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Dorman ls2 intake?

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Old 03-17-2017, 06:08 AM   #221
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The one facing up is not a port. It's a pilot hole for a supplied bolt to anchor down the map sensor if you chose to run it in the back of the intake.
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Old 03-17-2017, 07:11 AM   #222
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I will flatten my steam tubes and see if that would suffice. I'm in the process of tearing it down and doing a head/cam swap. It may be a few weeks before I will be able to test fit. Are you running a HVAC system on your car? I noticed that there isn't a small port on the back of the intake. May drill and tap a port or T off of the brake booster port.
I didnt realize this before. So thats another issue. Easily remedied but still its another issue I overlooked.
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Old 03-17-2017, 03:32 PM   #223
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Hopefully Ill have my intake back this weekend. Im going to tap the back of it and add a fitting for the hvac system. Anyone know what size the hvac lines are? Also Ill work on flattening the steam tubes to clear this intake. I dont think itll take much. It looks identical to a fast 92 underneath.
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Old 03-18-2017, 09:50 PM   #224
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Just to update. Got my intake back today with the runners smoothed out. Im going to drill and tap the intake tomorrow to add a 1/4 nipple for the hvac system. Ill report back on that.

Someone will need to make a write up on how to install these on a 4th gen. Its not a bolt on part and will require some modification. Ill gladly help with what info I have so far. Hope to have it on and running by next weekend.
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Old 03-20-2017, 12:35 PM   #225
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Just to update. Got my intake back today with the runners smoothed out. Im going to drill and tap the intake tomorrow to add a 1/4 nipple for the hvac system. Ill report back on that.

Someone will need to make a write up on how to install these on a 4th gen. Its not a bolt on part and will require some modification. Ill gladly help with what info I have so far. Hope to have it on and running by next weekend.
Would you post pics of your smoothed out runners? It was my first time porting my intake and just curious how yours came out. My heads/cam parts will deliver tomorrow so I won't be to far behind your install date.
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Old 03-20-2017, 01:34 PM   #226
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Just add a T and just drill for the map sensor

use one T for the hvac and brake booster.




http://m.ebay.com/itm/2-1-2-to-1-4-Single-Hose-Barb-Reduction-Tee-Connector-Fittings-HHO-Air-line-/262011026710?hash=item3d0112fd16%3Ag%3AZvIAAOSw%7E gRV04Yi&_trkparms=pageci%253A07d8a52b-0d9b-11e7-8efe-74dbd180d287%257Cparentrq%253Aecfa606615a0a6a8f3e4 474bfffaf66c%257Ciid%253A11
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Old 03-21-2017, 12:59 PM   #227
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There's a port for the brake booster. May just T into that port.
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Old 03-21-2017, 01:42 PM   #228
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So if you want to have the map sensor in the front, from the pics it looks like this does not have a sensor port in the same location as the actual ls2 intake (which is front pass. side), but in the cover for the EGR hole there's a port (?) that looks like it would have to be drilled out?
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Old 03-22-2017, 09:16 AM   #229
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Quote:
Originally Posted by LaBLKv6Z View Post
Would you post pics of your smoothed out runners? It was my first time porting my intake and just curious how yours came out. My heads/cam parts will deliver tomorrow so I won't be to far behind your install date.
I will post pics as soon as I find time. I have a uncompleted rough draft of a write up but I am not done. I still am dealing with fitment issues.
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Old 03-22-2017, 10:31 AM   #230
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Has anyone found out how much rwhp and tq you gain from putting this on a stock ls1 pre ls6 intake?
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Old 03-25-2017, 09:07 AM   #231
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I have the intake on and car is running smoothly. So far so good. I will hopefully post a write up today for those interested. Someone asked for pics of my smoothed out intake runners so here you go.
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Old 03-25-2017, 09:23 AM   #232
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Quote:
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Hopefully Ill have my intake back this weekend. Im going to tap the back of it and add a fitting for the hvac system. Anyone know what size the hvac lines are? Also Ill work on flattening the steam tubes to clear this intake. I dont think itll take much. It looks identical to a fast 92 underneath.
4 corner steam vent tube didn't fit under my fast, I flattened them out and had them touching the vally cover and still was a no go.
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Old 03-25-2017, 01:33 PM   #233
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4 corner steam vent tube didn't fit under my fast, I flattened them out and had them touching the vally cover and still was a no go.
Mine did fit but it was flattened quite a bit. I just found out its leaking too. So Ill see whats up with that when I tear it all back apart.
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Old 04-20-2017, 01:53 PM   #234
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Dyno'd my car yesterday, can't really factor just the intake manifold with my gains but I'm sure it helped.

Baseline 334/363
with TSP 1 7/8" longtubes, SLP lid, SLP loudmouth II, Frost tune.

stock 853 heads, stock cam, ls1 intake manifold, tb, Strange S60, 4.10 gears, T56

Current 450/419
with TSP 1 7/8" longtubes, SLP lid, SE trueduals, PRC stage 2.5 heads, MS3 cam, Fast 36 injectors, Dorman LS2 intake manifold, Warr 92mm tb, same rear end and trans. Frost canned tune (safe rich tune)

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Old 04-21-2017, 04:20 PM   #235
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The results look pretty solid, thanks for posting them.

Did you do any porting/runner cleanup on the intake, or is it box stock?
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Old 04-23-2017, 05:29 AM   #236
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Good results for sure. I hope I can come close to that with a Tick torquemax stage 2 and hand ported heads. Otherwise similiar mods minus the s60.

Also curious if the intake runners was touched up or not. If not its definitely worth doing as the two piece design doesnt mate up real well imo.
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Old 04-24-2017, 11:38 AM   #237
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I removed the "notches" in the ports but that was it. I'll post by after it gets dyno tuned and show some time slips after this weekend.
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