Rob P

iTrader: (1)

I just installed the 24lb SVO injectors in my ZZ4TPI motor. Do yours tick louldly? I remember taking my new 91 Z28 back to the dealership for what I thought was ticking lifters but found it was just the injectors. It just seems the SVO's are a little louder than the stock GM LT1 24lb'ers.
p.s. I like the SVO's better fit wise then the GM injectors.

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Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/relocated MAT/ AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

John Millican

iTrader: (1)

Yes, mine tick loudly, so much that I adjusted my valves thinking that's where the noise was coming from.

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86 Camaro Sport
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Dynomax Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project

Rob P

iTrader: (1)

HAHAHA, I adjusted my lifter on the drivers side yesterday! Why didn't you tell me LOL!
|Car is running much better, maybe still rich, 108 Block Learn, 128 under hard acceleration. Maybe I have to turn the pressure down a tad on the SVO's. It's set at 42psi now.
Oh, don't put those GFX on your car, it will ruin the sleeper attitude!

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Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/relocated MAT/ AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

theformula

I can hear mine from the drivers seat. Just another noise in the car to **** my girlfriend off.

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91 Formula 1LE 1 of 46
305 TPI 5speed
1LE/G92/WS6

Paxton SN92 supercharger(SN93 upgrade), Ford SVO 24#injectors, Crane AFPR,SLP airfoil, ported/polished plenum, March alt. pulley,Crane Gold 1.6rrs,MSD coil,MSD6AL (5200rpm limit),Holley 9mm wires,Ac delco R43ts plugs,custom chip,Bosch O2sensor,SLP 1 5/8" headers,SLP catback,shortened shifter,3:73s w/Auburn posi,170* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.

ryn28

iTrader: (1)

I had the same loud ticking problem when my ZZ4 went in. Turns out if you put a thin spacer (very thin washer) under the fuel rail between the rail and the intake manifold it will raise the injectors out just a hair and the loud ticking sound will be gone. This happens with aftermarket intake manifolds sometimes. You have to use a very thin washer so the injectors are still seated far enough into the intake manifold. I've been told that they tick loud when the fit in the intake is very tight and/or too deep. I was also told that if the fit is too tight the injector may bind up and not even fire but that's rare. All I know is that this tricked worked for me. Hope this helps.

Omar

My SVO 24# injectors also tick loudly.

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1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System

Joseph Andres

iTrader: (6)

I got the same injectors. They are much louder than stock.

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1988 GTA 5.7L TPI Auto
355 ci. block,TPIS ZZ-9 Camshaft, SLP Headers, Borla Cat Back, B&M Holeshot 2400 Stall Converter, 3.73 Richmond Gears

"Why ride a stang when birds can fly?"

http://www.geocities.com/thegta

Rob P

iTrader: (1)

Thanks everyone. The injectors do fit really tight in the Edelbrock Intake. I will put the spacers back in under the fuel rail that I had before and that will probably quiet them down a bit.

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Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/relocated MAT/ AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

Daz

iTrader: (1)

let us know if it works!

DAz

TRAXION

Rob,

Be careful. Seriously. You are running way too rich. 108 BLMs are the absolute limit of adjustability for the ECM (without PROM tweaking). Basically, the ECM is seeing a rich condition and attempting to adjust. But, during this adjustment period the ECM reaches a point where it cannot adjust anymore. That point is at 108 BLMs (albeit there is still a tad bit more adjustability with the INT).

You need a PROM change. There is no other way around it.

Furthermore ... at WOT the INT will be at 128. That means absolutely nothing. The ECM is in open loop and not looking at the O2 sensor.

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

Rob P

iTrader: (1)

Trax,
Actually, a friend reburned a stock MEMCAL for me, we adjusted the TQ lock up speed, changed injector size to 24lb and played with the fans a little. I just haven't put it in the car since I got it back on the road after the bad injector problem. I'll see how that one goes. Thanks for the advice.


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Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/relocated MAT/ AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

Mojo

A quick point: SVO injectors are rated at 36psi, GM injectors are rated at over 40psi. That could be a good part of your rich condition.

Chris

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408cid 1985 Corvette
http://www.mojosgarage.com