Big28 Killer installed

[-=TWITCH=-]

I think IM going to go with the T-28 killer also! You cant beat tc.com and I have only herd good things about the turbo. I like the fact that boost is more gradual than the regular t-28

 

[Black95TSIawd]

With the bigger housing then the big T28, it shouldnt get heatsoaked as fast and last longer for a couple more runs down the track/street.

 

[DARTHTURBO]

how much boost dose a stock 1997-1999 eclipse gst make totaly bone stock i heard 8 psi 10 psi 14 psi how much dose it make cause this is been impossible to find out bone stock no mods stock boost pressure?

 

[Mr96GSX408]

spikes at 13psi and settles down to 10psi

 

[RuBiCaNT5X]

12 I thought was the stock boost for the 97-99 GST/GSX..

 

[Goblin]

My GSX was running 11psi bone stock except for the boost gauge I installed (obviously if I know it was running 11psi).

 

[Boosted98gsx]

guys, keep this thread on topic. This is about a turbo upgrade, not stock car statistics.

 

[DARTHTURBO]

Originally posted by DARTHTURBO
how much boost dose a stock 1997-1999 eclipse gst make totaly bone stock i heard 8 psi 10 psi 14 psi how much dose it make cause this is been impossible to find out bone stock no mods stock boost pressure?

while i got a bunch of aswers 10 11 13 cause i heard for every psi you up you get 15 horsepower i thought it was 8psi so is it about 10psi
cause i am totaly confused i appreciate the replys but i just want a definate aswer so i dont blow up my car when i adjust the boost

 

[turboboy]

Originally posted by Boosted98gsx
guys, keep this thread on topic. This is about a turbo upgrade, not stock car statistics.

Originally posted by DARTHTURBO
while i got a bunch of aswers 10 11 13 cause i heard for every psi you up you get 15 horsepower i thought it was 8psi so is it about 10psi
cause i am totaly confused i appreciate the replys but i just want a definate aswer so i dont blow up my car when i adjust the boost

Can't you read man. Post your own topic if you want answers. Stop whoring this guys thread.

 

[stangtt]

Originally posted by twistedtsi
stangtt u have a stang with a twin turbo kit? my sister boyfreind has the same in his stang i have never been in a car as crazy as that thing its all street and the ####in thing is in the low 10's high 9's? if u do have a twin turbo what turbos are you using?? i think he has the t-66 tt not sure

Mine is running twin TE-44's. The car has been in storage for 2 yrs now. I just haven't had the time. Last time I had it to the track I got 2 passes. The first was a horrible 12.34 @ 80mph. In typical Ford fashion something went wrong. The intercooler pipe at the throttle body blew off and I coasted through the traps. My second run went much better after some hairpsray secured my pipe. I got a terrible lauch and a 2.0 60 ft. trying not to break my feable T-5 trans. I ended up running a 10.34 @ 134. Not bad for spinning through 3rd in a heavy ass convertable! My car didn't have the proper safety equip to run those traps, so I couldn't attempt another run. But I felt pretty good knowing I hadn't tuned it all that well and I was able to drive it home in one piece. .

Alright sorry for the ramble... Yes indeed my GSX is an auto. It sucks worse then any other auto I have ever driven. . But it sure is nice in the frequent Jersy traffic jams.
I ended up putting the cat back on, and welding in a dynomax bullet. It was just too harsh and raspy for my taste (and the audiophile SQ sound system) with the testpipe. Its still a bit too loud, but hey what can ya do? Its all about compromise in a daily driver.

The cat again stole about 2 lbs of boost. It no longer creeps to 24 psi. Now it spikes to 20 and settles to 18 and hold till redline. Without the cat is spiked to 23 and settled to 20 then creeped to 24 at redline.

Hey, and no more whoring my T-28 KILLER thread!

Later

 

[asian312]

In reply to DARTHTURBO, u can't estimate the HP based on psi alone in any way, shape, or form unless comparing psi reading from the same turbo. Every turbo will be different. Just a few aspects to take in consideration:

1) supporting mods

2) 20 psi from a T25 will produce less power than my Eliminator at 10 psi

Someone mention heat soak? Ask Andy, I've seen his turbo mani glow. If u push a car hard and keep that turbo under load for long perios of time (all the way down say Westhiemer) it will heat up.

Sorry stangtt I'll get back on topic. How's your car doing? Any new track times or numbers?

 

[Black95TSIawd]

a t28 would be less prone to heatsoak because it has the larger housing to fit the bigger wheel. From what i hear, a t28 or fp28, uses the same t25 shell extremely ported out to fit the bigger wheel. I would much rather have a little slower spool up but a turbo that would last me racing all day instead of being done after a couple runs.

 

[stangtt]

Originally posted by Black95TSIawd
a t28 would be less prone to heatsoak because it has the larger housing to fit the bigger wheel. From what i hear, a t28 or fp28, uses the same t25 shell extremely ported out to fit the bigger wheel. I would much rather have a little slower spool up but a turbo that would last me racing all day instead of being done after a couple runs.

I'm assuming you meant the T28 "killer" would be less prone to heat soak right? It uses the AiResearch housing that dwarfs the little T-25 comp housing.
heat soak also depends on the efficiency of the comp wheel as well. From what I've heard, the garrett wheel in all the big28's is very efficient, slightly more then the big16g. So it may even out in the end.
That is why you get a nice front mount. No more heat soak worries!

