Hi all. I've already ruled out the RX6, simply from a parts avail standpoint. I live right near XS, so they're the logical choice. So now, I'm stuck deciding between the E or the S. From what I've seen on all the dynos, the torque curve on the E is flat from 4k to about 7k, which looks great. On the S, it's about 4500 to to about 7k. This makes both appear useable for my purposes, with the E having the range and the S having the power advantage.

My big question is, what am I not seeing? Is the throttle response going to be much quicker on one than the other? Is there something else I'm not thinking of? Any help would be appreciated.

One more question: part of going this route is that I hope to reduce the load on the cooling system, by getting rid of the twins. Is this true? and is the XS kit a wet bearing turbo (or can I order it either way)?

 

The T04E is very close to the Apex in terms of performance... the T04S will likely lag a little more... I can't say for 100% since my car isn't running yet....

Brian

87 TII
93 R1 <--- T04S almost done

 

Thanks, Brian. I have another question...
on the dyno graphs you posted:



It appears that the T04e @ 14psi with street port underperforms the T04e @ 13psi w/o street port. Is this the reality of this port/turbo combination, or do you think it's just a matter of one car being better tuned than the other? I'm going with a street port and a single this week, but this is giving me pause....

 

You can't use those graphs to say for SURE which is better... they are an estimate... Maybe the ported car was tuned more conservatively? Perhaps the non ported car was done on a 40 degree day vs 100 degrees for ported? Maybe one had a better intercooler?

These graphs are for just kinda checking out what TYPE of performance you might get .... You can't compare them too closely without knowing EVERY variable... Just use them for a rough idea....

I think that porting is a good idea!

Brian

 

XS to4e kit with main cat. I think I need it.

 

XS to4e kit with main cat. I think I need it.

 

dyno with PFC, HF Cat, M2 med IC.

I still can't see the pic of the dyno run????

 

The pic of the T04E run by XS Eng is on their site at http://www.xs-engineering.com/fd3sdyno-torque.html

 

Yep, it's that torque curve that's got me thinking T04e is the way to go, I just wonder if it's better to give up the the power of the T04s for the flatter torque and broader range of the E:

 

Well, decision made, I got the E. I figured it was the right one, I just hoped someone would come in and say "Stop, what you really want is an R and I can show you how to make smooth, lagless power to 1200hp!"

Thanks, guys.

 

I think you made a good choice.

Ken, 57 years young
'94 white, base, pep, red leather,
mods: Hayes street port & polished stage II, Hurley 3mm racing seals, PFS PMC(10-15psi), XS T04e single turbo kit, Aquamist 2s water injection kit, Pettit ss resonated MP, Pettit ss cat-back, RP Racing fuel pump, 1200cc injectors, Profec B(10&15psi), Centerforce clutch, under pulley kit(no air pump), Pettit short shifter kit, boost gauge, LaBreck's bushings, Evans Coolant

 

Thanks, Ken. That really means something from a guy who's got that turbo. Can't wait to get the car to the track with the new turbo!

 

LUV94RX7


What IC are you running I have a TO4e kit coming.

Later, Jeff

 

Ummm..... I run the T04S w/ apex'i FMIC and at 14lbs I mad 425 to the wheels... this is my daily driver .
I dont have the sheet scanned but i can give you the points on mine and you can graph it in your head or something

RPM HP TQ
3 75 140
3.5 125 175
4 160ish 215
4.5 200 238
5 240 250
5.5 275 260
6 325 275ish
6.5 360 290
7 400 298
7.5 398 275

Ill list my mods below... good luck,
Ryker

 

Jeff, Ken's looking for a medium-sized smic in the for sale section, so...

Ryker, thanks.