49 replies to this topic

[fwdGTP]

I've never posted on this forum, but decided this would be a good way to start.

So first off, the car has 207k Miles, original Engine/Turbo/Trans...

Mods: Speed Tuning Stage 2 ECU, OBX Turbo Back Exhaust, 350cc "White" Injectors, MBC (18ish psi dropping to 15-16 at redline).

I am running a 50/50 to 60/40 blend of E85 & 91 Octane

Numbers came out to 222-224whp Highest Torque reading I could get was 261 because of the auto making it hard to dyno.



Notice how my max power was at 4200-4400, If I could have gotten on the throttle that low. Torque probably would have been some crazy number if I could have started at say 3k rpm.

I'm assuming it's normal to have no power up top with a 15G, especially one as old as mine lol.

I'm between 175-190whp at 6k rpm, but there does seem to be a slight spike in power between 5600-5800 maybe it's from a shift or something, idk lol

The car runs well overall, sometimes has misfires on automatic downshifts, mainly only at wot, I believe because of Torque Managment.

My best time at the track on the current setup is 13.79 @ 100.8 mph. On the same setup but with stock injectors and 100% 91 Octane the best I could run was 14.31 @ 95.2 mph but would average 14.5ish.

I'm planning on getting either an 18T or 19T, then maybe I could hold 270-280whp from 4k to 6k rpm

[Jardim]

I seen that thing run before lol

[fwdGTP]

Jardim, on 31 January 2012 - 09:24 AM, said:

I seen that thing run before lol

I wouldn't doubt it lol

[Mesoam]

You don't need white injectors for a 15g, track conditions and improved driving skills were probably the largest contributors to your better runs not just dumping more fuel in.....IMO

Edited by Mesoam, 31 January 2012 - 03:03 PM.

[fwdGTP]

Mesoam, on 31 January 2012 - 03:01 PM, said:

You don't need white injectors for a 15g, track conditions and improved driving skills were probably the largest contributors to your better runs not just dumping more fuel in.....IMO

E85 requires more fuel.... lol. About 28-30% which is why I run 50% because that effectively makes the whites the same as the stock injectors.

.5 x .28 = .14 350/1.14 = 307 ~= 315

But it most certainly made the car faster, it is completely noticeable, seeing as the car will spin the tires anything 40 and under in 2nd gear. I have been to the track at least 10 times before switching to E85 and my first run on E85 I went 4 tenths and 5 mph faster, which is something better driving or conditions cannot account for, especially in an automatic car.

[dublin14]

Those are very decent numbers! But.. its just another example of how choked these Mitsu OEM Turbos are. Peak HP at 4400rpm is low.

[fwdGTP]

dublin14, on 01 February 2012 - 01:23 AM, said:

Those are very decent numbers! But.. its just another example of how choked these Mitsu OEM Turbos are. Peak HP at 4400rpm is low.

Thanks, I believe for a 15G its pretty quick.

But yea the stock turbo, or any TD04 in general are pretty weak, I'm almost tempted to just got with something different all together, but its my daily driver with a lot of miles and I don't really want it blown up at the moment lol.

[Mesoam]

I didn't see the E85 part

[dublin14]

fwdGTP, on 01 February 2012 - 02:54 PM, said:

Thanks, I believe for a 15G its pretty quick.

But yea the stock turbo, or any TD04 in general are pretty weak, I'm almost tempted to just got with something different all together, but its my daily driver with a lot of miles and I don't really want it blown up at the moment lol.

Grab a K24. You should see around 300whp and the pwr shouldnt start droping till around 6K.

Edited by dublin14, 01 February 2012 - 08:52 PM.

[BoostedS70]

go t3/t4 50 trim .63AR just keep the boost low. the power band will be entirely different you wont make full boost till around 3000-3500 but when you do hold on to ur pants lol. my friend put down 390 tourque with his 50trim on stock internals. td04 are really no good the exhaust housing are super small which makes them spool fast but also kills them up top. i heard the 19t and 18t pull good up at red line but again the boost is very unstable and very prone to spike. the 50 trim is just to damn big to even make power befor 3500. you could also go .48 ar if you wanted it to spool faster good luck.

[fwdGTP]

BoostedS70, on 01 February 2012 - 04:48 PM, said:

go t3/t4 50 trim .63AR just keep the boost low. the power band will be entirely different you wont make full boost till around 3000-3500 but when you do hold on to ur pants lol. my friend put down 390 tourque with his 50trim on stock internals. td04 are really no good the exhaust housing are super small which makes them spool fast but also kills them up top. i heard the 19t and 18t pull good up at red line but again the boost is very unstable and very prone to spike. the 50 trim is just to damn big to even make power befor 3500. you could also go .48 ar if you wanted it to spool faster good luck.

I've actually been thinking of going this route, I'm trying to keep costs to a minimum though lol. I may go with one of the godspeed ebay kkr turbos and have it balanced.

