GT350R vs 6th Gen Z/28

[Khell86]

It's just a fancy term for VVT with two cams that aren't bound to the same advancing and retarding of the other cam.

Independent VVT would be the most accurate term.

I know it accomplishes the same thing for the most part, but I thought I had read somewhere it was better than most other companies VVT. It could be adjusted more or something along those lines.

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[krt22]

I have to disagree. The Alpha platform does in fact house OHC engines in the Camaro, ATS, and CTS.

The engine in question is the 3.6L LGX V6, which technically would present the similar packaging constraints as a DOHC V8 would from a width perspective.

As well as the TT V6 found in the ATS-V, and CTS V-Sport.

You are right, I was really only thinking of the corvette and how cramped the engine is

 

[Process]

I know it accomplishes the same thing for the most part, but I thought I had read somewhere it was better than most other companies VVT. It could be adjusted more or something along those lines.

Ford's version of VVT is slightly different than some companies. It is similar to how BMW does it. Ford allows each of the four camshafts to move independently from one another, so does BMW and a few other companies. Traditionally VVT locked both intake and exhaust cams together in movement.

 

[RedRiot]

a contemporary version of the LT5 would be so bad ass.

 

[Process]

a contemporary version of the LT5 would be so bad ass.

It would make sense, given the GT350/R's track successes. Why not go with a high rev V8 in a DOHC package. It worked for Chevy before, may as well work again.

 

[Khell86]

Could be emissions. We all know they couldnt keep the Z06 N/A and I thought at one point in time they came close with the LT1 not meeting emissions. Why they brought out DI and used a smaller cam than the LS3? I'm totally talking from memory though. Too lazy to look it up... sorry lol.

 

[9secondko]

It would make sense, given the GT350/R's track successes. Why not go with a high rev V8 in a DOHC package. It worked for Chevy before, may as well work again.

I don't know if it was patent issues or whatever. But GM tried building a 5.5 v8 DOHC and it didn't make power. At least not cleanly.

I'm sure they'll get there. No doubt they've been doing some skunkworks ops here and there.

 

[1320']

I will laugh so much if GM does do a DOHC V8 and all the GM blowhards that bash the Coyote/Voodoo act like it is the most innovative, advanced V8 of all time

 

[Childs Play]

I will laugh so much if GM does do a DOHC V8 and all the GM blowhards that bash the Coyote/Voodoo act like it is the most innovative, advanced V8 of all time

Everyone always thinks what they have is better.

A lot of Mustang guys constantly bashed IRS until they got it. Although to be fair some of them still bashed it after they got it. Lol

I'd prefer it for drag racing though so I can't blame them. The 5th gen Mustang was a screamer in the quarter mile. That being said the IRS is just about better in any other application except for serious off-roading. Even that can be debated though, and I doubt we are going to be taking Mustangs down the Rubicon trail anytime soon.

 

[Process]

I will laugh so much if GM does do a DOHC V8 and all the GM blowhards that bash the Coyote/Voodoo act like it is the most innovative, advanced V8 of all time

They had it before Ford went to the 4.6 2v/4v in the early 90s, I'm surprised GM did not develop a V8 OHC program from the ZR-1's successes. I mean they had something going with the Northstar engines, I figured they would keep it going. I remember the XLR (Cadillac on a Corvette Chassis) was using them, as well as a supercharged variant in the V.

You are right, I was really only thinking of the corvette and how cramped the engine is

Cadillac XLR and XLR-V had DOHC Northstar V8 Engines, as well as a Supercharged variant on a C6 Chassis.

Everyone always thinks what they have is better.

A lot of Mustang guys constantly bashed IRS until they got it. Although to be fair some of them still bashed it after they got it. Lol

I'd prefer it for drag racing though so I can't blame them. The 5th gen Mustang was a screamer in the quarter mile. That being said the IRS is just about better in any other application except for serious off-roading. Even that can be debated though, and I doubt we are going to be taking Mustangs down the Rubicon trail anytime soon.

