helping economy--going to order afr's--few ?'s
09-24-2001, 11:08 AM
#1
Member
Thread Starter
Join Date: Sep 2001
Location: minn
Posts: 175
Received 0 Likes
on
0 Posts
Car: 1990 formula
Engine: 350 tpi supercharged
Transmission: 700 r4
helping economy--going to order afr's--few ?'s
going to order next week or sooner if i figure out these ?'s
1-plug angle-i have a l98 with slp headers do i want the l98 angle plug version or the straight or angle style?
2-i assume i want the 68cc chambers over the 76cc type?
3-running tpi i have read in other posts that 190's are the largest port thet will seal up properly--anyone verify this?
4- are there any options i should add to the heads when i order?
anything else i'm missing?
thanks for your help.
the car is a 1990 formula 350 with slp headers and catback duel cats,paxton sc 6lb boost,edelbrock tpi manifold,asm ltr,s,and a ported plenum.
------------------
350 tpi,paxton sc,slp exaust@headers
1-plug angle-i have a l98 with slp headers do i want the l98 angle plug version or the straight or angle style?
2-i assume i want the 68cc chambers over the 76cc type?
3-running tpi i have read in other posts that 190's are the largest port thet will seal up properly--anyone verify this?
4- are there any options i should add to the heads when i order?
anything else i'm missing?
thanks for your help.
the car is a 1990 formula 350 with slp headers and catback duel cats,paxton sc 6lb boost,edelbrock tpi manifold,asm ltr,s,and a ported plenum.
------------------
350 tpi,paxton sc,slp exaust@headers
09-24-2001, 01:21 PM
#2
Supreme Member
iTrader: (7)
Join Date: Oct 2000
Location: Orange County,NY
Posts: 2,112
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1982 Z28
Engine: 355
Transmission: T56
Axle/Gears: 12 Bolt
1.Go with straight plug..i have heard that SLP's do not fit with angle,way to tight.I used straight AFR's with my SLP's with no clearance issues.
2.Yes.68cc, even look into 64cc for a little more compression,but watch it with your charger.
3.Yes.190's are the largest that will seal up to a TPI intake,they still flow enough air,beleive me.
4.Just have them match the springs to what is recommended for your camshaft.
Otherwise you are in good shape,good luck.
------------------
1982 Z28:355,4 Speed,Lots of bolt ons
2.Yes.68cc, even look into 64cc for a little more compression,but watch it with your charger.
3.Yes.190's are the largest that will seal up to a TPI intake,they still flow enough air,beleive me.
4.Just have them match the springs to what is recommended for your camshaft.
Otherwise you are in good shape,good luck.
------------------
1982 Z28:355,4 Speed,Lots of bolt ons
09-25-2001, 10:10 AM
#3
Member
Thread Starter
Join Date: Sep 2001
Location: minn
Posts: 175
Received 0 Likes
on
0 Posts
Car: 1990 formula
Engine: 350 tpi supercharged
Transmission: 700 r4
called afr this morningand they said to go with the l98 angle to clear the headers.anyone else with info on this?
i was also thinking that i should get the heads milled to the corvette chamber size at 58cc as i only am running 6 psi boot and the same supercharger kit as mine is availible on a vette so i would assume it would be ok?
they also saidthat the 195's wont work on a tpi ports too tall this seems to be false according to my search-should i go with the 190's as they recommend,this car is a daily driver not a all out quarter mile cruser.
thanks
[This message has been edited by icecold (edited September 25, 2001).]
i was also thinking that i should get the heads milled to the corvette chamber size at 58cc as i only am running 6 psi boot and the same supercharger kit as mine is availible on a vette so i would assume it would be ok?
they also saidthat the 195's wont work on a tpi ports too tall this seems to be false according to my search-should i go with the 190's as they recommend,this car is a daily driver not a all out quarter mile cruser.
thanks
[This message has been edited by icecold (edited September 25, 2001).]
09-25-2001, 10:47 AM
#4
Supreme Member
Join Date: Sep 1999
Location: Manassas VA
Posts: 3,197
Likes: 0
Received 6 Likes
on
5 Posts
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
As for the plug angle, TRAXION has the L98 angle plug AFR190s and plug access is a breeze.
As for the port entry, IIRC 190s and 195s use the same casting, the 195 just gets some extra porting and is matched to a larger gasket. With the horrible design of the TPI base i don't find it hard to believe that it doens't match right with an enlarged head intake port.
------------------
Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
As for the port entry, IIRC 190s and 195s use the same casting, the 195 just gets some extra porting and is matched to a larger gasket. With the horrible design of the TPI base i don't find it hard to believe that it doens't match right with an enlarged head intake port.
------------------
Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
Thread
Thread Starter
Forum
Replies
Last Post