 

[Mr96GSX408]

StangTT, how fast is your auto GSX with the 'killer' strapped on?

 

[Black95TSIawd]

yea i meant T28 killer. Maybe i should read this thing over before i post.

 

[stangtt]

Originally posted by Mr96GSX408
StangTT, how fast is your auto GSX with the 'killer' strapped on?

I haven't had it to the track. But I have had a few encounters on the highway with some LS1's among others, but they were the most challenge. A couple of WS6 Trans-Am's and an SS Slomaro. I didn't have much trouble putting a couple car lengths on them from 60-120.

 

[JayHass]

Originally posted by stangtt
From what I've heard, the garrett wheel in all the big28's is very efficient, slightly more then the big16g. So it may even out in the end.
That is why you get a nice front mount. No more heat soak worries!

Did you mean the small 16g? The big 16g is a very inefficient compressor due to the size correlation of the wheel and housing. IIRC it's somewhere down in the high 60% range where the small 16G is about 77%. 10 points is large when talking compressor efficiency.

 

[SoCaliEclipse]

so i havent read this whole thing, but i didnt see any part where you talked about what wheels you went with. from turbocharchers.com, you can either get the big16g wheel or the 18g.......i am getting the killer as well, but i am getting it with the 18g wheel, one person that i have talked to said that it was just enough lag to keep the tires hooked up even for the most part in 2nd as well......just curious which wheel you went with......awesome reviews tho!
Brian

 

[Turbo]

So what happens when you put it in a larger more efficient compressor housing ?
Despite a compressor wheels given efficiency rating ....... that does not change the fact that it will flow more cubic feet per minute than another compressor wheel.

 

[SoCaliEclipse]

i don't know all the technicalities and ins and outs of turbo efficiency, but i do know that even for the sake of a little more lag, i would most likely chose the 18g.....but i do believe that whenever you use a more efficient compressor wheel, then yes you will get more flow. since like you said, you might be maxing out the housing as it is, it might not be much of a difference, but a difference is a difference to me!
Brian

 

[JayHass]

Originally posted by Turbo
So what happens when you put it in a larger more efficient compressor housing ?
Despite a compressor wheels given efficiency rating ....... that does not change the fact that it will flow more cubic feet per minute than another compressor wheel.

The wheel's efficiency rating is not separate from the housing. They are one in the same.

The relationship between the wheel and the housing is hard core fluid dynamics engineering. Like I've said in the past, when my friend Rob who works for Garrett show the calculations and shares his opinions it becomes painfully obvious how little 99% of the turbo shops actually know.

Just stuffing wheels into a housing is really a crapshoot. Unless we have a test bench like Rob does at work, there is no real way to map out what you end up with.

For all we know, the end result is a high flowing compressor that is in the 40% efficiency range. (See the Super 60 for a good example of crap, meatball engineering)

 

[Turbo]

In the Big28 Killer turbo , it comes with a Big16G compressor wheel.
In the Eliminator series turbos, you can however get the 16G , Big16G, 17C, 19C, 18G, 20G, 46trim ....
in the TDO5H Turbine wheel configuration. Extra for the TDO6 & TDO6H
turbine wheel configurations.

 

[SoCaliEclipse]

So its the T28 eliminator that has the 18G compressor wheel? if so, is what i heard correct that its the same price???
thanks

 

[DCJ98GST]

Originally posted by JayHass


For all we know, the end result is a high flowing compressor that is in the 40% efficiency range. (See the Super 60 for a good example of crap, meatball engineering)

That is why I wont be the first one to buy a new turbo. I like to hear from at least a half dozen people that have had good experiences with a new turbo before I would buy it. I especially like to hear from people that have tried these turbos alongside others like the FPBig28. There are a couple of guys that have swapped the killer and the FPBig28 on the "other" site, and said that the killer pulls harder.

On the subject of the compressor charts. The maps are showing the efficiency of the compressor wheel and compressor housing together, right? That is what I always assumed. But the turbine wheel and housing have a lot to due with compressor surge and efficiency of the exhaust energy use. The efficiency on these charts are showing the effectiveness of moving the charged air only. Therefore they have to used with the knowledge that the "hot" side can support the "cold" side.

Wade or anybody else who knows:

1. What is the A/R of the compressor housing used in the Killer?
2. How does it compare to the 16G compressor housing for the standard Big16G wheel?

If it is bigger, then maybe the efficiency islands on the Big16G charts are better than what is shown.

 

[machron1]

I like this turbo, but I haven't been able to dial out all the compressor surge. I've tried the Greddy Type-S and HKS SSQBOV. I think the turbine side might just be too small for the compressor side, so it's especially sensitive to surging. Other than that, it's great. I really only get surge while lifting the gas only partway so that the butterfly in the throttle body isn't closed all the way, & not enough vacuum is made to open the BOV. I've had the turbo on for over 10,000 miles & it hasn't blown up (yet) ::crosses fingers::

I followed turbochargers.com advice & replaced all the oil lines & gaskets, water lines, etc. I also only ever have run Mobil 1 10-30wt full synthetic. I think that's why my engine is going strong @ over 130K miles, no CW, and my t-25 was still working when i took i swapped it for the t28 killer.