I have a customer that wants to do a turbo S2k. I dont really know much about them. I know they are higher compression, they make around 200whp stock on our dyno. he is shooting for somewhere around 300-350whp with a turbo kit.

We are gonna be getting a Full-Race.com kit. I think its the Street kit or wahtever they call it, retails $5399. i got 680cc injectors, EMS, walbro pump, all that stuff.

I had a guy dyno at our shop with a comptech supercharger at 9psi he made 362whp on a stock motor. the motor lasted for a while but it did eventually give in and start smoking.

Im thinking with around 6-8-psi it should be around 300whp with that full race kit. My customer really doesnt want to go into the motor just yet. my questions are:

How many psi are you turbo S2000s running on stock motors? how realible has your Turbo S2K been? What kits are you running?

thanks
Mike

 

you can just get a 3mm headgasket from cody at lovefab for umm i think it was $150 ..... and you'll be able to boost whatever you'd like... the block is capable of handling 500rwhp.....

so 3mm headgasket and proper tuning with the ems and it should be fine... upgrade those injectors to some 1000cc to keep it safe... (rather run rich then lean)

 

what does the 3mm head gasket do? my brother has a vortec sc and he is running stock boost which is between 5-8 i think he made 280wph with stock exhaust and cat. Should i recommend him to get the 3mm head gasket.

 

thicker gasket lowers compression... either a 2mm or 3mm are available though cody at lovefab..

the S already has forged pistons and rods so it's good in that department unless you want to really push the envelope and get 500+rwhp


Modified by 03s2kblue at 3:34 PM 12/1/2005

 

oh and i wouldn't recomend it on your brothers supercharger unless he's going to swap pullies and up the boost....

when you lower compression you lose power but then that is regained by being able to boost higher and "technically" safer....

for instance.. not exact numbers just an example...
300hp at stock compression at 8psi
300hp with 3mm headgasket at 12psi

 

cool. What about the exhaust. He still has the stock exhaust. Would there be any big performance gain if he upgrade to the amuse exhaust?

 

exhaust will help.. single for even more power

 

i remember seeing on s2ki some guy witha black s2000 that lives in the snow boosted his car to 15-16psi on his stock internals. Ill try to find his post ...

I remember it didnt make too much hp either .. like low 300's ? i forgot

 

black S2000 + snow............. that's cody.....lol..

 

so a stock motor can hold 300-350whp with the right tune and injectors then. cause thats all im shooting for

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VtecKiDD &raquo;</TD></TR><TR><TD CLASS="quote">so a stock motor can hold 300-350whp with the right tune and injectors then. cause thats all im shooting for </TD></TR></TABLE>

it can

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solsurvivor &raquo;</TD></TR><TR><TD CLASS="quote">black S2000 + snow............. that's cody.....lol.. </TD></TR></TABLE>

Stay tuned for another snow video, 400+whp this time I think.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VtecKiDD &raquo;</TD></TR><TR><TD CLASS="quote">so a stock motor can hold 300-350whp with the right tune and injectors then. cause thats all im shooting for </TD></TR></TABLE>

Do the headgasket.

And yes, tuning is everything.
You could blow up on 5 psi with a bad tune.

 

I agree that tuning is everything. Turbo, manifold, and exhaust will DRAMATICALLY affect how much boost he can run safely. The more restrictive the exhaust, the less boost he will be able to run before seeing knock. I did 5-7 psi on a stock motor and 9-10 with a 2mm headgasket on 91 octane. I'll be trying to do 15 or so daily on 91 pctane with the new built motor. My car is easily daily drivable, but turbo kits are definitely NOT bolt on and go. Expect to have MANY more problems than he has had with the SC. BTW_ I do have snow tires on and drive quite often in snow.

Tim

 

I would think they should be able to handle just as much as the Type-s....

 

We have done numerous turbo kits at our shop, and we have tuned 515whp 1.8 L LSVTEC motors and a host of other 300-400whp engines.

I recently had this guy come in and ask about a turbo kit for an S2000 he has. He has several 70-80K mustangs and tons of COrvettes and other cars. He bought an S2000 as a toy, mainly probably cause its the upper end of the import community as far as a 20-30k goes, and its a good "head turner". well this guy does everything first class. so i showed him a 1st class turbo kit, the Full race version.

