Fitting a boost gauge - LotusTalk - The Lotus Cars Community
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post #1 of 20 (permalink) Old 08-29-2013, 12:56 PM Thread Starter
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Fitting a boost gauge

Please could someone give me some guidance as to where the best place is to 'T' in a boost gauge on a S240

Seen various posts on the forum but really looking to know where the best results have been achieved
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post #2 of 20 (permalink) Old 08-29-2013, 09:39 PM
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tap into the outlet pipe from the intercooler.

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

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post #3 of 20 (permalink) Old 05-25-2019, 08:13 AM
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Any new thoughts on where to locate sender for boost gauge? If outlet pipe is the answer, where on the outlet pipe is best?
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post #4 of 20 (permalink) Old 05-25-2019, 08:27 AM
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I had the folks at Advanced Welding in Mountain View CA put a bung in this RLS pipe. The OEM is likely meaty enough to tap.
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post #5 of 20 (permalink) Old 05-25-2019, 09:04 AM
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You can also get a silicone coupler with built in bung. Easier than welding one in. Plus itís reversible.
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post #6 of 20 (permalink) Old 05-25-2019, 10:20 AM
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Where to purchase?
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post #7 of 20 (permalink) Old 05-25-2019, 01:02 PM
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Anyone know where you can source a silicon IC coupler with built-in bung?
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post #8 of 20 (permalink) Old 05-25-2019, 02:34 PM
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They are available at lots of places including amazon. Measure the coupler you need then search silicone coupler bung *size*

2007 Exige S with almost every track mod...
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post #9 of 20 (permalink) Old 05-25-2019, 03:30 PM
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Good information here. I wasn't aware of silicone couplers with built-in bungs. Thanks.

San

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post #10 of 20 (permalink) Old 05-25-2019, 03:49 PM
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Just a word of advice, be careful buying silicon hoses/couplers on Amazon. A LOT of the options are complete sh*t from China. They look nice, but have next to no structural lining. Even the name brand ones made in China are still far better than the really cheap options from companies you've never heard of where they all have the exact same part for sale (one factory, 100 brands selling same part).

2006 Lotus Exige: Avery Matte Graphite wrap, partial built motor (9:1 Mahle pistons, Ferrea Competition valves, ACT Clutch, ARP head studs), REV400, Nitron SAs, BOE QS exhaust, Ultradisc rotors, Moroso Oil pan, Circuitworks oil pump, CF Stuff (Cup Roof, ReVerie diffusor, side scoops, APR air dam, craftsquare mirrors), Worksbell quick release, Odyssey PC625, Morimoto Xenon HID, BOE Rear Oil Cooler, Difflow Aeroplates, BOE Swirl Pot, DaviesCraig EWP, Reversed Heater Matrix
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post #11 of 20 (permalink) Old 05-25-2019, 04:19 PM
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Well... I got some interesting data at Sears Point this weekend with my new boost pressure sensor. I get the expected 6psi boost when I have my foot on the floor. The embarrassing fact is that even a teeny bit of a lift kills the boost. And I do that more than I'd like to admit. Those data rule!
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post #12 of 20 (permalink) Old 05-26-2019, 08:43 AM
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So anyone with experience with silicone coupler with a bung for boost sender that is worth buying? I am presently looking at the Mishimoto brand.

Also if anyone has a recommendation for best location for water temp sender install as I cannot read my oem gauge in direct sunlight?
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post #13 of 20 (permalink) Old 05-26-2019, 12:05 PM
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Quote:
Originally Posted by Conechaser View Post
So anyone with experience with silicone coupler with a bung for boost sender that is worth buying? I am presently looking at the Mishimoto brand.

Also if anyone has a recommendation for best location for water temp sender install as I cannot read my oem gauge in direct sunlight?
Yes I have the mishimoto brand bung coupler also. Iíve been using it for 3-4 years now with no issues.
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post #14 of 20 (permalink) Old 05-26-2019, 01:31 PM
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Thanks for advice.
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post #15 of 20 (permalink) Old 05-26-2019, 01:36 PM
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Thanks all for the info. Would have been a cheaper option of I'd known about the silicone coupler

Sent from my Pixel 3 using Tapatalk

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post #16 of 20 (permalink) Old 05-26-2019, 01:57 PM
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Quote:
Originally Posted by Conechaser View Post
So anyone with experience with silicone coupler with a bung for boost sender that is worth buying? I am presently looking at the Mishimoto brand.

Also if anyone has a recommendation for best location for water temp sender install as I cannot read my oem gauge in direct sunlight?

You could use the opposite kind of thing on your coolant hoses?

https://www.ppediesel.com/shop/3-0-b...515900300.html

2007 Exige S with almost every track mod...
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post #17 of 20 (permalink) Old 05-26-2019, 02:01 PM
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Which coolant hose would work best for ease of install? Picture?
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post #18 of 20 (permalink) Old 05-26-2019, 02:28 PM
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Originally Posted by Conechaser View Post
Which coolant hose would work best for ease of install? Picture?
There are 3 that come right off the head, any of them would work with one being larger then the other two. My car is too far from stock to be a good reference point and still in the trailer.

2007 Exige S with almost every track mod...
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post #19 of 20 (permalink) Old 06-03-2019, 08:24 AM
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Is the hose that has the purge valve in it on the left rear side of the engine bay a radiator hose or a heater hose? Any issues with tapping the bunge coupler for water temp sender unit into this hose?

Thanks,

Bryan
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post #20 of 20 (permalink) Old 06-03-2019, 08:37 AM
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Is the hose that has the purge valve in it on the left rear side of the engine bay a radiator hose or a heater hose? Any issues with tapping the bunge coupler for water temp sender unit into this hose?

Thanks,

Bryan
That hose is a heater hose and comes off the pump discharge, so it should be a fair bit cooler then the other lines I expect. Probably not the best.

2007 Exige S with almost every track mod...
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