Porting throttle body or intake manifold?
Instructor
Joined: Feb 2017
Posts: 232
Likes: 50
From: Oakland CA
Pro
Joined: Aug 2012
Posts: 657
Likes: 192
From: Memphis Tennessee
I'm confused. You have a ported 100mm throttle body for the c8 that requires a tune... but the c8 can't be tuned yet. So what's the point in using it?
Supporting Vendor
Joined: Dec 2018
Posts: 1,760
Likes: 820
From: South Alabama
You can for instance use a CAI and a larger TB, they will run fine, but to optimize them you'd need to tune. This TB is the same for the C7 and the C8, for the C7 we have tuning available, for the C8 we'd have to wait. For the C8 it comes to doing as much as we can without tuning for now.
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Soler Performance LLC
support@solerengineering.com
www.solerengineering.com
(251) 468-9786
Soler Performance LLC
support@solerengineering.com
www.solerengineering.com
(251) 468-9786
Le Mans Master
Joined: Jul 2000
Posts: 6,559
Likes: 4,501
From: North Dallas 40 TX
The C8 runs in closed loop almost all the time, including full throttle. My understanding it is open loop at start up and limp home. As such unless the reading through the MAF sensor is accurate, it should adjust to targeted AF ratio until it runs out of injector. I suppose it is possible that sensors could go out of range, but a properly running car should not do that within injector range.
Now something like NO2 could screw it up.
Now something like NO2 could screw it up.
Melting Slicks
Joined: Aug 2000
Posts: 2,431
Likes: 1,203
From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ
You can for instance use a CAI and a larger TB, they will run fine, but to optimize them you'd need to tune. This TB is the same for the C7 and the C8, for the C7 we have tuning available, for the C8 we'd have to wait. For the C8 it comes to doing as much as we can without tuning for now.
Last edited by ArizonaZ06; Jun 29, 2021 at 05:09 PM.
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Supporting Vendor
Joined: Dec 2018
Posts: 1,760
Likes: 820
From: South Alabama
Yes, at this point we have seen so many C8's running with our Modified 95 (direct fit to ported 95mm manifolds or with custom sized Adpters) that we have no doubt they run great without tune, and no codes. That doesn't mean a tune can't be beneficial, but it has proven to be a viable Mod while we wait for the C8 ECM to be cracked.
Supporting Vendor
Joined: Dec 2018
Posts: 1,760
Likes: 820
From: South Alabama
We don't have one yet, but it is likely that there are some right here at the forum. We'll eventually get some from customers, and if they allow us, we'll gladly post them here. Many have shared how strong the car feels, but, yes, numbers will be nice.
Racer
Joined: Feb 2020
Posts: 392
Likes: 583
From: Philly
Helpful advice if you are replacing/removing your throttle body on your C8
Going thru the trunk and removing the airbox is a pita and takes hours to do. You can remove the tb by removing it with the intake manifold as 1 unit...a dozen 10mm bolts and some clips for the IM, loosen the inlet tube clamp and and unplug the throttle body and Boom, 15 minutes later it's off.
The caveat is the 95mm tb, its opening is larger and you have to shoehorn the inlet tube over the mouth which I couldn't do the previous way. I had to go thru the trunk and push it on while it was bolted to the engine.
Going thru the trunk and removing the airbox is a pita and takes hours to do. You can remove the tb by removing it with the intake manifold as 1 unit...a dozen 10mm bolts and some clips for the IM, loosen the inlet tube clamp and and unplug the throttle body and Boom, 15 minutes later it's off.
The caveat is the 95mm tb, its opening is larger and you have to shoehorn the inlet tube over the mouth which I couldn't do the previous way. I had to go thru the trunk and push it on while it was bolted to the engine.
Pro
Joined: Apr 2020
Posts: 637
Likes: 221
From: Irvine CA
Helpful advice if you are replacing/removing your throttle body on your C8
Going thru the trunk and removing the airbox is a pita and takes hours to do. You can remove the tb by removing it with the intake manifold as 1 unit...a dozen 10mm bolts and some clips for the IM, loosen the inlet tube clamp and and unplug the throttle body and Boom, 15 minutes later it's off.
The caveat is the 95mm tb, its opening is larger and you have to shoehorn the inlet tube over the mouth which I couldn't do the previous way. I had to go thru the trunk and push it on while it was bolted to the engine.
Going thru the trunk and removing the airbox is a pita and takes hours to do. You can remove the tb by removing it with the intake manifold as 1 unit...a dozen 10mm bolts and some clips for the IM, loosen the inlet tube clamp and and unplug the throttle body and Boom, 15 minutes later it's off.
The caveat is the 95mm tb, its opening is larger and you have to shoehorn the inlet tube over the mouth which I couldn't do the previous way. I had to go thru the trunk and push it on while it was bolted to the engine.
Last edited by Billy20; Aug 26, 2021 at 05:29 PM.
Racer
Joined: Sep 2008
Posts: 472
Likes: 78
From: San Antonio TX
Burning Brakes
Joined: Sep 2009
Posts: 931
Likes: 820
From: Houston, TX
I'm not sure why folks continue to use an adapter for a larger throttle body. Just bottle necking at the intake manifold opening. Would either port match or just do a ported stock throttle body. I had a Soler ported stock throttle body on my 6th Gen ZL1. Didn't pick up any top end power (nor did I expect to) but low and part throttle felt more responsive. They were great to buy from as well.
Pro
Joined: Apr 2020
Posts: 637
Likes: 221
From: Irvine CA
https://www.solerengineering.com/gen...9871-95-87-lt1
Last edited by Billy20; Aug 26, 2021 at 05:29 PM.
Pro
Joined: Apr 2020
Posts: 637
Likes: 221
From: Irvine CA
@HeadTurner it looks like the 95mm includes the adapter so you should need nothing.
Last edited by Billy20; Aug 26, 2021 at 05:25 PM.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,102
From: Fulshear, TX
Everything ordered & cores shipped, including an AttackBlue air filter to go along with them for what should make for a very efficient intake system.