LS2 intake swap questions
LS2 intake swap questions Im building a 99 Formula as a second car/quick street car. Here is my engine build as we sit.
6.0 LQ4 block, stock crank
LS2 Vette Rods and pistons
217/224 EPS cam with matching springs, LS7 lifters and pushrods
Ported 317's
LS1 accessories
LS2 GTO intake/rails/injectors
Anyways, thats the basics. Im curious about a few things.
1. What coolant crossovers should I run with the LS2 intake? Its hot as hell here in Miami and Im keeping the AC.
2. Anything I really need to look out for when it comes to installing the PCV system or brake assist or whatnot?
3. Will a Gen3 5.3 Truck MAP sensor work with this intake?
4. I know these injectors (stock LS2 GTO) are a tad bit on the small side, but would they feed this motor? Or am I going to have to replace them? My experience tells me Im might start going static close to redline.
Thanks in Advance.
6.0 LQ4 block, stock crank
LS2 Vette Rods and pistons
217/224 EPS cam with matching springs, LS7 lifters and pushrods
Ported 317's
LS1 accessories
LS2 GTO intake/rails/injectors
Anyways, thats the basics. Im curious about a few things.
1. What coolant crossovers should I run with the LS2 intake? Its hot as hell here in Miami and Im keeping the AC.
2. Anything I really need to look out for when it comes to installing the PCV system or brake assist or whatnot?
3. Will a Gen3 5.3 Truck MAP sensor work with this intake?
4. I know these injectors (stock LS2 GTO) are a tad bit on the small side, but would they feed this motor? Or am I going to have to replace them? My experience tells me Im might start going static close to redline.
Thanks in Advance.
1) Don't know about which to use. I use hoses to nipples installed into heads.
2) Use a catch can on PCV side & an in-line fuel filter between TB & passenger side valve cover.
3) Don't know, if it is plug in type, as other LS intake MAP sensors are, it can work.. It also needs to be compatible w/ PCM you're using.
4) Try 'em & see. W/ that cam, I think they will work, but, on the high side, as you noted.
Agreed, a ported LS2 intake can be a very good intake. The key is to get the ridges in the runners level & smoothed out. The term ported is relative. Don't want to open the runner up, just smooth the nasty ridges in the runners (from the molds). Can do it @ home if you don't want to send it out.
2) Use a catch can on PCV side & an in-line fuel filter between TB & passenger side valve cover.
3) Don't know, if it is plug in type, as other LS intake MAP sensors are, it can work.. It also needs to be compatible w/ PCM you're using.
4) Try 'em & see. W/ that cam, I think they will work, but, on the high side, as you noted.
Agreed, a ported LS2 intake can be a very good intake. The key is to get the ridges in the runners level & smoothed out. The term ported is relative. Don't want to open the runner up, just smooth the nasty ridges in the runners (from the molds). Can do it @ home if you don't want to send it out.
1) Don't know about which to use. I use hoses to nipples installed into heads.
2) Use a catch can on PCV side & an in-line fuel filter between TB & passenger side valve cover.
3) Don't know, if it is plug in type, as other LS intake MAP sensors are, it can work.. It also needs to be compatible w/ PCM you're using.
4) Try 'em & see. W/ that cam, I think they will work, but, on the high side, as you noted.
Agreed, a ported LS2 intake can be a very good intake. The key is to get the ridges in the runners level & smoothed out. The term ported is relative. Don't want to open the runner up, just smooth the nasty ridges in the runners (from the molds). Can do it @ home if you don't want to send it out.
2) Use a catch can on PCV side & an in-line fuel filter between TB & passenger side valve cover.
3) Don't know, if it is plug in type, as other LS intake MAP sensors are, it can work.. It also needs to be compatible w/ PCM you're using.
4) Try 'em & see. W/ that cam, I think they will work, but, on the high side, as you noted.
Agreed, a ported LS2 intake can be a very good intake. The key is to get the ridges in the runners level & smoothed out. The term ported is relative. Don't want to open the runner up, just smooth the nasty ridges in the runners (from the molds). Can do it @ home if you don't want to send it out.
1. Ill check into using stock LS1 F-Body pieces then.
2. Any particular brand worth using?
3. I guess Ill just have to remove the other one from the intake and find out if it physically mounts then. It looks the same.
Ill take a look inside of it Monday when I get back to work where the engine is. Do I have to seperate the manifold to port it?
Thanks for taking the time to answer.
1. Ill check into using stock LS1 F-Body pieces then.
2. Any particular brand worth using?
3. I guess Ill just have to remove the other one from the intake and find out if it physically mounts then. It looks the same.
Ill take a look inside of it Monday when I get back to work where the engine is. Do I have to seperate the manifold to port it?
1. Ill check into using stock LS1 F-Body pieces then.
2. Any particular brand worth using?
3. I guess Ill just have to remove the other one from the intake and find out if it physically mounts then. It looks the same.
Ill take a look inside of it Monday when I get back to work where the engine is. Do I have to seperate the manifold to port it?
2) If it were me, I'd buy cheap. However, there are different versions. Some w/ internal check/PCV valves...etc. Do a search & then decide what's best for you.
Manifold:
No, just smooth out what you can reach. I have an LS2 cut open in order to flute from plenum the runners. It's been years & I still haven't been able to find a product that will properly hold the cut out base in tact under vacuum. Anyway, not necessary or recommended.
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