[BoostedS70]

i got my 50 trim from http://godspeedproject.com for 200$. ive had 2 turbos from them not including this one, and they work great. my dsm had 40,xxx hard miles on a super 20g and didnt smoke or anything. ther cheap and whites should be fine up to 15 psi or so. just make sure u have a good boost management. i use a gizzmo IBC-R that is by far the best boost control for the price lol. and you can go internal gated just make sure you have an atp ultimate wastegate and garret 11psi acctuator. all in all ur looking at a between 700-1200 to have everything depending on how crazy you wana get.

[dublin14]

fwdGTP, on 02 February 2012 - 04:18 AM, said:

I've actually been thinking of going this route, I'm trying to keep costs to a minimum though lol. I may go with one of the godspeed ebay kkr turbos and have it balanced.

The DP has to be changed or modded for the flange - custom oil return line - new oil feed line - Manifold has to be sent out for machining - WG actuator & Uiltimate internal wastgate, bracket ect - Then the cost of the Turbo.

K24 is basically a bolt-on and youre done - 300whp- and much cheaper. Depends on what you have to spend though.

Edited by dublin14, 03 February 2012 - 01:33 PM.

[fwdGTP]

dublin14, on 02 February 2012 - 04:55 PM, said:

The DP has to be changed or modded for the flange - custom oil return line - new oil feed line - Manifold has to be sent out for machining - WG actuator & Uiltimate internal wastgate, bracket ect - Then the cost of the Turbo.

K24 is basically a bolt-on and your done - 300whp- and much cheaper. Depends on what you have to spend though.

Thanks for the info, pretty much what I had expected, haven't really looked much into the K24, last I checked it wasn't really a direct bolt in, and if I had to do a bunch of stuff to get it to work I might as well go with something more efficient. But it really depends what I really feel like doing in the end lol.

[dublin14]

fwdGTP, on 03 February 2012 - 12:41 PM, said:

Thanks for the info, pretty much what I had expected, haven't really looked much into the K24, last I checked it wasn't really a direct bolt in, and if I had to do a bunch of stuff to get it to work I might as well go with something more efficient. But it really depends what I really feel like doing in the end lol.

Going by what I just did on my car, the K24 I had sitting at home would have been much easier to do. I built my motor to handle 500+hp, so I went with a PTE 5031E (50 trim) as I'd like to have 450bhp out of her. I think the K24 is great turbo for DD. Wicked spool and 300whp in a 3400lb car is an STI, 335i, S4 eater. Even a V8 M3 will have a hard time from a roll.

Edited by dublin14, 03 February 2012 - 04:39 PM.

[-Matt01]

screw the turbo for now, fork out the money (+/- 800$) and manual swap it, surely you'll gain some HP just there.

[BoostedS70]

-Matt01, on 03 February 2012 - 02:55 PM, said:

screw the turbo for now, fork out the money (+/- 800$) and manual swap it, surely you'll gain some HP just there.

I agree that a manual swap is probaly the best modification out ther. i work at an independant volvo shop in LA and i did a full swap on my s70 a few months ago and it cost me well over 1000$ and only about 300 of that was the pedals trans and shifter. plus thats with 25% discount at volvo. also you dont have to machiene the manifold to fit a 50trim obx makes a t3 adapter that bolts onto the manifold costs 20$ on ebay. DP is easy just get a turbo with a v band DP flange. and oil lines are pretty cheap 2 and you can fab up a return line. it is alot of work but well worth it in the end.

[Fudge_Brownie]

-Matt01, on 03 February 2012 - 02:55 PM, said:

screw the turbo for now, fork out the money (+/- 800$) and manual swap it, surely you'll gain some HP just there.

Even assuming there is a 5% powerloss difference between auto and manual (lets say 15% loss and 10% loss, though I've yet to see any actual verifiable numbers), that's 12hp difference on a 240bhp car. Manuals are for people who want control over their shifting, clutch, and the feel of driving a stick shift car. Yes, there are minor power gains. But the idea of swapping in a 5speed as a power gain is ridiculous.

[Jardim]

Well besides the drivetrain loss difference, you also gotta think that more gears means quicker accel if your good a quick shifts.

Auto tranny for example. In my 94 T5. (speeds at redline or when power drops)

1st: 43 mph
2nd: 75 mph
3rd: 110ish mph
4th:???

Then manual

1st: 35 mph
2nd: 63 mph
3rd: 95 mph
4th: 120ish
5th: ????

I mean it's gotta help at least a little bit, it's honestly not needed right away, the car will surely be fun with a good suspension, tune and exhaust. When you get bored of that and plan going over 300whp then a manual swap is definetly debatable, but its not something you need to worry about now. If your gonna be running your car hard add an external tranny cooler so you won't seize it.

Before anyone says something about the info in my sig in contrast to what i just said, my auto blew up so why not do something i was gonna do later anyway?

Oh lol i forgot who's thread i was posting on.

Yeah FWDGTP you might wanna do a manual swap, if you plan on running that rather than the GTP.

[Fudge_Brownie]

So what you're saying is, even if you trap 120, an auto shifts 3 times and a manual shifts 4 times? It's been beat to death. There are pro's and con's. And if you're interested, the number estimations you posted are documented somewhere around here, sourced from VADIS.