Plenty of cars can drag race very well on an IRS. Porsche, BMW, Audi, Lamborghini, Nissan GTR, Corvette, etc etc. Granted none of those cars are packaged in a $20-50k cars. They are using better quality suspensions.

 

[garagelogic]

Because the GT350 vs ZL1 thread went over so well... I thought I would post a link to the newly released spy photos of the 6th gen Z/28. There doesn't seem to be any opening in the hood for cooling like the ZL1. Could this mean that there will be an NA motor and not the LT4? Could this mean GM will up the power on their LT1 or create a whole new LT engine? I can't wait to see the specs on this and see a head to head against the brilliant GT350R. So as before what do you guys think the outcome would be? As before same day, same driver, same conditions, in a vaccuum. :cheers:

EDIT: It would help if I posted the link.... Sorry all. http://www.camaro6.com/forums/showthread.php?t=445328

Not sure what you are looking for in the way of responses. If GM builds a 6thGen z/28 trim, it will beat the GT350R in all performance aspects, otherwise, why build it in the first place? That being said, it would be a huge failure on GM's part if they build a z/28 and it fails to outperform the GT350R, as the performance metrics of the Shelby are a known quantity. It's always easier to hit a static target than a moving one.

The real question will be, can they build a z/28 that beats the GT350R at a similar price point? If they build it and it prices out more than $5K more base MSRP than the GT350R but only marginally outperforms the car, then it would be a significant miss by GM. Especially since the GT350R outperformed the last Gen z/28 and did it with a base MSRP $12K cheaper.

 

[thePill]

All of the GM chassis designs revolve around the small footprint of the OHV small blocks, a DOHC variant would likely be a packaging nightmare due to the extra width

That I did not think of :(

I was gettin' frightened of an honest GM DOHC in a new LT5.

The Alpha platform is very interchangeable. However, any changes to the front section and rails would need equal attention to the rest of the car.

I'm thinking a Dry Sump LT1 or, Chevy will begin the generational changes in the LT1 (LT2 and LT3). This is most likely the case...

Look at the gains from LS2 to LS3, apply that to the LT1 and that is a good guess.

LT2= 475-480hp
Dry Sump LT2= Maybe 10-15 more?

That's the z28...

 

[JohnnyUtah]

Not sure what you are looking for in the way of responses. If GM builds a 6thGen z/28 trim, it will beat the GT350R in all performance aspects, otherwise, why build it in the first place? That being said, it would be a huge failure on GM's part if they build a z/28 and it fails to outperform the GT350R, as the performance metrics of the Shelby are a known quantity. It's always easier to hit a static target than a moving one.

The real question will be, can they build a z/28 that beats the GT350R at a similar price point. If they build it and it prices out more than $5K more base MSRP than the GT350R but only marginally outperforms the car, then it would be a significant miss by GM. Especially sine the GT350R outperformed the last Gen z/28 and did it with a base MSRP $12K cheaper.

Agreed. Now if only Ford would make some more GT350s so that I could get one for MSRP or less. It's frustrating to see such a great car and have it be almost impossible to get for a reasonable deal.

 

[thePill]

They could reverse the LS order, as in, going from 6.2 to 5.7 in an LT2 or, a Turbo 5.7...

A 5.7 would be close to 8000rpm, maybe around 400hp?

Get 100-120 back with a single turbo.

Do they have the $ to do it AND, are you willing to pay $70k for a Camaro again?

 

[garagelogic]

Agreed. Now if only Ford would make some more GT350s so that I could get one for MSRP or less. It's frustrating to see such a great car and have it be almost impossible to get for a reasonable deal.

They're not. I'd hazard to say more people, on the whole, have picked up GT350's for MSRP than have paid any ADM. The ADM issue is amplified on this site because a few enthusiasts have struggled to find a "reasonable" deal. The dealer I took delivery of my R from did a MSRP deal for a member of this site just a few weeks ago.

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