I do not. may not have time to mess with it much before it goes away for winter

 

Bump. Any cool new stuff?

 

any old videos laying around??? like this setup been wondering for a while.... do u deal with any lag whatsoever?

 

Have driven a setup with turbo mounted where cat is and can say the difference from a manifold mounted turbo is night and day . LOTS of extra lag .

 

Like any turbo setup, the overall design matters greatly. As far as lag/response goes, that position is not much different than most top mounts with respect to distance from the engine. The manifold design, the turbo selection specifics, etc. There are other issues though like piping the cold side, oil, and water lines.

 

What about all the extra cold side pipework ? The turbo used in the setup i drove was pretty much exactly the same size as mine .
Running similar boost and starting from 2-3 car lengths behind him in 3rd gear from a roll at 3500rpm I would pull to about 3 car lengths in front of him by 8300rpm .
His turbo spoolup time was very poor yet as the rpms got higher I was hardly pulling away at all.

 

what is the basis for believing you are comparing what are two exact apples otherwise? What is his engine condition, what is his tune, what manifold design did he use to place it that far back, etc. etc. etc.

there could be any other number of things in his setup that are screwed up, everything in life is not as simple as a+b=c

 

Well if you honestly think that 6car lengths (in 1 gear) can be made up by tweaking the turbo/manifold/pipework/whatever then good luck to you sir .
Personally , I saw enough to form the view that it is just a bad idea (if you want good response) to mount the turbo any distance away from the ports.

 

every opinion, whether ignorant or not, has a basis

 

Yep - and Mr no turbo team (NTT for short) based his on what ?

 

you are welcome to your opinion and I have no interest in arguing about it

you should change that to Mr. never has posted about a turbo team, assuming you can comprehend the difference

 

Oh bollocks ! you want to argue about everything - admit it !


Last I heard your car has been on blocks for like 6 months so .............

 

Its about the volume your trying to fill with gasses...

 

not fill, pressurize. its always filled

 

yes . The car I drove felt very "spongy" on the throttle below 5000rpm . Still had a great top end - it actually made 280whp , and looking at the dyno chart you would not notice anything different .

 

the problem is your trying to compare 2 different cars and setups with SIMILAR turbos. The problem is there are a lot of variables that are being left out. It may not seem like a big difference but it is. The differences has been shown on a trial and error basis. I have been talking with quite a few people to see if the issues i am experiencing and a way to tackle it.

The problem with mounting a turbo i a different location is things have to be tackled in different ways and it is not as easy because the information is not out there and straight foward.

I have compared logs with other people and the match up very close but the power delivery seem to be smoother on my set up, but this is just a BUTT DYNO. Even you said it your self it looks good on paper.

Im not here to get into a big debate. It is well apperant that everyone one here has their own opnion on what is BEST and i do not see this changing. I have chose not to continue this thread because of where i have seen others lead. It always seem to get away from the topic and a debate between egos. Ive had half a mind to just delete the thread itself.

I do thank the people that have taken the time to help awnser questions as they come along to help improve what i started with and hope it continues. I will say I have no regets on choosing to go this route and its been a learning experience i have hated and enjoyed at the same time.

 

Dude, when you get it fined tuned and running right it will all be worth it. I know you will get it sorted soon enough and I can't wait to see the results.

 

The guy who bumped the thread asked a good question . I felt I had something to say about it because not many people have had a chance to compare two different setups like this side by side in a real world situation. IE a drag race .

I had a good knowledge of both setups .
Based on that , I felt that any differences between the two setups were going to be attributed more to the turbo placement position than any other one factor.

Sure there are things that could have been done to improve response but the simple fact is that the physics favour a manifold mounting position.

It is only through threads like this that we all can gain knowledge from the different things that people try so please keep it open .

Sorry for the thread crap .


BTW - the main issues that this guy faced were :

oil drain - he went through 3 turbos trying to sort this - never did completely.
air filter - placed under the car it was an issue with water and hot air. Piped to the front and the pipework became a huge restriction to flow .
Other than this (and the lag mentioned earlier) the car went really well ,was very smooth to drive and would blow the doors off most greddy setups as far as outright acceleration went.
What are your issues ?

 

Going off half-cocked on incorrect info seems to be the standard for all your attempts go make a point

It's amusing that you believe owning a Greddy turbo kit somehow makes you a turbo expert along with one of your other half cocked ideas that somebody you think doesn't have a turbo can't possibly have any knowledge about or experience with turbo systems. I had a Greddy kit in my hands for several minutes before deciding the design is unacceptable and putting it up for sale.

 

bumblebee ... please don't delete thread, this is too good to disappear on account of a couple ********* ... anybody who has been on rx8club for at least a year has learned to filter their BS anyway

 

I'm Closing this thread. BumblebeeRX8, If you want to add anything, PM anyone on the staff and have them open it back up.