Big T28 or Evo 16G

[SFRacingGST]

I was interested in diffrent people's oppinion on the big t28 related to the evo 16g. i know the spool up is alot faster on the t28.

 

[big green]

I have been very happy with my big28 Of course this turbo is perfect for my goals (DD, 300whp, and ocassional track days), you'll want something bigger for a stright up drag car.

 

[ShapeGSX]

I was interested in diffrent people's oppinion on the big t28 related to the evo 16g. i know the spool up is alot faster on the t28.

I don't think that the spoolup would be a ton faster with the T28.

There is only a ~250RPM difference between a T25 on a stock car getting to 15psi and my Evo III 16G getting to 15psi. My turbo gets there at just 3000RPM. A T25 in a similar test got there at 2750RPM.

The test was done by hitting the gas at 2000RPMs in 3rd gear.

I bet that a Big T28 would be pretty close to an Evo III 16G. But the Evo III flows a lot more air.

 

[ShapeGSX]

In fact, I just found a log of someone who did the same test with a Big T28. The Big T28 under the same conditions (2000RPMs, 3rd gear) hit 15psi at 3000RPMs. Same as the Evo III 16G.

In fact, the guy who did the test even had the same exhaust as my car. But he had a Supra sidemount intercooler instead of the front mount intercooler that my car has. The longer piping and bigger intercooler on my car should penalize it in terms of spoolup.

 

[gsxtacy]

Since your 2G I say FP Big28.

Number one thing to remember........"supporting mods".

Don't skimp and then complain about the lack luster performance.

Then you can always tell the ricers that your turbo is "stock" cause no one can tell its NOT a T25, unless you hold the two side by side.



gsxtacy

 

[andymoraitis]

Since your 2G I say FP Big28.

Number one thing to remember........"supporting mods".

Don't skimp and then complain about the lack luster performance.

Then you can always tell the ricers that your turbo is "stock" cause no one can tell its NOT a T25, unless you hold the two side by side.



gsxtacy

Comments like that make me want to slap a Bastard 20G on so I can still tell people "hey, it's only a TD05 housing!".

 

[DSMunknown]

http://dsmtuner.com/forums/showthread.php?t=172617&highlight=evo3
http://dsmtuner.com/forums/showthread.php?t=161279&highlight=evo3 http://dsmtuner.com/forums/showthread.php?t=177392&highlight=evo3
http://dsmtuner.com/forums/showthread.php?t=178937&highlight=evo3
http://dsmtuner.com/forums/showthread.php?t=151037&highlight=t28
http://dsmtuner.com/forums/showthread.php?t=174367&highlight=t28


or any other relative links (cuz there's tons)

Then you can always tell the ricers that your turbo is "stock" cause no one can tell its NOT a T25, unless you hold the two side by side.

is that so true. never thought of that good stuff

 

[98GSX_MTX]

I own an ported FPBIG28 w/17PSI actuator. I have a stock 7 bolt motor. The best air flow I have gotten (cold day) was 35LBS/MIN @ 20 PSI. I usually get about 33LBS. With cams you can get a few more LBS out of it. The most I could get out of my T25 was 26LBS.

(this formula is standard for a DSM)

T-25 = 26 * 11 = 286 crank HP

FPB28 = 33 * 11 = 363 crank HP

If you have goals of 400WHP then the big 28 is not the turbo for you. Cranking the boost above 21PSI turns it into a flame thrower. That being said at 3000RPM when I nail on it there is next to no lag.....it honestly feels like a 75 shot of nitrous on a T25.

The EVOIII16G has more top end than the FPB28 and it spools pretty close to the 28. The difference is it takes the EVO a tad longer to work the same LBS of air. The big28 seems to have almost instant airflow. At about 6600RPM the B28 starts to run out of breath but the EVO will keep pulling. If you run your car to rev limiter then you might want to go with the EVO. If you like all wheel drive burnouts without dumping the cluch you can consider the B28.

If I had to do it all over again I would get the EVOIII16G. The bolt on aspect is very minor. It might take you 30 minutes longer to install the 16G. But for a normal guy the B28 is plenty.

 

[daren_p]

There have been a tonn of post on these 2 turbos in the past few months so do some searching to find out which one meets your goals better.

t28 is true bolt one for the 2g, looks the same as the stock turbo if you want a sleeper. Spools up slightly quicker then the evo & makes most of its power/torque in the lower end, still has much more top end then the t25 but runs out of steam compared to the evo.

Evo you need an install kit, but the turbo itself is cheeper so they end up coming to about the same price in the end. Lose abit in spool up but have a much stronger top end and is still efficient if you start running 20+ psi where the t28 is not. The evo will give you a higher hp potential.

My personal vote would be for the EVO

PS I thought it was 1 lb/min is 10 hp? 286 seems kinda high for the t25, unless you have cams.

 

[tonygst]

just go back to the T25. I have much more to say but cant seem to say it. . .

 

[98GSX_MTX]

I thought it was 1 lb/min is 10 hp? 286 seems kinda high for the t25, unless you have cams.

Thats peak HP .....but either way its close enough.