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How big of a tire can you fit into the stock wheel well with the 1987 Iroc 16" wheels? I know the wheels are 16x8 and should be able to fit about a 265 in there, but I'm not sure if the backspace would effect that.
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I had 255/50/16 on, but what if you go with a 60 series? Can I get a bigger footprint? Just curious. I have home made slicks on the rear and I'm shopping for tires tommoro. Thanks, Daniel U
Very true, I suppose I should have been more specific with my ? I am only shopping for BFG's and I realize they only make certain size tires for 16's. I wonder if they make 16/285/60's if that would make a larger foot print(and if it would fit) than the 255/50's that I had. They only offer a drag radial 255 now, and this is my daily driver, so as much as I would love the traction, they aren't practical right now. I suppose I might try thier site 1st. duh
Are you looking at the BFGs for the best tire or best price? Best price for their base performance tire would be the GForce Sport, Best wearing tire would be the GForce KDWS, better gripping would be KDW, and the best gripping tire and the most expensive would be the KD. If you have a 16x8 wheel i wouldn't go wider than a 255. If you want something like a drag radial the best one I know of right now is Mickey Thompson ET Street and everybody I have talked to loves them much better than BFGs drag radials. Let me know what you want in your tire and I will try to point you in the right direction, as I sell them for a living.
Are you looking at the BFGs for the best tire or best price? Not necessarily either. I just feel comfortable with my BFG's.Best price for their base performance tire would be the GForce Sport, Best wearing tire would be the GForce KDWS, better gripping would be KDW, and the best gripping tire and the most expensive would be the KD. If you have a 16x8 wheel i wouldn't go wider than a 255. If you want something like a drag radial the best one I know of right now is Mickey Thompson ET Street and everybody I have talked to loves them much better than BFGs drag radials. Let me know what you want in your tire and I will try to point you in the right direction, as I sell them for a living.
I guess I've always wondered what the IROC would look like with a taller/wider tire. Oddly as it may sound, performance wasn't 1st on my mind. I have ran both the top of the line BFG with both 245 and 255 and noticed little difference. I know the 255 drag radial will out perform the previous tires I've owned. I also know they wont last as long. I woud have just continued with the GForce 255, however, they only offer the 255 in the drag radial. My car gets way to much wheel spin for a tired(160k and burns 1.5 qts. of oil) stock 350(5.7) motor. I go through 1st and scratch 2nd. i know that there are obviously other issues I need to address. I have LCARBS and went through most every suspension part, minus the SFC's. I have 2 wheel peel with the 9 bolt BW rear as in my info@ left states. I plan on relocating my battery over the rear where the spare used to reside. I have removed the A/C and plan on lightning the front end as much as possible as $ provides(aluminum parts to replace iron, tubular front end, etc.). I just thought the 285/60/16 might be a nice change visually and wondered if anyone had tried it. Not sure if it would hit my inner fender. I love the look of my stock 16's. I even contimplated mini tubbing and going with 2 of the aftermarket IROC wheels, having them professionally widened by an inch or 2, and run a wider tire that way. Am I rambling?????? Sorry, Daniel U
__________________
Here's my project '54 Chevrolet P/U: http://67-72chevytrucks.com/vboard/s...d.php?t=212753
'54 5 window TPI 5.7/700R4/10 bolt posi w/3:73
'88 IROC TPI 5.7/700R4/ 9 bolt lim.slip 3:27
'99 Tahoe Vortec 5.7/4L60E/ 10 bolt posi w/4:11 Doing my part to warm the globe
So I went the cheaper route and had 2 new KDWS mounted in front and had the old front tires (KDWS) mounted on the rear($310 out the door). Whe my '54 truck is finished, I'll have the 255/50/16 BFG Drag radials put in the back. With these wheels I can't easily rotate my tires, so putting drags on it isn't so bad.
Red92RS what is a very good performance tire for the street with the 16x8" rims on my GTA? I have upped the horsepower so much now that traction is a big concern on the street. I use the MT ET Street Radials when I go to the track and hope they still hold.
