TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Anyone know what kind of injectors these are?

Thread Tools
 
Search this Thread
 
Old 12-21-2009, 12:53 PM
  #1  
Supreme Member

Thread Starter
iTrader: (25)
 
Twin_Turbo's Avatar
 
Join Date: Jun 2000
Location: Enschede, Netherlands
Posts: 5,357
Received 42 Likes on 33 Posts
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Anyone know what kind of injectors these are?





They almost look like lucas units, I don't think they are GM chimney style ones but not sure. Anyone know for sure I want to know how much #/hr they are and without knowing what they are the numbers make no sense.
Old 12-21-2009, 12:57 PM
  #2  
Senior Member

iTrader: (2)
 
battman's Avatar
 
Join Date: May 2003
Location: Huntsville, AL
Posts: 539
Likes: 0
Received 2 Likes on 2 Posts
Car: 87 GTA, 88 GTA, 92 TA, 72 RS SS
Engine: 350, 350, 305, 396
Transmission: T56, 700r4, 700r4, T56
Axle/Gears: 3.42, 3.23, 3.23, 3.73
Re: Anyone know what kind of injectors these are?

Post any number found on them, maybe that will help. I will agree, the tips look like Lucas.
Old 12-21-2009, 01:10 PM
  #3  
Supreme Member

Thread Starter
iTrader: (25)
 
Twin_Turbo's Avatar
 
Join Date: Jun 2000
Location: Enschede, Netherlands
Posts: 5,357
Received 42 Likes on 33 Posts
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Anyone know what kind of injectors these are?

there was only a couple of numbers on them, 47 and 1a but I just now saw in the pic that there's a longer number on it. Didn't see it before, will have to note that at a later date. It looks like it says 6405309
Old 12-21-2009, 01:22 PM
  #4  
Supreme Member

Thread Starter
iTrader: (25)
 
Twin_Turbo's Avatar
 
Join Date: Jun 2000
Location: Enschede, Netherlands
Posts: 5,357
Received 42 Likes on 33 Posts
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Anyone know what kind of injectors these are?

Oh no....looks like I was right, they are almost 99% certain lucas chimney style. Someone in the UK must have put them in, they're all about lucas...the prince of darkness. Can't be much worse than all the sh!tty Rochester/multec ones. They ohm out perfectly cold & hot but the car gets crappy MPG so I was worried they're leaking but they're not (pressurized the rail) now I have to figure out how many # they are. Probably larger than stock 22s.

Looks like #19 on this page
http://www.injectorcleaning.co.uk/injtop.htm


GM / SAAB
CHIMNEY STYLE ALUMINIUM PINTLE CAP
Old 12-21-2009, 07:57 PM
  #5  
Guest
Guest
 
Posts: n/a
Re: Anyone know what kind of injectors these are?

Those look like factory Rochester injectors to me, either 87 or 88.
Old 12-21-2009, 08:08 PM
  #6  
Supreme Member

Thread Starter
iTrader: (25)
 
Twin_Turbo's Avatar
 
Join Date: Jun 2000
Location: Enschede, Netherlands
Posts: 5,357
Received 42 Likes on 33 Posts
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Anyone know what kind of injectors these are?

The rocherster/multecs have a smooth body like this:



I have plenty of those, all the vettes (L98 & LT1) and camaros (L98 & LB9) here have those, except my 87 has these funky ones.
Old 12-21-2009, 10:11 PM
  #7  
Guest
Guest
 
Posts: n/a
Re: Anyone know what kind of injectors these are?

Those are the multecs.

I have had a couple sets of the ones you posted first, they are OE. I'll bet if you look closely at them (above where the part number is on the side) you'll see the RP symbol.
Old 12-22-2009, 02:56 AM
  #8  
Supreme Member

Thread Starter
iTrader: (25)
 
Twin_Turbo's Avatar
 
Join Date: Jun 2000
Location: Enschede, Netherlands
Posts: 5,357
Received 42 Likes on 33 Posts
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Anyone know what kind of injectors these are?

No, there's no RP symbol on them.
Old 12-22-2009, 10:19 AM
  #9  
Junior Member

 
Shadow's Avatar
 
Join Date: Sep 1999
Location: Michigan
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 GTA Notchback WS6
Engine: 350 with a SuperRam
Transmission: 700R4
Re: Anyone know what kind of injectors these are?

Madmax is correct. What you have are Rochester Products injectors. They were installed in 1987 and 1988 L98's. The part number on them is 5235302 and they were factory rated at 22 lb/hr. They were not manufactured by Lucas.
Old 12-22-2009, 01:21 PM
  #10  
Supreme Member

Thread Starter
iTrader: (25)
 
Twin_Turbo's Avatar
 
Join Date: Jun 2000
Location: Enschede, Netherlands
Posts: 5,357
Received 42 Likes on 33 Posts
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Anyone know what kind of injectors these are?

You guys were right, I got one here, cleaned it off a bit and it's the rochester 5235302

Last edited by Twin_Turbo; 12-22-2009 at 01:32 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
New2Chevy
Engine/Drivetrain/Suspension Parts for Sale
2
09-28-2015 12:35 AM
webeeZ28
Tech / General Engine
12
09-14-2015 12:00 PM
Blue419
Tech / General Engine
3
09-10-2015 01:03 PM
Ranbo108
Tech / General Engine
14
09-09-2015 12:20 PM
TheExaminer
Body
11
09-06-2015 11:40 PM



Quick Reply: Anyone know what kind of injectors these are?



All times are GMT -5. The time now is 03:31 AM.