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85 iroc 355 tpi vs evo x

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Old Apr 24, 2010 | 10:49 AM
  #1  
fiero377ci's Avatar
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Car: 85 iroc
Engine: 355 tpi
Transmission: 700
Axle/Gears: 3.73
85 iroc 355 tpi vs evo x

everyone at works has dibs on the x but really there only rated at a 13.8 stock. i ran a 14.1 w the stock prom last week. since then i have put on weld wheels, m/t i profiles, roller rockers, fluidampr, aluminum drums, aluminum driveshaft, air foil, gutted maf, and programmed my first prom. and well the differences is extreme, i cant even stop spinnin em in first if i want to. so as of last week, it has a 355, crane cam, not sure of exact specs but it idles a lil rough, not too extreme. it has hypereutectic speed pros, dished w gay 305 heads. 3.73 rear w posi. 700r4 but it shifts at like 5500 way to late. either way i launched w wide ovals and no spin to a 1.82 60' but the 1/8 dosnt correspond to the 1/4 i guess cause it dosnt breathe. stock intake, adj regulator. im sure hes going to be in my rearview the whole time but just seein what u all think!
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Old Apr 28, 2010 | 07:48 PM
  #2  
fiero377ci's Avatar
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Car: 85 iroc
Engine: 355 tpi
Transmission: 700
Axle/Gears: 3.73
Re: 85 iroc 355 tpi vs evo x

so does no one on here know what an evo x is? x as in 10
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Old Apr 29, 2010 | 12:28 PM
  #3  
87350IROC's Avatar
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From: Everett, WA
Car: 87' IROC
Engine: L98
Transmission: T56
Re: 85 iroc 355 tpi vs evo x

Sounds like a good race. If he is willing to dump the clutch at 6000 rpm he'll jump way out in front off the line. How long is the race? 0-60 he should take you if he dumps the clutch, 1/4 mile should be a drivers race, longer and you should win.
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Old Apr 30, 2010 | 03:03 PM
  #4  
IROC#1's Avatar
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From: Renton, WA
Car: 1988 IROC Z
Engine: 5.7 litre
Transmission: 700R4
Axle/Gears: 3.27 Posi with 4 wheel disc brakes
Re: 85 iroc 355 tpi vs evo x

All the tests Ive seen for a STOCK Evo X put it at 13.5-13.6 in the quarter mile (300 hp) but its easily modified to push 400 hp for less than $1000 which puts it in the high 12's with 0-60 times in the 4.4-4.5 range.
Bottom line a stock race may be close...if modified you will lose (especially considering they are AWD)
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Old May 11, 2010 | 10:51 AM
  #5  
Big Dog Chevy's Avatar
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From: Burbs, Illinois
Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: 85 iroc 355 tpi vs evo x

I've raced an tuned Evo and know two guys that has one. First off don't belve the hype. Just cause they are all wheel drive doesn't mean they will blow you off the line. The tuned Evo I raced put down 320hp to the wheels and was a light car. But I got him off the line buy 2 cars lengths with a sick car ( valve float, street tune and slipping trans ). Most Evo drivers can't get them to 60' that well at all ( 1.85 - 2.1 ) cause they just dump the clutch at too high of an rpm or bog at too low of an rpm. By doing that they don't build boost and are dogs until boost picks up. Then they have to be able to bang those gears too. Most drivers can't. Look at real world examples and you will see what I'm talking about. If you can run mid 13s on a warm day then you should be able to take em as long as you get out first and it's a mildly modded one. Traction is the key.
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Old May 11, 2010 | 12:51 PM
  #6  
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From: Everett, WA
Car: 87' IROC
Engine: L98
Transmission: T56
Re: 85 iroc 355 tpi vs evo x

You must have raced one of the 90% that are not willing to dump the clutch.
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Old May 11, 2010 | 01:00 PM
  #7  
Big Dog Chevy's Avatar
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From: Burbs, Illinois
Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: 85 iroc 355 tpi vs evo x