Looking for rear tires only and the 255/50/16 appear to be the best size. I currently have Dunlop 245/50/ZR16's on the car now and they are not holding in the least. Thanks.
currently i have 86 sport coupe wheels 15x7 with 215 for the track i want to get an extra set of wheels and tires for the back only. what size will fit under the rear wheel well. i'm hopin to get a 15x 10 rim but if 15x8 is all that fits that fine. i was wanting to run the MT drag radials on the wheels. also whats the largest diameter you can fit about a 28 or 29 inch on a stock rear end?
[quote=1989GTATransAm;3208725] Red92RS what is a very good performance tire for the street with the 16x8" rims on my GTA? I have upped the horsepower so much now that traction is a big concern on the street. I use the MT ET Street Radials when I go to the track and hope they still hold. [quote]
Well, I have BFGs KDWS tires because they have really good wear compared to most performance tires and are a decent price. Now I have a built LS1 so if i get on it I roast the tires. The most popular BFG performance tire I sell is probably the GForce KDW NT( NT stands for New Tread because these have a flame like design where the TT or traditional tread looks like a normal tread design). They get outstanding wet & dry traction also, I will probably buy these after my tires wear out. By the way I am running 275/40zr17s all the way around on 17x9.5 in wheels.
currently i have 86 sport coupe wheels 15x7 with 215 for the track i want to get an extra set of wheels and tires for the back only. what size will fit under the rear wheel well. i'm hopin to get a 15x 10 rim but if 15x8 is all that fits that fine. i was wanting to run the MT drag radials on the wheels. also whats the largest diameter you can fit about a 28 or 29 inch on a stock rear end?
I would think unless u have a high hp engine a 15x8 in wheel would be fine. You could probably go with a 275/60R15 drag radial. Everybody should know that if you put a taller tire on the rear of your vehicle on a street driven car it will cause your speedometer to read incorrectly and that could lead to an unexpected speeding ticket, but for the track obviously it wouldn't matter because it only matters how fast you were going on your time slip. If you want to fill up your wheel well I would suggest lowering the vehicle, I have Eibach's Prokit and believe it looks alot better than stock.
Yep, that is my problem. I'm roasting the tires big time. So much so that it is now a safety factor. So you recomend the GForce KDW NT tires. Thanks I will give them a good look and most likely go with them. Hopefully they have the 255/50/16 versions. Thank you for the information.
I went with Sumitomo HTR-H4 235/55HR-16 on 16x8 IROC wheels on my '83 Z28.It's the same size that came on IROC and then Z28 convertibles.MY CFI 305 doesn't give me a real problem with traction off the line but they do provide excellent responce.These are all season tires but I don't drive her in the rain so i can't attest to wet traction.
__________________ '02 Envoy SLT 4DR 4WD 4.2/4L60E/4.10/G80,K&N,PCM4Less,HiPo cat,Dynomax catback
'83 Z/28 LU5 305 CFI/K&N/Factory Dual Electric Fans/MSD-Hypertech Coil/Performance Rebuilt 700R4/JG1/J65/G80/G92-3.23/Hollow 36mm front-24mm rear bar,TDS steering brace,16" single stripe IROC with Summitomo HTR-H4/T-tops/Pwr everything
'73 C-10 CST 454/TH400(Factory BB Truck)A/C,Tilt,12 Bolt Posi,Dynomax
Miss my '70 Monte Carlo SS454
I would think unless u have a high hp engine a 15x8 in wheel would be fine. You could probably go with a 275/60R15 drag radial. Everybody should know that if you put a taller tire on the rear of your vehicle on a street driven car it will cause your speedometer to read incorrectly and that could lead to an unexpected speeding ticket, but for the track obviously it wouldn't matter because it only matters how fast you were going on your time slip. If you want to fill up your wheel well I would suggest lowering the vehicle, I have Eibach's Prokit and believe it looks alot better than stock.
so if i buy an 15x8 rim what would you reccomend the offset to be? the rims now are 15x7 with a 4.5 inch offset maybe 5 inch or something?
