Hi guys,

Looking to get around 4.5 sec 0-60 and a top speed of around 170mph out of my S.

Have considered going SC due to the possible reliability issues of a turbo, but it seems it will be difficult to get this out of a SC without spending more $$ modifying it, as the SC tends to have an effect at 6k revs +, whereas a turbo kicks in at around 3k.

I am looking to keep the car as a daily ride but with more power and acceleration. I have been looking at the inline pro turbo kits, which start at around $4000. They seem to be the ones to go with were I to go turbo, as they have lots of experience turboing S's

I would rather not run high boost, as I am aiming for something that performs well and is very reliable.

Anyone done anything similar that can recommend parts and give any tips.

I am currently considering a Toda header, a Toda race cat and an dual Invidia exhaust and possible an AEM EMS, but I understand they are hard and expensive to tune? ... any other suggestions?

Thank you all for your help!

 

The header is pointless in a turbo app. It is replaced by a turbo manifold supplied by the company of your choosing. Invidia exhaust whould work, but I think there are better options if you are going FI. This topic has been beat to death so I wouldnt expect any more responses from people. Do some searching.

 

i have no idea about 0-60 times for the s2k with an SC or turbo ... but since the ap1 does it stock in 6.1 seconds you defenitly need a lot of power or a ton of low end torque to get 1.6 seconds of the 0-60 sprint.

one should be a small turbo ... gt28r with the smallest hot side housing possible i believe .63 for the R and .68 for the rs ... ot get a td05 7^cm ... those will start to spool around 2800 rpm on low engine load. but you boost the hell out of youre engine up to 9k rpm .... you have boost all the way which is hard on youre engine.

a 2step could defenitly help ( dont use this 10 times a day )

the 4.77 conversion also seems to help a lot ....

those 3 together will defenitly get you about a 4.5 0-60 spring , but will probarly break youre axles soon.

i just dont think an sc will get you there since they are rpm related ... just takes to long before the output the max power ....( on a normal size pulley .. not talking about 3" pulleys )

please correct me if i'm wrong guys ... i whas looking for the same goals as the OP. but this is what i figured sofar.

 

I have been scouring the FI area reading the various turbo vs super threads, etc but I am still confused as to what to do.

I understand its been talked about a lot, but I am unsure as to what I would I would require exactly. I have read lots of threads but there are many differing opinions, and I am finding it hard to work out which ones make the most sence for what I am trying to do.

I am really looking for people who have done something similar to what I am looking for and can give me a bit of advice.

maybe 4.5secs is a going a bit too far I don't really know how HP and Torque translates to 0-60mph speeds and top speeds, I'm looking for people who have systems installed on their cars to provide me with some info

Thanks for answering! Turbo_Puppy: info is very useful, as I thought it would be difficult to get it out of a SC, but the turbo as you said would run hard on the engine

 

Well your going to have to choose what you rather lean torwards, reliability or power (0-60, etc).

A SC will definatly be more reliable with most never having a single issue with their charger. Downside is they don't make nearly as much power per psi, cost more to make more power, and because of their characteristics are slower in almost all situtations. If you want fast 0-60 times this is probably not the smartest option however it is if you want to just slap it on and never worry about it again.

As for the turbo; turbos have become MUCH more reliable then they have in the past. Sure your going to have to tinker it more (as there are a lot more things going on) but overall nothing to major usually. Sure there are exceptions to the rule (in both a SC and a turbo) where the main housing fails, but thats no different then someone blowing an engine randomly. As for power, they are great. They make lots of power under the curve as compared to a SC and will pretty much blow a SC away with the same psi almost in every case. If you want 0-60 times this would be the way to go.

We can't tell you what you rather have. Thats your own decision on which you rather deal with. Just know, you can't have the best of both worlds. If you did, don't you think all the other companies would be out of business?

 

yeah ... if you like to boost from 2800 rpm all the way to 9000 rpm x 5 ( boost in 1st gear is impossible ) ... thats like evrey gear +/- 4- 5 seconds boost on youre engine ... do you have any idea how hard that is on an engine ? ... dielsel engines can do that because temperatures are so much lower , but on gas engines ( and we are lucky we have forged internals ) it is really hard and will wear out piston rings , valves , valve seals etc.. etc... very soon !

but aggain i could be very wrong as well ... i am just reading those kinda things on the net ... and i trust only things that sounds like they make sense ...

maybe some turbo guru on this board can help us out .. someone with 1st hand expierence and a dyno proven +/- 4.5 sec 0-60 sprint...couse i really think this is gonna take so much more than we can think off right now ...

 

Wow yo ureally need to do alot of research. 1st thing is yo uare never going to reach 4.5 second 0-60 and 170mph top speed. I won't say never but not for less than 20,000 dollars. A daily driven s will also probably never see 4.5 in the 0-60 or 170. The turbo kit is 4000 dollars but that doesn't include everything. After all is said and done you will spend around 8-10,000 dollars.

You don't want to run high boost, but still want that kind of performance?? I don't understand....

 

If you raise your redline, i believe its possible to achieve your 170mph since the S is currently gear limited (from what i've heard).

However, to achieve your 0-60 times, getting gears would definately help but they will, in turn, limit your top speed.

Let's put it this way, a Lotus Exige S has 220hp/165tq weighing in at 2077lbs with a 4.4 0-60. This means the Exige S has 9.44lbs/hp and 12.6lbs/tq. The S2000 has 240hp/162tq weighing 2855lbs, meaning 11.9lbs/hp and 17.6lbs/tq. To mathematically achieve the Exige S speeds (without taking into consideration gearing, mid-engine vs front-engine, grip, etc), the S should *only* need 302.4hp and 226.8tq.

 

Thanks for replies!

I'm just speculating...never had a turbo on my S and admitedly don't know too much about it.

Have been told by someone running a vortech supercharger and a couple of other mods that he was running 4.5sec 0-60, so didn't think would be too much to ask from a turbo - maybe I was wrong!

I know...its every1's wish for something reliable that gives the power you can get out of a turbo. Turbo's are much improved and even though they cost more than SC, seem to be more worthwhile performance for $

Rather than boost is hard on the engine, my quesiton is more along the lines of can the engine cope and what can be done to help the engine cope.

Thanks for all your answers and hopefully we will get some turbo guru on this board can with 1st hand expierence and a dyno proven +/- 4.5 sec 0-60 sprint...would be a great help!

 

Kei2110 you numbers seem to make sence, the question is whether this is the case in practice.....