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

Experience and/or thoughts concerning TPIS/AFR L98 Heads

Thread Tools
 
Search this Thread
 
Old 06-14-2007, 12:19 AM
  #1  
Member
Thread Starter
 
Penix's Avatar
 
Join Date: Dec 2002
Location: Concord, CA, United States of America
Posts: 102
Likes: 0
Received 0 Likes on 0 Posts
Car: 1979 Camaro Sport Coupe
Engine: 350 LM1 with 083 2.02/1.60 heads
Transmission: TH350, soon to be 2004R
Axle/Gears: 2.41, soon to be 3.42
Experience and/or thoughts concerning TPIS/AFR L98 Heads

I wanna know if any of you have used these and for those of you who have, what did you think of them?

Thanks Guys!

Joel
Old 06-14-2007, 07:52 AM
  #2  
Supreme Member

iTrader: (5)
 
Viprklr's Avatar
 
Join Date: Feb 2002
Location: N. Illinois
Posts: 3,461
Likes: 0
Received 2 Likes on 2 Posts
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

I have the AFR's. Can't really tell you too much at this point since I haven't driven the car yet but they shore are purty.
That aside, both of my AFR's weigh in at just 3 pounds more that just 1 of my stockers. All fully assembled.
Old 06-15-2007, 12:45 AM
  #3  
Member
Thread Starter
 
Penix's Avatar
 
Join Date: Dec 2002
Location: Concord, CA, United States of America
Posts: 102
Likes: 0
Received 0 Likes on 0 Posts
Car: 1979 Camaro Sport Coupe
Engine: 350 LM1 with 083 2.02/1.60 heads
Transmission: TH350, soon to be 2004R
Axle/Gears: 2.41, soon to be 3.42
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Are those just the regular AFR's or the TPIS/AFR's? There is a difference.
Old 06-15-2007, 05:48 AM
  #4  
Supreme Member

iTrader: (5)
 
Viprklr's Avatar
 
Join Date: Feb 2002
Location: N. Illinois
Posts: 3,461
Likes: 0
Received 2 Likes on 2 Posts
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Didn't know there was a difference. I have the AFR Eliminators.
Old 06-16-2007, 08:22 PM
  #5  
Member
Thread Starter
 
Penix's Avatar
 
Join Date: Dec 2002
Location: Concord, CA, United States of America
Posts: 102
Likes: 0
Received 0 Likes on 0 Posts
Car: 1979 Camaro Sport Coupe
Engine: 350 LM1 with 083 2.02/1.60 heads
Transmission: TH350, soon to be 2004R
Axle/Gears: 2.41, soon to be 3.42
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Check them out here:
http://www.tpis.com/index.php?module...AFR+Cyl.+Heads
Old 06-17-2007, 12:11 AM
  #6  
Senior Member
 
scribbles's Avatar
 
Join Date: Aug 2005
Location: California, Sacrameto
Posts: 855
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 gta
Engine: 350 tpi
Transmission: 700r4
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

wow those are expensive, arent normal afr's like $1,400? How much more power are they supost to make. Normal afr's are good for 60-70 hp right?
Old 06-18-2007, 11:25 AM
  #7  
Guest
Guest
 
Posts: n/a
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

No flow numbers, waste of time.
I personally wouldnt buy anything from them, overpriced.
Old 06-19-2007, 06:08 AM
  #8  
Supreme Member

iTrader: (5)
 
Viprklr's Avatar
 
Join Date: Feb 2002
Location: N. Illinois
Posts: 3,461
Likes: 0
Received 2 Likes on 2 Posts
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Yeah. Anything TPi$.
Old 06-19-2007, 07:46 AM
  #9  
Moderator

iTrader: (3)
 
Abubaca's Avatar
 
Join Date: Feb 2001
Location: JAMESTOWN, NC
Posts: 8,369
Received 348 Likes on 275 Posts
Car: 1988 Iroc
Engine: L98 350
Transmission: 700R4
Axle/Gears: Hawks 8.8 - 3.73
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

I can't speak specifically about those heads, but I'm leary of anything from TPIS. They do sell quality, but a lot of times it's someone elses rebadged stuff, or just plain overpriced.

That being said, I'm sure they're GREAT heads.
Old 06-20-2007, 04:50 PM
  #10  
Senior Member
iTrader: (1)
 
3rdgenZ's Avatar
 
Join Date: Apr 2006
Location: south Louisiana
Posts: 562
Likes: 0
Received 0 Likes on 0 Posts
Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

i think you'd be better off buying some 180cc AFR comp heads than those. thats a lot of money. for the money i doubt that there THAT much better.
Old 06-20-2007, 11:06 PM
  #11  
Member
Thread Starter
 
Penix's Avatar
 
Join Date: Dec 2002
Location: Concord, CA, United States of America
Posts: 102
Likes: 0
Received 0 Likes on 0 Posts
Car: 1979 Camaro Sport Coupe
Engine: 350 LM1 with 083 2.02/1.60 heads
Transmission: TH350, soon to be 2004R
Axle/Gears: 2.41, soon to be 3.42
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

I can get a set for just under $1800 shipped from a guy on the East Coast who bought them for his Corvette but wrecked the car before he got a chance to install them.

