Roman's 4GR V6 Carina discussion thread

[Roman]

They ban themselves with trigger errors

[Stu]

I was about to say that!

[GARDRB]

1 hour ago, Roman said:

They ban themselves with trigger errors

#triggered

[Muncie]

Im looking forward to having my ass handed to me at drag day by another v6.

[Roman]

I will be happy just to lay down a few passes and come home with a non broken car to be honest.
Takes a bit of trial and error / experience to dial everything in and get good times. 
Not expecting any miracles from it. 
As it sits (sat) with factory cams, probably still slower quarter mile than the echo's best.

[Stu]

#nitrous

[Muncie]

On 27/07/2025 at 18:23, Roman said:

As it sits (sat) with factory cams, probably still slower quarter mile than the echo's best.

I'm sure its going to be a lot more usable across more racing your into than the Echo though, it'll probably tow a trailer way better than the echo did and look cooler doing it all.

[Roman]

Carina looks cooler sure.
But its quite disturbing how good the echo actually was at a whole lot of things.
I think the only way this car will be quicker is straight line speed. 
The echo had nearly the same wheelbase, but zero weight hanging over each end.
It turned into corners way way better and felt a lot more settled and stable overall.
Then Carina weighs 25% more, and things like having the gas tank hang way over the back axle. and a lot of weight forward of the front wheels (comparatively)
Makes a crazy difference to how it feels cornering braking etc.
This will be heaps of fun but ultimately it's one of the cars that the Echo probably would have passed as well. Haha.

But, having the Carina running, and with lots of rpm is the thought that puts a big grin on my face. 
As I got older, the more I realize that maximizing the driving experience, and having the fastest possible car can be two very different things.
My daily driver/tow car might be faster than the carina overall too, while using half as much gas, half the noise, etc etc. I'm 100% fine with that 

[h4nd]

Oblig PitVipersBurnout.jpg

[GARDRB]

11 hours ago, Roman said:

Carina looks cooler sure.
But its quite disturbing how good the echo actually was at a whole lot of things.
I think the only way this car will be quicker is straight line speed. 
The echo had nearly the same wheelbase, but zero weight hanging over each end.
It turned into corners way way better and felt a lot more settled and stable overall.
Then Carina weighs 25% more, and things like having the gas tank hang way over the back axle. and a lot of weight forward of the front wheels (comparatively)
Makes a crazy difference to how it feels cornering braking etc.
This will be heaps of fun but ultimately it's one of the cars that the Echo probably would have passed as well. Haha.

But, having the Carina running, and with lots of rpm is the thought that puts a big grin on my face. 
As I got older, the more I realize that maximizing the driving experience, and having the fastest possible car can be two very different things.
My daily driver/tow car might be faster than the carina overall too, while using half as much gas, half the noise, etc etc. I'm 100% fine with that 

2GR Echo time

[Vintage Grumble]

OOoooofffffff, imagine a FWD 2GR set up slapped in the back of an echo, oh my.

[Snoozin]

8 minutes ago, Vintage Grumble said:

OOoooofffffff, imagine a FWD 2GR set up slapped in the back of an echo, oh my.

Driving the front wheels from a rear/mid mounted engine is a bold call but I like it.

[Snoozin]

11 hours ago, Roman said:

As I got older, the more I realize that maximizing the driving experience, and having the fastest possible car can be two very different things.

 Also, welcome to the build ethos of my red car tbh. It's not fast like KPRs. It's not low like Matts. But it hit the brief right on the nose.

[Dudley]

Kpr cars only dyno fast, get him in the touge and my 5k is beating him hands down every time 

[kpr]

need more of a challenge to bring me out of retirement.   

Seems like cam manufacturers are winging it to a point. but guess they have to call it somewhere on the r&d,  else would be some expensive cams they would never sell
Can the vvti pulleys be modified at all?  either limiter or modified for more travel.   if there is another 10 degrees intake advance you can gain before minimum clearance, likely worth doing. 
easy enough to  find out with some testing on what you have now though, if still gaining when coming up to max advance. 

[yoeddynz]

21 hours ago, Roman said:

Things like having the gas tank hang way over the back axle.

Take the seemingly worldwide advice and install some bags of concrete in strategic places to cancel other 'BAD WEIGHT' 

[shrike]

10 minutes ago, kpr said:

need more of a challenge to bring me out of retirement.   

Seems like cam manufacturers are winging it to a point. but guess they have to call it somewhere on the r&d,  else would be some expensive cams they would never sell
Can the vvti pulleys be modified at all?  either limiter or modified for more travel.   if there is another 10 degrees intake advance you can gain before minimum clearance, likely worth doing. 
easy enough to  find out with some testing on what you have now though, if still gaining when coming up to max advance. 

You have a lathe,welder and old factory cams right? considered doing some regrinds to dial in the perfect cam sizing 😛 

[Roman]

35 minutes ago, kpr said:

Can the vvti pulleys be modified at all?  either limiter or modified for more travel.   if there is another 10 degrees intake advance you can gain before minimum clearance, likely worth doing. 
easy enough to  find out with some testing on what you have now though, if still gaining when coming up to max advance. 

Yeah the pulleys can be modified, I'll likely go down this road at some point. 
It's a huge amount of work though.
For now, I just want to get everything together and then see how it goes.
Like you say, see what sort of range it likes then make some decisions.

I'm happy to have some more iterative development as time goes on.

But my patience for having the car garage bound is currently at all time lows! 

 

[Dudley]

238hp @ maximum rpm

[mjrstar]

Oh, I had 178kw in my mind. Looks like @Dudley beat me to it.