Future engine build
#1
Junior Member
Thread Starter
iTrader: (3)
Join Date: Jun 2014
Location: Chiefland, FL
Posts: 22
Likes: 0
Received 3 Likes
on
3 Posts
Car: 2011 Camaro 2SSRS w/ Procharger
Engine: 6.2 LS3
Transmission: M6 TR6060
Axle/Gears: 3.45
Future engine build
Hey all, I'm in the market of building a new motor soon. Essentially looking for a budget build, but I'm not sure where to go at this point. Right now I have a 1987 Trans Am GTA which is an original 305 tpi , 5 speed car. I will be keeping the 5 speed no matter where the build goes so keep that in mind.
First of all I'm not sure if I want to go 350 tpi, or 350 carb. I jumped the gun on some parts, so here is what I have for a potential build. Pro comp 190cc heads with 68cc chambers. A full tpi setup that I was looking into porting and siamesing, and a walbro/Racetronix 255lph fuel pump kit. My initial thought was that I wanted to stay tuned port, but my dilemma is this, from all of my research there IS NO PROM TUNE CAPABLE OF A 350 TPI 5 SPEED. (If there is please correct me, and point me in the direction of who can tune it for me).
Secondly, I'd like to keep the motor at a conservative 350 HP. (And I apologize, I have so many questions) what is a good cam duration? Something very streetable, as this is my daily driver. Cam recommendation for a 350 TPI, what about a 350 carb setup? I'm leaning towards a carberated build, so if anyone can point me in the right direction of cam, intake, and carb setup, it'd be awesome.
Thirdly, I know I seem very confused about my build, and it's because I am. I'm here basically because I want someone to extend some knowledge my way. I love the idea of driving a tpi and beating some new age muscle, and blowing people's minds. But I also like the simplicity of a carb build. Someone please she'd some light. And to battle your first comment, I have done endless searching on this subject, I just want some first hand experience answers.
First of all I'm not sure if I want to go 350 tpi, or 350 carb. I jumped the gun on some parts, so here is what I have for a potential build. Pro comp 190cc heads with 68cc chambers. A full tpi setup that I was looking into porting and siamesing, and a walbro/Racetronix 255lph fuel pump kit. My initial thought was that I wanted to stay tuned port, but my dilemma is this, from all of my research there IS NO PROM TUNE CAPABLE OF A 350 TPI 5 SPEED. (If there is please correct me, and point me in the direction of who can tune it for me).
Secondly, I'd like to keep the motor at a conservative 350 HP. (And I apologize, I have so many questions) what is a good cam duration? Something very streetable, as this is my daily driver. Cam recommendation for a 350 TPI, what about a 350 carb setup? I'm leaning towards a carberated build, so if anyone can point me in the right direction of cam, intake, and carb setup, it'd be awesome.
Thirdly, I know I seem very confused about my build, and it's because I am. I'm here basically because I want someone to extend some knowledge my way. I love the idea of driving a tpi and beating some new age muscle, and blowing people's minds. But I also like the simplicity of a carb build. Someone please she'd some light. And to battle your first comment, I have done endless searching on this subject, I just want some first hand experience answers.
#2
Supreme Member
Join Date: Apr 2013
Location: North Salt Lake
Posts: 1,353
Likes: 0
Received 1 Like
on
1 Post
Car: '86 Camaro, '94 Camaro, 3 others
Engine: LG4 ->L29, L32->LR4, L36, LG4, L31
Transmission: 700R-4, T5WC, 4L80E, SM465, 4L60E
Axle/Gears: 3.42, 3.23, WTB/WTT 2.93
Re: Future engine build
The 190 heads are a mismatch for a TPI 350, but separate from that, if you want a stock chip for a T5 behind a stock TPI 350, the '89-'91 'vette chip doesn't need the ZF so long as you keep a VSS. But in '88 guys were combining the LB9 chip with the L98 injectors and an AFPR.
#3
Junior Member
Thread Starter
iTrader: (3)
Join Date: Jun 2014
Location: Chiefland, FL
Posts: 22
Likes: 0
Received 3 Likes
on
3 Posts
Car: 2011 Camaro 2SSRS w/ Procharger
Engine: 6.2 LS3
Transmission: M6 TR6060
Axle/Gears: 3.45
Re: Future engine build
The 190 heads are a mismatch for a TPI 350, but separate from that, if you want a stock chip for a T5 behind a stock TPI 350, the '89-'91 'vette chip doesn't need the ZF so long as you keep a VSS. But in '88 guys were combining the LB9 chip with the L98 injectors and an AFPR.
#4
Supreme Member
iTrader: (13)
Join Date: Dec 2002
Location: Bowdon, GA.
Posts: 2,535
Likes: 0
Received 16 Likes
on
14 Posts
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Future engine build
For a carb setup.. Push compression up around 10:1 using 5cc flat top pistons and .015" gaskets.
218/230* @ .050" cam
Performer RPM intake
600-670 cfm carb
3.23-3.73 gears
Your pro comp heads
218/230* @ .050" cam
Performer RPM intake
600-670 cfm carb
3.23-3.73 gears
Your pro comp heads
#5
Junior Member
Thread Starter
iTrader: (3)
Join Date: Jun 2014
Location: Chiefland, FL
Posts: 22
Likes: 0
Received 3 Likes
on
3 Posts
Car: 2011 Camaro 2SSRS w/ Procharger
Engine: 6.2 LS3
Transmission: M6 TR6060
Axle/Gears: 3.45
Re: Future engine build
And should I use my walbro pump and a regulator? Or just run a mechanical pump?
#6
Supreme Member
iTrader: (13)
Join Date: Dec 2002
Location: Bowdon, GA.
Posts: 2,535
Likes: 0
Received 16 Likes
on
14 Posts
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Future engine build
Yes the 600 cfm holley will be perfect. If your walbro 255 is already installed use it and run a regulator on it. Easier than pulling that pump back out.
If it's not installed yet. I would sell it off and run a mechanical pump. Cheaper and much easier to replace than the in tank elec. one, plus will last many times longer before needing to be replaced.
If it's not installed yet. I would sell it off and run a mechanical pump. Cheaper and much easier to replace than the in tank elec. one, plus will last many times longer before needing to be replaced.
Thread
Thread Starter
Forum
Replies
Last Post