Just put 295/50-16's on the back of my 92 equipped with stock 16" wheels and thin stock rear spacers, just had a minor amount of rubbing that was quickly fixed with a few blows of a rubber hammer, I'm not getting any rubbing at all now even during hard turning. I enclosed a few pics of where it was rubbing and the car fitted with the tires.
Man that's the widest tire I've seen anyone put on stock 16s.Do they rub on bumps at all?Not on the sides but on top.
I've had no problems yet, but stuff a few fat chicks in the back and you may have a problem
I might roll the wheel well for more clearance if needed. Check the pic out, seems to be enough room to me.
There’s a few people out there that have run that size successfully. With stock backspacing rear 16’s they should fit pretty well, I tried a set on some 1/4” offset TT2’s (which puts them out almost ½” further) and I was worried that they would hit a little forward and rearward of the centerline on the outside fender lip, but I didn’t really have any problems, and this was on my formula with eibach springs on it.
Those tires look nice I wish I knew I could put a tire that wide on my stock 16s and still fit them on my car before I bought my new tires 2 months ago.But at least I got an excuse to do burnt outs more often,so I can get new wider tires on the rear.One last thing how happy are you with the cooper tires,compared with other tires you've had?
One last thing how happy are you with the cooper tires,compared with other tires you've had?
I've gone through 2 sets of Cooper Cobras since I bought the car new in 92 and am on the 3 rd. set now, + the Original set of Crapyear Eagles that were on it new, they sucked badly in wet weather. The cars got almost 200,000 miles on it so I would say I like them.
so what's the widest aftermarket rim and drag radial that will fit without rubbing.i'll have a 550 hp engine installed in the coming months,and traction for the track is a big concern.not right away,but first of the year i'll be getting and installing a strange drag rearend in the 88 t/a and would like to go with a 15" and around 10"wide rim and tire combo.on the street i'll be running the gta 16's and not really hopping on it.but on the track,i want to hook and go.probably instaling a bigger roller cam and going around 600hp,then comes spray.needless to say it's not gonna be a mildly modded car,so looking to get everything out of the room i have.rub on take off is a serious problem,i'm thinking it's really gonna comedown hard in the rear on take off.so how tall and how wide in a drag car that is not tubbed.if i can't do that,would a small mini-tub in the back get me what i want?
i am a fairly new member here, but my question is can you run 18inch rims on a stock 91 z28 body? i was thinking of running18x8 rims with 245/45zr18
will they work on all four corners? or is 17 inch rims the best way to go?
i just bought a z28 and i want to know the summer tires that i can buy for my stock 15x7's that are reasonably priced because I'm on a strict student budget!
The secret is to keep the tire height and revolutions per mile aligned with your speedometer. If your tire is too tall, then you are going faster than your speedometer indicates: "Please pull me over for speeding?!"
If it's too short, then you are adding needless miles to your odometer, which depreciates your car a lot.
Be sure to look at ride height too, why raise your Camaro higher? Even a half-inch causes incredible losses in handling. I am a former BFG Certified TA Specialist (factory-trained, blah, blah, blah...)
this is what i have on my 1986 camaro. on The rear it is 295/50/15s and on the front 195/70/14s. I do have a little problem of rubbing but that was b/c i had bad air shocks. which i just replaced and worked out great and my opinion looks nice.
i have a 90 camaro and using stock 15 inch rims 255/60 15 is the best i an do for the front and 275/60 15 for the rear. if i had used the 50 serise the front would have scraped during turning - hope that helps. pics on my site and i went with firestone because they had good tread with compared to just wall to wall width. and since i am not racing it did not matter that i could only go 112 mph - i never go that fast anyway.
ive got 245 45 16's on mine they look stupid, i want some big fat tyres, what is a good fat size for the back, can you change the profile from 45 to 60 or 70?
