Throttle body recommendations
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Intermediate
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Throttle body recommendations
I just acquired a msd intake manifold with and ls2 fuel rail and 36lb injectors.
what throttle body should I get ? I was thinking a ls2 silver blade
car is stock with a full exhaust system
what throttle body should I get ? I was thinking a ls2 silver blade
car is stock with a full exhaust system
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Apr 3, 2026, 11:30 AM
Le Mans Master
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Good tuner I guess. I just bolt stuff on and hand it to him to figure out, lol. 
Le Mans Master
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Burning Brakes
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The only OEM larger upgrade that's been proven to work, be reliable and not have weird repin, tune nuances, reduced engine power- you name it-
is the LS2
others claim a gold blade can work, if it's the perfect gold blade, built exactly at 1:10pm on a Friday the 13th, but only in 2007- and then you just have to reset the REP every once in a while 🙄
get an LS2 silver blade and rock on. Conversion harness is super cheap, proven, reliable, no dumb **** to deal with in the tune or under the hood
is the LS2
others claim a gold blade can work, if it's the perfect gold blade, built exactly at 1:10pm on a Friday the 13th, but only in 2007- and then you just have to reset the REP every once in a while 🙄
get an LS2 silver blade and rock on. Conversion harness is super cheap, proven, reliable, no dumb **** to deal with in the tune or under the hood
Le Mans Master
Joined: Oct 2007
Posts: 9,682
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
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St. Jude Donor '09-'10-'11
The only OEM larger upgrade that's been proven to work, be reliable and not have weird repin, tune nuances, reduced engine power- you name it-
is the LS2
others claim a gold blade can work, if it's the perfect gold blade, built exactly at 1:10pm on a Friday the 13th, but only in 2007- and then you just have to reset the REP every once in a while 🙄
get an LS2 silver blade and rock on. Conversion harness is super cheap, proven, reliable, no dumb **** to deal with in the tune or under the hood
is the LS2
others claim a gold blade can work, if it's the perfect gold blade, built exactly at 1:10pm on a Friday the 13th, but only in 2007- and then you just have to reset the REP every once in a while 🙄
get an LS2 silver blade and rock on. Conversion harness is super cheap, proven, reliable, no dumb **** to deal with in the tune or under the hood
Thread Starter
Intermediate
Joined: Dec 2024
Posts: 28
Likes: 26
The only OEM larger upgrade that's been proven to work, be reliable and not have weird repin, tune nuances, reduced engine power- you name it-
is the LS2
others claim a gold blade can work, if it's the perfect gold blade, built exactly at 1:10pm on a Friday the 13th, but only in 2007- and then you just have to reset the REP every once in a while 🙄
get an LS2 silver blade and rock on. Conversion harness is super cheap, proven, reliable, no dumb **** to deal with in the tune or under the hood
is the LS2
others claim a gold blade can work, if it's the perfect gold blade, built exactly at 1:10pm on a Friday the 13th, but only in 2007- and then you just have to reset the REP every once in a while 🙄
get an LS2 silver blade and rock on. Conversion harness is super cheap, proven, reliable, no dumb **** to deal with in the tune or under the hood
Le Mans Master
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From: Akron Ohio
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Le Mans Master
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
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St. Jude Donor '09-'10-'11
Good tuner I guess. I just bolt stuff on and hand it to him to figure out, lol.
Le Mans Master
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Le Mans Master
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Le Mans Master
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Le Mans Master
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It won’t hurt your power, but you’ll want to get it re-tuned. Perhaps hold off until you do heads and cam and get everything tuned in one session. I have failed follow my own advice on that, lol, and it’s costly. Enjoy your project 👍
Le Mans Master
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Well, because your engine doesn’t need it? Not meant as a criticism, but you did ask…
It won’t hurt your power, but you’ll want to get it re-tuned. Perhaps hold off until you do heads and cam and get everything tuned in one session. I have failed follow my own advice on that, lol, and it’s costly. Enjoy your project 👍
It won’t hurt your power, but you’ll want to get it re-tuned. Perhaps hold off until you do heads and cam and get everything tuned in one session. I have failed follow my own advice on that, lol, and it’s costly. Enjoy your project 👍
Doing everything at once will save you $$$. Considering that the throttle body by itself won't really get you anything, it makes sense to wait until you're ready to do heads and cam all at once with one tune.
Running Guns & Moonshine
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From: CT
Second one here. I ran a gold on my last 99 coupe for many years on a Fast92 with a P1-Sc setup. Zero issues once tuned correctly. Several REPs before then. The tune fix came from Doug @ ECS who set the throttle signal limit to 97% or similar if memory serves. The blade itself still reaches 100% opening, but the signals sent/returned now function in the C5 ecu. The same info has been commented on the forum in the past. When I went back to NA on that car I recall copying the setting in EFI Live and it continued to work on otherwise factory original tune with a few tweaks like no torque limit between shifts, earlier fans to keep coolant temps down, etc.
Drifting
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From: Avon Lake OH
As I noted in another thread, swapping from the 78mm LS6 throttle body may not be 100% needed unless the engine has some other mods that results in the 78mm throttle body becoming a flow restriction. Now mine specifically was a before and after; before was a LPE ported 78mm throttle body on a stock LS6 intake and after was a ported LS2 silver blade throttle body on the TPIS modified 90mm snout LS6 non ported intake. We saw zero real change in peak power numbers, the combo made 402 rwhp with 392 lbs-ft torques SAE standard on a DynoJet. As always, YMMV.
https://www.corvetteforum.com/forums...post1609470027
https://www.corvetteforum.com/forums...post1609470027
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