[PICS] Gen V intake on my Gen IV ACR [PICS]

[Shooter]

He had the car for 2 weeks, they were making progress and got all the information that they needed. I sold him my stock computer and last I talked to him they were working on it. Hopefully soon guys.

I am really looking forward to this.

[FrgMstr]

30 more miles on the car with some fairly hard driving. No issues whatsoever, ran incredibly well. Pulling like a freight train.

[DreadLox]

30 more miles on the car with some fairly hard driving. No issues whatsoever, ran incredibly well. Pulling like a freight train.

Awesome, so you guys are obviously noticing a difference. I may order the ACR-X oil catch can. Glad to hear things are going well. The install/swap seems pretty straight forward. Other than the time consuming portion of cutting the torque limiters.

[FLATOUT]

30 more miles on the car with some fairly hard driving. No issues whatsoever, ran incredibly well. Pulling like a freight train.

Bad Ass man, I knew I wasn't crazy lol Pics up a great deal through the meat of the power band. Anyone that focuses on peak numbers with this setup is missing the point.

[FrgMstr]

One thing I will say that surprised me. I torqued all the bolts to 106 inch pounds. Went back after install and re-torqued to 106 inch pounds. Took the car for the first drive of about 10 miles. Brought it home and let it sit till morning. Going out this morning I re-torqued the manifold bolts again. The bolts took almost a FULL TURN to get back to 106. Given this is not an aluminum part I guess this is to be expected, but it still surprised me that a heat cycle had that much impact on the mating material. So a word to the wise. Make SURE you re-torque your bolts after you heat cycle the manifold for the first time. Given that I am not sure I would suggest going out to make a long drive far from home on your first outing. I am going to check the torque again in the morning.

[FLATOUT]

I noticed this as well and I continued to check the torque of all of them until they all "settled". This took a few heat cylces as well.

One thing I will say that surprised me. I torqued all the bolts to 106 inch pounds. Went back after install and re-torqued to 106 inch pounds. Took the car for the first drive of about 10 miles. Brought it home and let it sit till morning. Going out this morning I re-torqued the manifold bolts again. The bolts took almost a FULL TURN to get back to 106. Given this is not an aluminum part I guess this is to be expected, but it still surprised me that a heat cycle had that much impact on the mating material. So a word to the wise. Make SURE you re-torque your bolts after you heat cycle the manifold for the first time. Given that I am not sure I would suggest going out to make a long drive far from home on your first outing. I am going to check the torque again in the morning.

[DreadLox]

One thing I will say that surprised me. I torqued all the bolts to 106 inch pounds. Went back after install and re-torqued to 106 inch pounds. Took the car for the first drive of about 10 miles. Brought it home and let it sit till morning. Going out this morning I re-torqued the manifold bolts again. The bolts took almost a FULL TURN to get back to 106. Given this is not an aluminum part I guess this is to be expected, but it still surprised me that a heat cycle had that much impact on the mating material. So a word to the wise. Make SURE you re-torque your bolts after you heat cycle the manifold for the first time. Given that I am not sure I would suggest going out to make a long drive far from home on your first outing. I am going to check the torque again in the morning.

Hmmm... Where I'm headed to do my swap is about an hour drive.... I'd assume that would be ok as long as I check the torque as soon as I get home, worse case I could make a pit stop on the way. I'm glad you guys said something about this.

[SSGNRDZ_28]

Curious if the compression limiters extending beyond the manifold on the gen V would help alleviate this torque issue? Perhaps this is another function they serve?

[Back In Black]

Curious if the compression limiters extending beyond the manifold on the gen V would help alleviate this torque issue? Perhaps this is another function they serve?

I was thinking the same thing. Kinda like the crush sleeve on a pinion gear.

[FrgMstr]

Hmmm... Where I'm headed to do my swap is about an hour drive.... I'd assume that would be ok as long as I check the torque as soon as I get home, worse case I could make a pit stop on the way. I'm glad you guys said something about this.

I would suggest you would be just fine. Long as you are not going hog wild on it.

Curious if the compression limiters extending beyond the manifold on the gen V would help alleviate this torque issue? Perhaps this is another function they serve?

I was thinking the same thing. Kinda like the crush sleeve on a pinion gear.

I am not so sure that these are not a sort of crush sleeve as I said a page or two back. I hand cut and trimmed mine at the same angle as the manifold facing. Probably about .25mm below the facing. I am going to re-torque in the morning and see how much thread these take again. Would be interesting to know exactly what the intake is made of and at what specification. I got the light out and looked for any cracking, and all was well. Certainly cracking around the attach points is what I am concerned with. I feel like I may have not wasted my time doing all that now.