He did dump the clutch that's the problem. He dumped it with no boost bogged then picked up. I left off a foot brake and was gone, put 2 cars on him before second gear. Check out Dragtimes and you'll see for the modds and money those guys have in their cars they are not all that. Most 60 around 1.85 with modded cars.
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Old May 11, 2010 | 01:45 PM
  #8  
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From: Texas
Car: 1992 Formula Firebird
Engine: 305CID (LB9)
Transmission: World Class T5
Axle/Gears: 10-bolt, 4.10 gears
Re: 85 iroc 355 tpi vs evo x

Should be a good race. However don't discount what TPI can do. If there is ONE thing it can do well its make torque. Off the line TPI cars with the right gearing are hard to beat provided you get good traction. Beyond that in the 1/8th or quarter mile I could easily see the OP's car winning. Past 1/4 mile though I think the EVO will win. The stock TPI just doesn't have the top end to go the distance. OP, you need to at least port the **** out of the plenum and change those runners. A larger throttle body may be in order as well though a 58mm is going to be too much for that engine I think. Right now you are starving your engine for air.
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Old May 11, 2010 | 04:19 PM
  #9  
Big Dog Chevy's Avatar
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Joined: Apr 2009
Posts: 298
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From: Burbs, Illinois
Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: 85 iroc 355 tpi vs evo x

I agree. If you can't get a big enough jump on him out the hole he will come around you on the top end. It has that turbo and high power to weight ratio so he will be coming.
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Old May 13, 2010 | 01:35 PM
  #10  
Dark Ember's Avatar
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From: Houston, TX
Car: 90' Firebird Formula 350
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: 85 iroc 355 tpi vs evo x

Make sure you race him on a road with good traction(pavement, not asphalt). In the event you get good traction, and he manages a awesome AWD launch, you should only be down 1-2 car lengths. Make sure you know how to launch your car on this partictular road. If he only gets 2 carlengths at first on you, then you have a chance to run him down. I hope you are running 100+mph trap speed? You will need that to run him down in a hurry, and crush his hopes of beating a 355 .
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Old May 13, 2010 | 05:12 PM
  #11  
Big Dog Chevy's Avatar
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Joined: Apr 2009
Posts: 298
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From: Burbs, Illinois
Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: 85 iroc 355 tpi vs evo x

Naw man if he doesn't get that evo out the hole he won't be able to catch him on the big end with his combo. He's all out of hp by 5000 rpm and that evo will be coming on the top end (105+ mph). His best bet is to get/borrow some DRs and go to the track.
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Old May 13, 2010 | 07:13 PM
  #12  
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From: PA
Car: Escort GT
Engine: 1.8
Transmission: Stick
Axle/Gears: Both
Re: 85 iroc 355 tpi vs evo x

Talk ****, get him pissed... get him good and excited. Hopefully there is a friend in the car... if you get him all fired up you may get to see the spectacular wide open, sidestep the clutch- fu(kin DSM Xmission explosion! I have seen this in person once... The kid in his hopped up super tarbo general tso's chikin **** chang bumble bee ride.. side step the clutch wide open--on a hot day--on good tires--on fresh blacktop. Destruction was awsome... parts rolling under the car, spoons in a blender sound.. car lurched about 2 feet... oil everywhere... The look of despair on the kids face when it set in... I cried manly tears of joy.

Kid thought he was going to get the holeshot on my buddies supercharged stang on slicks. Funny thing was that my buddy never launched when the light turned green. He knew what was going to happen and just wanted to watch.
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Old May 16, 2010 | 08:45 PM
  #13  
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From: st paul
Car: 1985 iroc z
Engine: 350 .30 over
Transmission: t-5
Axle/Gears: told aftermarket moser 3.73 posi?
Re: 85 iroc 355 tpi vs evo x

i think it should be a close race granted you get traction... but if he even makes the slightest mistake id bet my money on you
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