C4 ZR-1 Discussion General ZR-1 Corvette Discussion, LT5 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track

Buy ZR or not?

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Old 01-25-2018, 04:24 PM
  #21  
whalepirot
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Originally Posted by Z51JEFF
If he has a heavily modified Z in California he’s got to have a connection with the smog BS. Stock ZR-1s are barely getting past the MAX Nox levels.
He has a rather elaborate approach, with retune, fuel additives and more, plus a healthy dose of sweat!

Originally Posted by JThomas
Didn't the '84 have the Crossfire motor? I can't recall the horsepower rating of that motor, but I seem to recall it was only a one year motor carried over from the C3/1982 model year then replaced by the Tuned Port Injection motor for 1985?
All true.

That L83 is now a 383 stroker, after plenty of mods while still in the Vette. It now powers a '55 F100 sitting atop C4 suspension w/modified frame. While presently carbureted, one day I'll get the garage-cabinet-bound TBI modified as replacement.

The 409 currently in m-m-m-my Shinoda is fast and quite rude. The power curve starts early and pulls hard to 6200 rpm fuel shut-off. The raspy, uneven idle keeps ricers at bay just by sound, after initially wanting to teach an old fart in an old Corvette a lesson. I neither street nor drag race, especially with Vette bretheren. (Well, there were two bikes that I spanked badly.)

Last edited by whalepirot; 02-14-2018 at 12:51 PM.
Old 02-14-2018, 09:17 AM
  #22  
Paul Workman
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As I've said B4, the low hanging fruit in the ZR-1 comes from porting the motor and installing a free-flowing exhaust and headers (and "X" pipe).

The result is a 500+ hp beast that idles as stock (stock cams, after all), keeps original fuel economy and drivability including in stop and go traffic w/ the AC turned ON.

It wasn't bad before the mods, but they completely changed the car's personality! It is a real sleeper...idling at a red light, but screaming like a banshee as the tach passed 7000 and 121 mph in the quarter!

And, first time you do a 5-2 downshift at about 50 mph and stand on it to 90 mph, if that doesn't get your attention, it sure will get attention from any ricer that happens to drag his fart can up along side of you on the open road!
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Old 02-15-2018, 10:46 AM
  #23  
cv67
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buy it because you like the history, engine etc
buying one for just power your 409 is the winner

stock Zs run like youd think a stock C4 "should" is one way to put it. Good but not oh chit fast

Last edited by cv67; 02-15-2018 at 10:47 AM.
Old 02-27-2018, 07:35 AM
  #24  
98vettemann
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Originally Posted by whalepirot
Currently on Vettes #5 and #7; still stricken with ZR mystique. The 2002 C5 Vert is stock and a pleasure, such that my opionion of them has totally reversed.

The '84 C4 has the ultra rare Shinoda body, a ZF6-40 and a modified 409 SBC that cranks out mid-500s. Tis a blast to drive and reportedly outruns (at least initially) a stock ZR1 (this, from a professional who is a Vette nut/owner and straight shooter)! I tend to prefer low end torque and it's been years since I drove a ZR1, so my recall of it is dim.

So, what is it that you owners find that keeps you nuts about keeping/driving your ZR1?

I’ve also owned several corvettes: ZO6 C5s and C6s coupe and GS. The uniqueness and history of the ZR-1 has always intrigued me. Believe me once you see a ZR-1 in person and then drive one it’s an unbelievable feeling. Read the heart of the beast book, visit ZR-1 registry, and start looking. You’ll have ample resources for any questions or concerns as the ZR-1 community is an extremely helpful one. I pulled the plug last summer. Best thing I ever did!



Old 02-27-2018, 10:01 AM
  #25  
FASTAZU
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Well, Summer is almost on us. How's the hunt doing? You know you want one.
Old 02-27-2018, 12:56 PM
  #26  
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Originally Posted by FASTAZU
Well, Summer is almost on us. How's the hunt doing? You know you want one.
Summer is here, here, and I'm getting cockpit time in the top-down C5. I need, oops, want a larger garage and completion of a few big car projects before I can sanely entertain another car of any sort, having 8.

I want a C3 a C2 and a C1! (so I'm nuts)

Isn't it great to have a positive, supportive community like this? I mean, there are Corvette enthusiasts, then there are ZR1 enthusiasts!
Old 02-27-2018, 02:20 PM
  #27  
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Originally Posted by whalepirot
I want a C3 a C2 and a C1! (so I'm nuts)
Not at all had many C3's, C4's and a C5. over 15 in the last 40 years. Its an addiction.



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