Multecs??

Reply Subscribe

Thread Tools

Search this Thread

Apr 30, 2017 | 04:43 PM

#21

Joe C

Race Director

Joined: Aug 2000

Posts: 11,470

Likes: 763

Quote:

Originally Posted by Cjunkie

Bosch pinks are the correct injector for an 86 and later (22lb come out of an 02-04 Mustang GT 2V GT).
The orange,yellow, and blue tops are technically wrong for this application. Don't know why they throw them in but they do.

not sure you can go strictly by color on this one. different part numbers for different applications. FWIW, I've bought 3 sets for aluminum head L98's from FIC - all three sets were yellow and according to Jon, 22 pound injectors, and correct for the AL head L98's. for my 85, blue, 24 pound injectors from FIC. have to say, I put my trust in Jon on this one.

Last edited by Joe C; Apr 30, 2017 at 04:46 PM.

Apr 30, 2017 | 05:05 PM

#22

Cjunkie

Safety Car

Joined: Jun 2006

Posts: 4,008

Likes: 1,487

From: Ashland, OH

Quote:

Originally Posted by Joe C

You can do/trust, whoever/whatever you want. I'm telling folks where they can get take out 22lb injectors cheap. The 02-04 2V Mustang GT has them OE (and they are pink tops). You can call Ford,Bosch,Nippondenso, and Jon. They are all over as take outs. I pay $60-$100 for near new sets of 8.
You want to pay more that's your business.

Apr 30, 2017 | 05:07 PM

#23

Cjunkie

Safety Car

Joined: Jun 2006

Posts: 4,008

Likes: 1,487

From: Ashland, OH

Quote:

Originally Posted by aklim

Sometimes it is about cost. If a set of 22 goes for 200 and 24 goes for 160 because it is more popular, I'd get 24 to save 40 because I know that the ECM will compensate

I have found them for as low as $60 at the Ford swap meets. Its about knowing what they came in OE and where to find them. Your paying to much for 24lb injectors at $160. Can be bought for $80-$100 or less.

Last edited by Cjunkie; Apr 30, 2017 at 05:09 PM.

Apr 30, 2017 | 05:13 PM

#24

BOOT77

Melting Slicks

Joined: Nov 2010

Posts: 2,216

Likes: 112

From: Michigan

Lucas, bought my 86 with them n read they were dealer replacements at one point.

Apr 30, 2017 | 05:33 PM

#25

Cjunkie

Safety Car

Joined: Jun 2006

Posts: 4,008

Likes: 1,487

From: Ashland, OH

Quote:

Originally Posted by BOOT77

Lucas, bought my 86 with them n read they were dealer replacements at one point.

Interesting to know that. When I bought my 86 C4 in Feb. I noticed someone had taken the Multics out and replaced them with Lucas injectors at one point.

Last edited by Cjunkie; Apr 30, 2017 at 05:33 PM.

Apr 30, 2017 | 08:53 PM

#26

81c3

Le Mans Master

Joined: Dec 2005

Posts: 8,552

Likes: 935

From: Communist Colorado

What are the signs a Multec is failing?

Apr 30, 2017 | 08:56 PM

#27

aklim

Team Owner

Joined: Jul 2004

Posts: 28,376

Likes: 3,260

From: Hartford WI

Quote:

Originally Posted by 81c3

What are the signs a Multec is failing?

I'd think that once the coil insulation is eaten it will lose resistance but it is going to be all or nothing, I think. Just toss it prophylactically.

Apr 30, 2017 | 11:12 PM

#28

JrRifleCoach

Team Owner

Joined: Sep 2003

Posts: 20,172

Likes: 672

From: Freedom is never more than one generation away from extinction.

St. Jude '03 thru '24

Quote:

Originally Posted by aklim

Sometimes it is about cost. If a set of 22 goes for 200 and 24 goes for 160 because it is more popular, I'd get 24 to save 40 because I know that the ECM will compensate

These were new take-offs and sold on fleabhey for $150.

I only mentioned the iron head as many seem to think there is a difference.

