[4thCamaro]

I have read the threads with the research between the MSD and Hi-Ram. I have a bolt on car and will probably remain bolt on until Next year. I have a non ported MSD currently. Here are my questions:

Is the Hi-Ram worth it on a true bolt on only car?
Should I just port the MSD and pair it with another intake?
What pairings have you tried or observed and what worked?

Also when I look at Hi-Rams online for sale I see two options, which one would I need. I see one with the EFI port and one without.

I want to hear opinions as well as people's experience in this matter. So everyone weigh in.

[4thCamaro]

Thank you all for the help ����

[Chrome383Z]

If you want to squeeze out every available horse go high ram. Might lose some midrange. Are you willing to cut your hood? High ram requires that. I’m not so I’m going to port my MSD.

I don’t know what you mean by intake pairing. The MSD/High ram is the intake. Maybe you mean throttle body? I currently have a 95mm but going ported 103 when I send my MSD out to be ported.

[s346k]

on this site alone, there is ample material pertaining to this topic. hi ram requires cowl cutting and a new hood or cut the stock one. the fast cars are all using hi rams. i have a ported msd and a ported hi ram both. i'm still undecided on cutting the car. it's hard for me to justify a hi ram if i can't get an otr cai on it.

[laynlo15]

I have not run a High Ram on an Lt1. I have run a Mamo ported Msd on my C7. I had a ported Lt1 intake I took off and we did lose some low end torque and slowed my 60ft times down a couple hundreds but I did see a higher mph in the 1/8 and 1/4 mile but no Et gains until we started tuning on the trans. Personally for a street car you may race a little a ported MSD is a better set up. You might even look into the BTR Trinity, some of the NA guys are running that now and its much lower profile and should go under the hood and don't think you'll have to cut the cowl either.

[17camaroSS]

Originally Posted by s346k

on this site alone, there is ample material pertaining to this topic. hi ram requires cowl cutting and a new hood or cut the stock one. the fast cars are all using hi rams. i have a ported msd and a ported hi ram both. i'm still undecided on cutting the car. it's hard for me to justify a hi ram if i can't get an otr cai on it.

That’s what most OTR setups are built for.

[BlackbeastSS2]

Originally Posted by 17camaroSS

That’s what most OTR setups are built for.

I did the high ram in my 2016, one thing some people don’t think of are they keeping the car forever or selling it at some point. It’s takes some work and new parts after cutting into the firewall. If you don’t get it back to stock condition then it will fail a safety inspection and a dealership will not take it in for a trade in.

[s346k]

Originally Posted by 17camaroSS

That’s what most OTR setups are built for.

it sucks there is so little room between the rad and hood latch. i think every car would benefit from an otr setup.

my car drops 5-6 kpa, id like to see 1-2 at most. i got one more thing to try on this rotofab before i get serious about something else. i honestly don't see much gain to be had at this point, i feel like the car is at its limit for the mods, but im gonna try anyway.

[laynlo15]

I tried an OTR back in the G8GT days before I went to the first Roto Fab I had. The problem back then was getting water into the intake with the OTR. Mine got wet several times when we got caught out in some really bad rain storms. Went to the RF and never looked back.

[s346k]

i did an otr chrs1313 setup on one of my ls1 cars. it worked great. i did not have issues with water. id love to get a haltech c6z air intake setup on this 6g.

[17camaroSS]

Originally Posted by s346k

i did an otr chrs1313 setup on one of my ls1 cars. it worked great. i did not have issues with water. id love to get a haltech c6z air intake setup on this 6g.

I had one as well and even made that same OTR from Chris to work on my 6th gen and was able to get the hood latch. I gained 3mph on my bolt on setup with it.

[4thCamaro]

Originally Posted by Chrome383Z

If you want to squeeze out every available horse go high ram. Might lose some midrange. Are you willing to cut your hood? High ram requires that. I’m not so I’m going to port my MSD.

I don’t know what you mean by intake pairing. The MSD/High ram is the intake. Maybe you mean throttle body? I currently have a 95mm but going ported 103 when I send my MSD out to be ported.

What i mean is the CAI when i say intake and manifold pairings. CAI and Intake Manifold.


You see scrolling down another individual spoke on how they only wanted to go hi ram if they could put a OTR on it. I'm thinking the same way

[Spaceme1117]

What is the intended use of your car?

If street and strip, I think you already have the best intake with the MSD. Just could have it ported and add a larger throttle body for a little more bump in power.

As for the CAI, I would go with the Rotofab. I have it and it's excellent.

As far as your other bolt on mods, what do you have?

E85 sensor and long tube headers really add a lot of power on the LT1. E85 is typically good for at least 30 hp.

Long tubes help at all RPM's and gain about 15 to 20 peak HP/TQ. But the biggest benefit of long tubes, is they extend the RPM range significantly and allow HP/TQ to not drop off as quick. Its actually quite shocking how significant the extension is. Actually looks like a cam change on a 4th gen LS engine.

[17camaroSS]

Originally Posted by BlackbeastSS2

I did the high ram in my 2016, one thing some people don’t think of are they keeping the car forever or selling it at some point. It’s takes some work and new parts after cutting into the firewall. If you don’t get it back to stock condition then it will fail a safety inspection and a dealership will not take it in for a trade in.

I know what it takes as I’ve had a hi ram on my car since the first week I bought it. But you can pull the wiper cowl off and replace it without and issue. Doesn’t take much at all as you’re not cutting into the firewall, just the plastics and metal cowl.