I don't think it is anything to really worry about, since when you heat cycle a plastic you are going to get some extrusion happening. As FLATOUT said above, his finally "settled out" which makes sense. But it did surprise me when I re-torqued the first bolt and got nearly a full turn. It made me second guess at first if I had torqued that one properly. Just something to be aware of and know that follow-up, follow-up, and more follow-up is required if you do it yourself.

No leaks though and just drove it another 10 miles, all good.

[SSGNRDZ_28]

For sure a machined hole to receive the compression limiter would serve to keep everything aligned laterally as well as prevent crushing the intake and perhaps serve as a crush sleeve. The angled compression limiter as you have done FrgMstr would probably still allow everything to move and adjust slightly during heat cycles just because it isn’t necessarily holding anything in place laterally. Probably a combination of all of these things adds up to require the bolts to be tightened a few times as everything settles.

Too bad it is somewhat scary to machine the heads, especially while they are on the car, that would make the install a lot easier.

[IndyRon]

I'd be curious if the bolts backed out with the heat cycling or the intake just slightly deformed with the torque of the fasteners plus the heat.

[FLATOUT]

I'd be curious if the bolts backed out with the heat cycling or the intake just slightly deformed with the torque of the fasteners plus the heat.

I would be interested in adding a small washer to distribute the clamping force over a slightly larger area. Also would a small dab of locktite be helpful to keep anything from backing out?

[FrgMstr]

I would be interested in adding a small washer to distribute the clamping force over a slightly larger area. Also would a small dab of locktite be helpful to keep anything from backing out?

There was some blue material on the threads of my bolts. Not sure if anti-seize or thread locker. I don't think those backed out. I will put some marks on those with a sharpie tomorrow to see.

[Back In Black]

I would be interested in adding a small washer to distribute the clamping force over a slightly larger area. Also would a small dab of locktite be helpful to keep anything from backing out?

That or a star type lock washer. The next person to do this swap should mark the bolts if possible to see if they are indeed backing out.

Does anyone know if those "torque limiters" are a non-reusable part? Anyone have a service manual for a Gen V yet? If the manual says they need to be replaced if the manifold is removed then I think it's safe to assume they get crushed during install. They should be a torque and forget fastener.

EDIT: Just read FrgMstr's post. That blue material is indeed a thread locker. So all the manifold bolts had that on them?

[FLATOUT]

Yes they all have the blue thread locker on them.

That or a star type lock washer. The next person to do this swap should mark the bolts if possible to see if they are indeed backing out.

Does anyone know if those "torque limiters" are a non-reusable part? Anyone have a service manual for a Gen V yet? If the manual says they need to be replaced if the manifold is removed then I think it's safe to assume they get crushed during install. They should be a torque and forget fastener.

EDIT: Just read FrgMstr's post. That blue material is indeed a thread locker. So all the manifold bolts had that on them?

[Chorps]

I wonder if it's possible to make custom composite intake manifolds for Gen IVs and Vs.

http://www.racecar-engineering.com/a...dge-of-racing/

[SSGNRDZ_28]

I wonder if it's possible to make custom composite intake manifolds for Gen IVs and Vs.

http://www.racecar-engineering.com/a...dge-of-racing/

It would be possible but I suspect the R&D to get better performance would be staggering - CFD would be required. The cost of production would not be cheap either - you may be looking at a $2-$5000+ part depending on the material for a 3D printed (price is by material volume).

[Victxv10]

Is the new GenV intake a two piece like the GenIV or is it fused together into one. Just wondering what it looks like inside.

[Steve M]

Is the new GenV intake a two piece like the GenIV or is it fused together into one. Just wondering what it looks like inside.

Pretty sure it is all one piece.

[ACRucrazy]

It's fused together into 1, it can't be taken apart. The runners are longer than the G4.

[Steve M]

It's fused together into 1, it can't be taken apart. The runners are longer than the G4.

Has anyone measured both? You can tell from pics that they are longer, but how much longer?

[ACRucrazy]

I will see if I can get measurements tonight.

[FrgMstr]

Got 110 miles on the GenV intake without a single issue. There is no doubt in mind that the car is pulling better. I have an appointment to put it on the dyno tomorrow at 5pm. So I will have a solid before and after comparison on the GenV intake vs. Gen IV intake, both with Mopar PCM.

The bolts did not move at all today after about 40 miles on it during the drive. I did NOT re-torque these today. I am going to leave them as is. I do not want to over-torque these and cause issues. That said, I am going to keep an eye on these.

[IndyRon]

Is the new GenV intake a two piece like the GenIV or is it fused together into one. Just wondering what it looks like inside.

As said above, it is a fused 1 piece unit. I was hoping 2 piece prior to purchasing one and was planning on having it sent out to Mamo at FAST for port work as he is the best in the business in porting composite intakes for LSX cars but unfortunately that isn't going to be possible.