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

8 Coolest Corvette Pace Cars (and Replicas) of All Time

Verdad Gallardo

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Joe Kucinski

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Verdad Gallardo

Top 10 Corvettes Coming to Mecum Indy 2026!

Brett Foote

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Michael S. Palmer

10 Revolutionary 'Corvette Firsts' Most People Don't Know

Joe Kucinski

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Michael S. Palmer

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Joe Kucinski

10 Most Common Corvette Problems of the Last 20 Years!

Joe Kucinski

Apr 30, 2017 | 11:51 PM

#29

81c3

Le Mans Master

Joined: Dec 2005

Posts: 8,552

Likes: 935

From: Communist Colorado

Quote:

Originally Posted by aklim

I'd think that once the coil insulation is eaten it will lose resistance but it is going to be all or nothing, I think. Just toss it prophylactically.

I ask because when cold, the engine starts immediately. After its warm and I get back in its much longer crank time and sometimes 2 -3 separate times turning the key, then it will fire. It also idles a bit rougher than I think it should. I havent had the chance to do a proper tune up yet, so I havent counted out the basics, but it seems more like its temperature & fuel related. Runs really good otherwise and seems responsive with decent power....

May 1, 2017 | 12:53 AM

#30

aklim

Team Owner

Joined: Jul 2004

Posts: 28,376

Likes: 3,260

From: Hartford WI

Quote:

Originally Posted by JrRifleCoach

These were new take-offs and sold on fleabhey for $150.

I only mentioned the iron head as many seem to think there is a difference.

Depends on who does it, I suppose. If it is a reputable company selling take offs, sure. Someone who told me it was a take off from his 100 mile car, nope. It would have to be way lower for me to take a chance.

May 1, 2017 | 12:57 AM

#31

aklim

Team Owner

Joined: Jul 2004

Posts: 28,376

Likes: 3,260

From: Hartford WI

Quote:

Originally Posted by 81c3

Hard to say. Without testing, who knows. Also just because the coil is good doesn't mean it is good. For instance, I could cut off the tip and it would still register good with an Ohm test which is why I think it is misleading at best. The pintle gets clogged from time to time. I lose some flow based on test results off a test bench when comparing the before and the after flow rate. Kinda why I either test on a bench or forget it. I had another car pick up 1.5 mpg after cleaning the injectors. Before the cleaning, the car "runs good" too.

In your case, do the basics first. Test plug wires for leaks, cap and rotor, plugs. After that, fuel pressure. After that, check and see if the ECM sees the same temperature as an infra red thermometer on the ECT sensor.

Either way, the injectors are old and will have some clogging for sure. So, for the cost of cleaning and testing, why not get a set already done and toss the multecs away? Sooner or later they will be eaten up by the ethanol. If they are not Multecs and are stock size, might as well get a cleaned and tested set.

Last edited by aklim; May 1, 2017 at 12:58 AM.

May 1, 2017 | 08:23 AM

#32

81c3

Le Mans Master

Joined: Dec 2005

Posts: 8,552

Likes: 935

From: Communist Colorado

Quote:

Originally Posted by aklim

Either way, the injectors are old and will have some clogging for sure. So, for the cost of cleaning and testing, why not get a set already done and toss the multecs away? Sooner or later they will be eaten up by the ethanol.

Kind of my thinking as well... I might just start gathering up tune up parts, injectors and the gaskets to get ready for the job... just get it all done at once.

May 1, 2017 | 08:38 AM

#33

Joe C

Race Director

Joined: Aug 2000

Posts: 11,470

Likes: 763

Quote:

Originally Posted by 81c3

Kind of my thinking as well... I might just start gathering up tune up parts, injectors and the gaskets to get ready for the job... just get it all done at once.

if you're looking to upgrade to boschIII's (third design), it's probably about the same price buying a cleaned/rebuilt, replacement set vs having yours cleaned and tested. seems to me, cleaning and testing is about $22 per injector. that times 8, with two way shipping. compare the overall cost to a replacement set. personally, I'd just buy another set. go to FIC on-line or give Jon a call -