Calling for LS advice and recommendations
Discussion
RichardD said:
Congratulations, you have a base for lots of possibilities! What make/models are the turbos out of interest 
?
Thinking back to the 1/4, with a manual box you will wanting to be maxing out in 3rd or 4th at the end... (3rd may be tricky due to rpm required.)
With the right cam, and uprated valve springs it should be good for at least 7200 rpm.?Thinking back to the 1/4, with a manual box you will wanting to be maxing out in 3rd or 4th at the end... (3rd may be tricky due to rpm required.)
The hairdryers are genuine Garret GT3076r good for upto 600 bhp each.
I will only be running them at 10psi for the first season. Honest.
DangerousDerek said:
With the right cam, and uprated valve springs it should be good for at least 7200 rpm.
The hairdryers are genuine Garret GT3076r good for upto 600 bhp each.
I will only be running them at 10psi for the first season. Honest.
More rpm the better (assuming power isn't dropping off too much) The hairdryers are genuine Garret GT3076r good for upto 600 bhp each.
I will only be running them at 10psi for the first season. Honest.
.Am sure you already know, you should typically get (very) low 10's with just under 700bhp and a 'chunky' T56 (slightly slower shifting than the T5), crossing the line in 4th.
DangerousDerek said:
RichardD said:
Congratulations, you have a base for lots of possibilities! What make/models are the turbos out of interest ?
Thinking back to the 1/4, with a manual box you will wanting to be maxing out in 3rd or 4th at the end... (3rd may be tricky due to rpm required.)
With the right cam, and uprated valve springs it should be good for at least 7200 rpm.?Thinking back to the 1/4, with a manual box you will wanting to be maxing out in 3rd or 4th at the end... (3rd may be tricky due to rpm required.)
The hairdryers are genuine Garret GT3076r good for upto 600 bhp each.
I will only be running them at 10psi for the first season. Honest.
Seriously, I have a 2.5 psi map on my Chimaera that is perfect for everyday use.
RichardD said:
More rpm the better (assuming power isn't dropping off too much) .
Am sure you already know, you should typically get (very) low 10's with just under 700bhp and a 'chunky' T56 (slightly slower shifting than the T5), crossing the line in 4th.
Weli reckon I can dip into the 9’s and maybe a mid 9 with say a bar of boost..Am sure you already know, you should typically get (very) low 10's with just under 700bhp and a 'chunky' T56 (slightly slower shifting than the T5), crossing the line in 4th.
Think I will be using MS3 pro
DangerousDerek said:
Weli reckon I can dip into the 9’s and maybe a mid 9 with say a bar of boost.
Think I will be using MS3 pro
I did a quick model / calc which resulted in a 10.1 (680bhp) with a high 1.5x 60ft time too, so I definitely agree.Think I will be using MS3 pro
Do you think lag may be any sort of issue (in the first couple of gears) and ... if so (!) are you planning on keeping your NOS equipment as a sort of "anti-lag" just in case
?RichardD said:
I did a quick model / calc which resulted in a 10.1 (680bhp) with a high 1.5x 60ft time too, so I definitely agree.
Do you think lag may be any sort of issue (in the first couple of gears) and ... if so (!) are you planning on keeping your NOS equipment as a sort of "anti-lag" just in case ?
Richard, I have already done a 1.55 second 60 foot time. I plan to make a few changes when I sort a diff out that can take the punishment. I expect to be deep into 1.4'sDo you think lag may be any sort of issue (in the first couple of gears) and ... if so (!) are you planning on keeping your NOS equipment as a sort of "anti-lag" just in case
?
DangerousDerek said:
Richard, I have already done a 1.55 second 60 foot time. I plan to make a few changes when I sort a diff out that can take the punishment. I expect to be deep into 1.4's
All I was intending with those initial numbers was just a rough guess of some potential early runs (based on a T56 or TKO600). With the power potential of the engine block and the turbos, if the car is modified as much as is necessary to use all the power fully, then you can be on the edge of wheelies and into the 8's !4.8s and 6.0s can handle some good boost with no problems (14~16psi) if tuned right. But the latter will help spool up the turbos and give you a much better torque curve.
That build is going to be a monster! Would love to have a race once I get my car out of the warehouse and road legal.
That build is going to be a monster! Would love to have a race once I get my car out of the warehouse and road legal.
norris_83 said:
4.8s and 6.0s can handle some good boost with no problems (14~16psi) if tuned right. But the latter will help spool up the turbos and give you a much better torque curve.
That build is going to be a monster! Would love to have a race once I get my car out of the warehouse and road legal.
I will race anything! I find faster cars drag me along and I get my best times that way.That build is going to be a monster! Would love to have a race once I get my car out of the warehouse and road legal.
Hmmm I hope I don't suffer too much lag and not missing out on torque for not having a 6.0.
The car will weigh around 1250kg with me in it when finished so maybe a higher revving 4.8 is right for the car. I did a little research on the spec I am aiming for and think that boost will build from around 2500 rpm. Whatever it ends up I am sure it will be considerably faster than it has been on a nitrous injected Rover V8 and that's all that matters.
DangerousDerek said:
...Hmmm I hope I don't suffer too much lag and not missing out on torque for not having a 6.0.
The car will weigh around 1250kg with me in it when finished so maybe a higher revving 4.8 is right for the car. I did a little research on the spec I am aiming for and think that boost will build from around 2500 rpm. Whatever it ends up I am sure it will be considerably faster than it has been on a nitrous injected Rover V8 and that's all that matters.
When you gave me the models of the turbos I did a quick look on the www and they seemed popular for big power Evo's, revving to 8k. Imho a 3.0 bank could mean everything happening at lower than ideal rpm for straightforward gearing, so you having 2.4's is probably ideal The car will weigh around 1250kg with me in it when finished so maybe a higher revving 4.8 is right for the car. I did a little research on the spec I am aiming for and think that boost will build from around 2500 rpm. Whatever it ends up I am sure it will be considerably faster than it has been on a nitrous injected Rover V8 and that's all that matters.
.RichardD said:
When you gave me the models of the turbos I did a quick look on the www and they seemed popular for big power Evo's, revving to 8k. Imho a 3.0 bank could mean everything happening at lower than ideal rpm for straightforward gearing, so you having 2.4's is probably ideal .
I knew I had a reason but it was so long ago I bought these turbos. The proof will be in the pudding.Gassing Station | TVR Major Mods | Top of Page | What's New | My Stuff