LS1 Throttle Body Advice
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 42
Likes: 3
From: Pleasant View Tennessee
LS1 Throttle Body Advice
Looking for advice again guys. Have a 99 FRC with a Borla cat back and a quality Cold air intake setup. Car never sees a track and my driving is mostly low and midrange. Have pulled the trigger (but still waiting on) LG Super Pro 1 3/4 long tubes (no cats) and Fast LSX 92mm intake. Getting ready to order a Brian Tooley Racing stage 2 cam kit. My question is Throttle body. My car is drive by wire. I see plenty of $600++ 92mm options. Really?? Its a throttle body. I dont mind spending money for what I want but------------its just a throttle body!!!! Is there a more pocket friendly but reliable option? Again--not trying to cheap out as I am really not that guy-----but its a frikkin throttle body??!! Anybody??
Racer
Joined: Jun 2004
Posts: 270
Likes: 67
From: Montana
The LS2/7 throttle body (silver blade) will be higher price due to supply and demand... I would look into LS3 90mm throttle body (gold blade) it will be about a third of the price. It requires small additional tuning on the throttle max limit table. Whichever throttle body you go with, you will need to tune it anyway... with the saving I would buy a tuning program... I’m using HP Tuner...if you’re like me I’m always adding extra modifications, knowing how to tune save $$$$. You might want to get rid the MAF sensor go SD tune or go with MAF LS7 style card.
Here’s a link on LS3...
https://www.corvetteforum.com/forums...d-for-all.html
Here’s a link on LS3...
https://www.corvetteforum.com/forums...d-for-all.html
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 42
Likes: 3
From: Pleasant View Tennessee
So I picked up a factory GM 90mm silver blade unit from a forum member. Also got the harness adapter for it. Hope this all works well. Gathering all my parts for the upgrade to happen in spring I hope.
Le Mans Master
Joined: Jul 2010
Posts: 6,007
Likes: 723
if ur going from stock 78mm to 90 ur going to need the tune adjusted for more air flow or ur going to have idle problems. 🤔
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 42
Likes: 3
From: Pleasant View Tennessee
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 42
Likes: 3
From: Pleasant View Tennessee
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Melting Slicks
Joined: Mar 2018
Posts: 2,502
Likes: 187
From: California
what you were told was a lie to sell u a 92mm the 103 Tb is the way to go and the LSXR 102 is also available and on sale currently.....why wouldn’t you want a the 3 piece intake vs a one piece ? This way even if so happen you made a blunder on the 102 it can be repaired by replacement parts because it has a 3 stage design...& it’s got the race runners .just my opinion that 92 is like just putting another stock one on there in my eyes ....because it’s one piece ...the bigger throttle body required is a nice piece of equipment and a hawks 102 maf to boot ....
and your tune will be worth what your paying otherwise setting the 90 up is a short small scale from what you got ....your gonna need some fuel and picking up the fast 42’s or something compatible in that range for injectors ...the 102 is a growler very pleased with it ....
you don’t even need the headers nor the cam to make decent power with that set up and tuned right ....I would invest in e85 instead of a cam and headers the stock exhaust flows amazing especially if you got a titanium......tiger shark. The stock cam can handle power much more then your going to make ....
Last edited by Speedy007; Mar 19, 2021 at 12:20 AM.
Melting Slicks
Joined: Mar 2018
Posts: 2,502
Likes: 187
From: California
Bigger the better ..
& no it’s not gonna be harder to tune at idle ...idle is touch down to a mere 3% instead of the 7% again it shows just how much people actually know vs people who actually have the intake and tuned on the car .....
& no it’s not gonna be harder to tune at idle ...idle is touch down to a mere 3% instead of the 7% again it shows just how much people actually know vs people who actually have the intake and tuned on the car .....
Last edited by Speedy007; Mar 19, 2021 at 04:54 PM.
Le Mans Master
Joined: Jul 2010
Posts: 6,007
Likes: 723
Hey guys I ran into this problem when NW 90 came around 2005.
what ever size TB u get the first value that has to be changed is the scaler. If u get lucky and it's good which I never heard out. Then that's where a good tuner will shine. Majority of tuner know wot tuning because it takes time to to get the lower rpm tuned. Which is money to them. Then they start blaming on mechanical stuff like the new TB. JMO Don't yell at me speedy we have history.
what ever size TB u get the first value that has to be changed is the scaler. If u get lucky and it's good which I never heard out. Then that's where a good tuner will shine. Majority of tuner know wot tuning because it takes time to to get the lower rpm tuned. Which is money to them. Then they start blaming on mechanical stuff like the new TB. JMO Don't yell at me speedy we have history.
Melting Slicks
Joined: Mar 2018
Posts: 2,502
Likes: 187
From: California
Hey guys I ran into this problem when NW 90 came around 2005.
what ever size TB u get the first value that has to be changed is the scaler. If u get lucky and it's good which I never heard out. Then that's where a good tuner will shine. Majority of tuner know wot tuning because it takes time to to get the lower rpm tuned. Which is money to them. Then they start blaming on mechanical stuff like the new TB. JMO Don't yell at me speedy we have history.
what ever size TB u get the first value that has to be changed is the scaler. If u get lucky and it's good which I never heard out. Then that's where a good tuner will shine. Majority of tuner know wot tuning because it takes time to to get the lower rpm tuned. Which is money to them. Then they start blaming on mechanical stuff like the new TB. JMO Don't yell at me speedy we have history.
My tuners was like I thought u said it just needed some small idle adjustments lol hahahaha I got my money worth that day ......Last edited by Speedy007; Mar 19, 2021 at 01:34 PM.
