

 

Back in 87 or 88 one of the car magazines had a stock 5.7 car going 149 flat out. They stopped because the side windows sucked themselves out of the weatherstripping! IIRC.

 

Hmm thats weird. Not sure why that would happen. I've only been 142 but it feels like driving a cadillac. Not very exciting..just smoothly rolling along as I would expect. Not even noisey IMO other than motor/turbo noise at WOT

 

I have pegged the 145 speedo in my car a few times. Even with the windows open. Its really not that dramatic. These cars feel great at speed. Remember Joe Kugel went 307mph in a pretty stock bodied Firebird.

http://www.kugelkomponents.com/bonne...onneville.html

Granted 150mph on salt is probably a good bit harder than 150 on asphalt.

 

One thing I would strongly go for is this:

Stop at the wash pits as soon as you get off the salt and clean the whole underside of the car! Dont let that stuff sit on there for even a night!

When we were down there setting a record it was always a constant battle to keep the vehicle clean!

If you are able to get out on the main course I would say go for that! miles of clear area! Have a great time man!

Dont forget about that lovely elevation it's a real HP killer! Most people show up thinking that they are going to run this great MPH only to realize they can't make the HP

 

Plastic body and ground fx might not withstand that speed with whatever is holding them on stock. Salt is slippery, and you want to make sure your car is producing adequit down force at those speeds to hold it to the ground. If you hit a bump in the salt and your nose lifts too much at 200mph, you'll be in the air.

 

some of the guys are recomending a rear wing for traction so i can put the power at a lower mph without tire spin.

i cant do a drag wing well i could but it would look really silly driving around in street trim with that on the back of the car

do u guys think one of these cheap adjustable rice wings would work

http://www.ebay.com/itm/UNIVERSAL-F1...95c9e9&vxp=mtr

i really hate to be THE GUY who puts one on an fbody but like i said i have a spare rear hatch i could use for it just for the salt flats and its cheap

im also open to other alternatives as well

 

Nothing on the salt is set up for low speeds. I don't recall seeing anything with a big wing. Getting going is the hard part but most manage. You could get a push start but if you're careful you should be able to get going.

 

there reasoning was these guys havent been able to go wot until top of 3rd or 4th gear on the salt. there saying the wing may help be be able to start putting the power on a bit earlier then i would be able to without it

i.e say 80mph instead of having to wait till im going 100-110 to start laying into the throttle

 

I understand that reasoning but once you get up to speed a wing that would do any good at low speed would be a huge drag. Many of the vehicles can't even get going without a push start and it's almost painful watching some of them trying to build up speed. But when they do they are optimized for the fast not the slow. I would love to try it myself and I think the '91/'92 "Banshee" body style looks the most suited to high speeds.

 

Cheapest front brake upgrades I've found are aluminum dual piston calipers or a conversion kit to 1le or one of the corvette series. There's a guy who sells the complete sets with modified spindles online very reasonably a quick search should bring it up

 

yup not doing a wing i will leave the stock spoiler on the car .

i need to pick up anew driver seat and a new harness as my stuff is out of date by a year


to run upto 200 mph i can use vr and zr raed tires which wont be an issue but to go up over 200 i need aproved racing tires costly im sure

need to pick up a fire suppresion system need a 6lb bottle for drivers compartment and 5lb for engine with 2 nozzles

need to finish making mounting bar for chute 1 chute is good to 250 mph and i sure as hell dont plan on going that fast

need to change out my wheel studs
need to pin the hood
and put a toe strap on the gas pedal

i also have to figure out how to disable the steering wheel lock, should be as simple as removing the locking plate or locking pin out of the colum.

rules state i need to disable the doorlocks as well not sure what im going to do about that
and last but not least got some tubing on order to add a few bars to my cage to make it all legal

really hope i can get this all done in time for world of speed

other changes ive made is i picked up a built 4l80 for the car ,now i just need to decide on a rear end either 9 inch 12bolt or s60

 

I thought there was licensing and a physical and all that to go beyond the short track.Maybe you could clear that up with info.