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Search: Posts Made By: XfireZ51
Forum: C4 ZR-1 General Postings 6 Days Ago
Replies: 25
Views: 893
Posted By XfireZ51
Re: A question for the longtime owners.

Marty,

If I bought a C8 I know I would?t be wrenching on it. The ZR is one of the last generations that a ?shade tree? guy like me can play w and modify. That is certainly a big part of the fun.
Forum: C4 ZR-1 General Postings 1 Week Ago
Replies: 25
Views: 893
Posted By XfireZ51
Re: A question for the longtime owners.

This is my second ZR since 2007 having owned this one now since 2010. The chassis has 165k on the ODO but literally everything underneath and engine has about 55k or less on it. It pretty much has...
Forum: C4 ZR-1 Technical Postings 3 Weeks Ago
Replies: 6
Views: 201
Posted By XfireZ51
Re: Knock Sensor 1995 ZR1

U sure u bought the correct sensor? There?s a difference between ZR and regular C4. I forget the value, think its 3.2K ohms, but u can check resistance on sensor to make sure. Check w Jerry at...
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 01-26-2024
Replies: 15
Views: 1,122
Posted By XfireZ51
Re: 19 Miles, 90 ZR-1 Selling Today Barrett Jackson

That?s if it was bought at list which many ?90s were not.
Forum: C4 ZR-1 Technical Postings 12-19-2023
Replies: 19
Views: 3,299
Posted By XfireZ51
Re: Best Place to Buy Injectors?

RC Engineering has an easy BSFC CALCULATOR to help determine injector flow required to support a desired CHP. The stock injector flow is good enough for ~ 540chp w an 80% headroom from static.
I...
Forum: C4 ZR-1 Technical Postings 12-06-2023
Replies: 13
Views: 4,251
Posted By XfireZ51
Re: Stalling sometimes at stops?

Had that issue w mine a number of years ago. I have a 63mm TB so no dag. Throttle return springs get weak after 30 years and I gotnone of Marc?s helper springs. Throttle closes correctly ever since.
Forum: C4 ZR-1 Technical Postings 12-05-2023
Replies: 13
Views: 4,251
Posted By XfireZ51
Re: Stalling sometimes at stop

Well I guess we can ask Marc next week. Closing the throttle plates causes the ECM to increase IAC steps in order to maintain commanded idle speed. This gives the ECM more ?headroom? to control idle...
Forum: C4 ZR-1 Technical Postings 12-04-2023
Replies: 13
Views: 4,251
Posted By XfireZ51
Re: Stalling sometimes at stops?

Marc probably closed the throttle plates slightly to increase IAC steps.
Forum: C6 ZR1 General Postings 11-26-2023
Replies: 12
Views: 6,823
Posted By XfireZ51
Re: 2012 Supersonic Blue ZR1

I think the C6ZR is a cleaner looking ZR than the C7 version IMO.
Forum: C4 ZR-1 General Postings 11-22-2023
Replies: 2
Views: 911
Posted By XfireZ51
Re: Quick Jacks on Sale

I?ve had QJ 5000 for 4 years and love them. They make oil change, swapping O2 sensors, knock sensor, even working on top end much easier. With no room for a lift, these are the best alternative.
Forum: C4 ZR-1 Technical Postings 11-16-2023
Replies: 4
Views: 1,440
Posted By XfireZ51
Re: 02 Sensors

AC Delco are the only ones I use. Possibly Denso. Bosch is prone to drop outs.
Forum: C4 ZR-1 Technical Postings 10-23-2023
Replies: 6
Views: 967
Posted By XfireZ51
Re: Engine knock

How has the motor been modded if at all? If its stock and has the stock calibration, knock shouldn?t be much of an issue.
Forum: C4 ZR-1 Technical Postings 10-07-2023
Replies: 4
Views: 1,193
Posted By XfireZ51
Re: ADS Super Chip Tune

Most of the pre-done ?tuner? calibrations done in the 90?s were not worth the $ IMO. Certainly, Marc H?s tuning brings years of experience w the LT5 and is a favorite on this forum. Tuning the LT5...
Forum: C4 Members' Rides 09-28-2023
Replies: 20
Views: 3,629
Posted By XfireZ51
Forum: C4 ZR-1 Technical Postings 09-22-2023
Replies: 7
Views: 1,454
Posted By XfireZ51
Re: No start help!!

Welcome to the brotherhood. Been there done that.
Forum: C4 ZR-1 Technical Postings 09-08-2023
Replies: 12
Views: 2,808
Posted By XfireZ51
Re: Limits of stock LT5 with boost?

At 520chp, I would think the ?juice isn?t worth the squeeze?. 520 is pretty much achievable NA while maintaining the 5.7L displacement.
Forum: C4 ZR-1 General Postings 08-09-2023
Replies: 9
Views: 1,256
Posted By XfireZ51
Re: DRM coilover height for best ride

IIRC, mine are 425/300. Also, using 18/19? wheels helps give the car a ?raked? look w/o the necessity of lowering too far.
Forum: C4 ZR-1 Technical Postings 06-26-2023
Replies: 16
Views: 1,942
Posted By XfireZ51
Re: Wiring a shift light

Fuel cutoff/ turn on can be modified via calibration.
Forum: C4 ZR-1 Technical Postings 06-26-2023
Replies: 16
Views: 1,942
Posted By XfireZ51
Re: Wiring a shift light

No splicing necessary if u use the diag connector for the Ignition Module by the firewall.
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 06-24-2023
Replies: 5
Views: 1,502
Posted By XfireZ51
Re: 4 Sale: 1992 ZR-1 Red/Black

This is a great car! Lee and I ran our ZRs together at Byron Raceway many years back.
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 06-15-2023
Replies: 4
Views: 1,136
Posted By XfireZ51
Re: Wanted: Alternator for Rebuilding

Erik,

I contacted Marc regarding delivery of alternator. He is not aware of any requests for alternator rebuild on hus backlog I suggest u contact him and make arrangements. I can get alternator...
Forum: C4 ZR-1 Technical Postings 06-14-2023
Replies: 5
Views: 965
Posted By XfireZ51
Re: Idle transition issues

You should check TPS for dead spot.
Forum: C4 ZR-1 Technical Postings 06-11-2023
Replies: 3
Views: 646
Posted By XfireZ51
Re: Please help from Argentina no start

Plastic smell near ECM could be a fusible link behind battery.
Forum: C4 ZR-1 Technical Postings 06-10-2023
Replies: 9
Views: 1,311
Posted By XfireZ51
Re: Looking for LT-1 & LT-5 Specialist

You forgot Pete (Dr.Greekenstein) in DesPlaines, IL.
Forum: C4 ZR-1 General Postings 06-04-2023
Replies: 8
Views: 1,518
Posted By XfireZ51
Re: C6 Z06 wheels on a ZR-1?

Think they do altho it may be that they aren?t available in ZR-1 offsets. Hiwever, the offset for the ZR isnonly different for the rear. The 84 has the same iffsets as the ZR-1.
Showing results 1 to 25 of 500

 
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