So it sounds like noone has experience with this exact set of heads, is this the case?
Old 06-21-2007, 05:32 PM
  #12  
Member
 
shocker89bird's Avatar
 
Join Date: Jan 2007
Location: Barrington, Il
Posts: 206
Likes: 0
Received 0 Likes on 0 Posts
Car: 89 ws6
Engine: 355 afr195, hsr,gmpp cam, hs rr,
Transmission: t-5
Axle/Gears: 3.08
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Originally Posted by Penix
I can get a set for just under $1800 shipped from a guy on the East Coast who bought them for his Corvette but wrecked the car before he got a chance to install them.

So it sounds like noone has experience with this exact set of heads, is this the case?
No I don't have experience with those heads either. I agree with everyone else as far as to go witha good set of AFR or Canfield heads for the money. You can't beeat their flow numbers and for under 1500 you will never be happier.

Not to totally bash TPIS but their clims for those heads are contrary to popular believe that those heads are worth spending money on due to flow reasons. There is not huge amounts of port room even on the aluminum corvette heads let alone the crappy cast iron heads. The stock intake runner cc's on the vette heads was 163 if I rememeber correctly. They had to do lots of port work to try to open them up and they have an inferrior combustion chamber design. The money would be better spent on a set of other heads.
Old 06-21-2007, 05:37 PM
  #13  
Guest
Guest
 
Posts: n/a
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

He said they were AFR heads that TPIS ported.
They probably flow fine, knowing TPIS but I surely wouldnt pay any premium for it. Do you know if they are the new Eliminator design or not? Might make more sense to put that $1800 towards the new AFR design.
Old 06-21-2007, 06:05 PM
  #14  
Supreme Member

 
D's89IROCZ's Avatar
 
Join Date: Jan 2003
Location: Ontario, Canada
Posts: 1,931
Likes: 0
Received 1 Like on 1 Post
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Yeah if they already got the crazy AFR port job to them ...what can TPiS offer in respects to gains .... doubt it's worth it at all
Old 06-26-2007, 12:30 AM
  #15  
Member
Thread Starter
 
Penix's Avatar
 
Join Date: Dec 2002
Location: Concord, CA, United States of America
Posts: 102
Likes: 0
Received 0 Likes on 0 Posts
Car: 1979 Camaro Sport Coupe
Engine: 350 LM1 with 083 2.02/1.60 heads
Transmission: TH350, soon to be 2004R
Axle/Gears: 2.41, soon to be 3.42
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Okay, so I found out definitively that the TPiS customized AFR 180cc heads do not flow as well as AFR's Competition Package 180cc heads. So to put an end to this post, these heads ARE NOT worth the money! Even if you can get them for $1800, they do not compare to the AFR C/P 180cc heads, which are cheaper too by the way!
Old 06-26-2007, 09:59 AM
  #16  
Member
 
HD4mula's Avatar
 
Join Date: Aug 2004
Location: FL
Posts: 151
Likes: 0
Received 0 Likes on 0 Posts
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

I got 304rwhp/366rwtq with the Eliminator 180s and bigger intake. Look details here:
https://www.thirdgen.org/forums/tpi/...-tpi-dyno.html
Old 06-26-2007, 07:42 PM
  #17  
Senior Member
 
Rob Wade's Avatar
 
Join Date: May 2005
Location: Windsor Ontario Canada
Posts: 777
Likes: 0
Received 0 Likes on 0 Posts
Car: 89 jaguar xjs convertable
Engine: 89 L98 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.23 dana 44
Re: Experience and/or thoughts concerning TPIS/AFR L98 Heads

Originally Posted by Penix
So it sounds like noone has experience with this exact set of heads, is this the case?
No one has experience because no one wants to pay that kind of money for heads you can buy elseware. As said earlier.....mostly just rebadged stuff.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lt500r55
Tech / General Engine
6
09-01-2021 01:30 PM
CarGuyDennis
Organized Drag Racing and Autocross
137
12-06-2016 11:02 PM
CRFred
Engine/Drivetrain/Suspension Parts for Sale
9
02-07-2016 11:39 PM
gta90
TPI
40
09-15-2015 04:00 PM
anesthes
Tech / General Engine
5
08-08-2015 09:37 PM



Quick Reply: Experience and/or thoughts concerning TPIS/AFR L98 Heads



All times are GMT -5. The time now is 10:01 PM.