If he does it we will do a 3in exhaust of course, along with a clutch, EMS, injectors etc. his bill is in excess of 10K (remember the Full race kit is half that at $5300). this is parts and labor ($1200 clutch, $1200 EMS system, etc). I just didnt want to see him blow his motor if he tried to shoot for 10psi on a stock motor.

i know a GSR can handle it all day long, but ive never done a S2k before, so i was trying to get some opinions and 1st hand expierience.

you can assume the following:
the turbo kit will be installed professionally
fuel and engine managment will be top notch (EMS, 680-1000cc inj)
Exhaust and DP will be 3in

now, after all that is done, how much can a stock motor handle. thats what i was getting at.


im assuming guys with a good conservative tune can get away with 8-10psi. Even without the headgasket, or am i wrong?

thanks again
Mike
Mainstream Performance

 

^ not to be a dick.. but if you read my first post... you'd know your answer..

the block is capable of handling 500rwhp easy.... however i do not advise aiming at that number with stock compression.... you can easily lower it with a thicker headgasket.. 2mm or 3mm... people that are in the 400+rwhp range have pretty much all gotten the headgasket treatment.. and have been fine....

also if he wants to run up in the 400+rwhp area...i suggest 1000cc injectors...(better safe then sorry)...

the S comes with forged rods and pistons from the factory.. so upgrading these are not necessary unless you want to achieve some very high hp numbers..

 

03s2kblue,

this might sound like a very dumb question, but i've read before that a reinforced diff is almost a must when pushing serious power as acheived from F.I. .. you seem to know what you're talking about so I ask you, is this true?

 

^ it's good to have but you don't need it.... people have blown their diffs, even on a stock car... but it's mainly due to the driver.. however mutliple launches over and over again, your diff will eventually go bad....

put it this way, a buddy of mine was pushing 440+rwhp.. and then started pushing 660+rwhp.. on the stock diff... multiple launches.... he dragged his car a lot.. power slides.. pretty much abused the car.. never had a problem....

however having a reinforced diff is a nice thing to have...

 

do what this guy said LMAO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Slideways2000 &raquo;</TD></TR><TR><TD CLASS="quote">Don't listen to these haters. Run an open wastegate, try the GT42 snail, I think 7 bars of boost will be just right for that CR.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 03s2kblue &raquo;</TD></TR><TR><TD CLASS="quote">^ it's good to have but you don't need it.... people have blown their diffs, even on a stock car... but it's mainly due to the driver.. however mutliple launches over and over again, your diff will eventually go bad....

put it this way, a buddy of mine was pushing 440+rwhp.. and then started pushing 660+rwhp.. on the stock diff... multiple launches.... he dragged his car a lot.. power slides.. pretty much abused the car.. never had a problem....

however having a reinforced diff is a nice thing to have... </TD></TR></TABLE>

so true ... one of my boy got SC 9psi on his s2k with stock diff...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 03s2kblue &raquo;</TD></TR><TR><TD CLASS="quote">^ not to be a dick.. but if you read my first post... you'd know your answer..

the block is capable of handling 500rwhp easy.... however i do not advise aiming at that number with stock compression.... you can easily lower it with a thicker headgasket.. 2mm or 3mm... people that are in the 400+rwhp range have pretty much all gotten the headgasket treatment.. and have been fine....

also if he wants to run up in the 400+rwhp area...i suggest 1000cc injectors...(better safe then sorry)...

the S comes with forged rods and pistons from the factory.. so upgrading these are not necessary unless you want to achieve some very high hp numbers..</TD></TR></TABLE>

im not offended at all, thanks that was a much more detailed response. Thanks for the help

 

&lt;300whp stock internals, stock injectors, but maxing out. 4.44 gears, but not reinforced.

 

im wondering on your opinion on buyin a supercharger or to turbocharge my s2k all i want is 350hp but i want to push the limits of having a daily driver ya know and still b able to pass californias smog check if u have any suggestions it would b much appreciated.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by go’nsideways &raquo;</TD></TR><TR><TD CLASS="quote">im wondering on your opinion on buyin a supercharger or to turbocharge my s2k all i want is 350hp but i want to push the limits of having a daily driver ya know and still b able to pass californias smog check if u have any suggestions it would b much appreciated.</TD></TR></TABLE>

you can pull that number off with a supercharger.... smaller pully and some good tuning... and maybe some headwork depending on the other parts you got on your car...