2001 GS-R: Engine rebuild, other refreshments

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Dave7CDMTYPER
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Sun Mar 16, 2025 5:57 pm

Made progress on the S2 manifold. I watched a few good videos of people installing the regular S2 manifold. Mine is different, but similar enough.

It's weird how the IACV attaches, on a bracket. Also figured out how to install the water pipe, and block off pieces.

Installed AEM fuel filter. I know this isn't really necessary, but I think it's kind of fun, nostalgia of the '90s. I think I may use the AEM fuel rail, both look good in black.

Deciding on which fuel injectors to use. I have some new/flow tested RC 310cc. But after a quick online search, I'm pretty sure there are better quality options.
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ITR CDM 01-1322
2001 GS-R
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Dave7CDMTYPER
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Sun Mar 16, 2025 6:10 pm

Some fuel injector options I found:

https://fuelinjectorclinic.com/products ... 8774114374 (Thinking 365cc should be good enough?)

https://gramsperformance.com/fuel-injec ... -0500.html (550 cc is their smallest afaik, but might be a quality option)
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2001 GS-R
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GeHonda
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by GeHonda » Mon Mar 17, 2025 11:13 am

Minor suggestion here on that IACV. You can get OEM style spring band clamps instead of worm gear on Amazon for dirt cheap. I've seen so many worm gear clamps eat through the rubber over time that I'm not a fan of them.

Example here, but there are literally hundreds to choose from if you search "spring band clamp"

https://www.amazon.com/Rustark-55-Pcs-S ... 47&sr=8-21
1998 DC2 GSR, ITR clone project
1990 CRX Si
Previous owner of 98-0046, 98-0408

Dave7CDMTYPER
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Mon Mar 17, 2025 3:53 pm

GeHonda wrote: Mon Mar 17, 2025 11:13 am Minor suggestion here on that IACV. You can get OEM style spring band clamps instead of worm gear on Amazon for dirt cheap. I've seen so many worm gear clamps eat through the rubber over time that I'm not a fan of them.

Example here, but there are literally hundreds to choose from if you search "spring band clamp"

https://www.amazon.com/Rustark-55-Pcs-S ... 47&sr=8-21
Great idea thank you. Just ordered those. :trophy:

And it's a good reminder, I think I also have some new Honda OEM clamps.
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JDMJNKY
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by JDMJNKY » Tue Mar 18, 2025 8:18 pm

Love that manifold, definitely a good option. I'd also suggest looking into bigger injectors if you're contemplating injectors anyway. nothing like leaving some room to grow w/ e85.

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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Tue Mar 18, 2025 10:40 pm

JDMJNKY wrote: Tue Mar 18, 2025 8:18 pm Love that manifold, definitely a good option. I'd also suggest looking into bigger injectors if you're contemplating injectors anyway. nothing like leaving some room to grow w/ e85.
Ok good point. Not sure if I'll do e85, but at least will have a tune for race gas around 100 octane. What size injectors would you recommend?
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by JDMJNKY » Wed Mar 19, 2025 1:29 am

Depends on your power goals really. 550cc-750cc should do the trick if it makes mid 200whp

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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Wed Mar 19, 2025 9:07 am

JDMJNKY wrote: Wed Mar 19, 2025 1:29 am Depends on your power goals really. 550cc-750cc should do the trick if it makes mid 200whp
Roger that. 👍
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Fri Apr 04, 2025 7:27 pm

Made some good progress on the lines/hoses for the intake manifold. It took a while, but the most helpful way was to look at the factory service manual to see where the original lines go. Then figure out which ones are deleted for the S2 I/m. I realized that the weird throttle body coolant system will be deleted (which is good news imo), so I blocked off the outlets with rubber stopper things. I'll make sure they are snug and will put on clamps. I guess there is a chance of them leaking, but I think they will be fine.

I was able to see how the hoses route into the heater core and circulate back out. So I'm feeling pretty good, and that I understand most of the hoses and systems going on with the intake manifold.

I am trying to replace as many hoses as possible with new ones. The photos show some old and some new; the old ones are in place to remind me where they go.

I ordered some 550cc Grams injectors with plug n play wiring. I'll install those with the AEM fuel rail. I need to see if the stock fuel line will bolt up to that rail, or if I need to get an aftermarket one.

After the I/m and fuel stuff is done, I am pretty sure the engine will be just about ready to go back in.
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ITR CDM 01-1322
2001 GS-R
I have badge #00-1259 in hand.

Dave7CDMTYPER
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Joined: Tue Aug 15, 2017 2:17 am
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Re: 2001 GS-R: Engine rebuild, other refreshments

Post by Dave7CDMTYPER » Fri Apr 04, 2025 7:29 pm

I've also been trying to find some oem heat/dust shields for the front 36mm jdm brakes I have. I've bought a few sets off Ebay and they are all too small in diameter to install on the knuckles.
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