A HTA 35R should spool no faster, if anything later than a regular 35R.

Scorke

 

Just replaced the .82 exhaust housing that came with the turbo with a .63 exhuast housing. Then threw it right on the AMS kit.

http://good-times.webshots.com/photo...38095062fUTHYp

There are other pics of the kit there if you want to check them out.

 

So would you expect a standard 35R to spool faster than shown on this dyno sheet\ provided the same conditions?

 

WOW 93 octane

awesome results....kinda have me thinking about ditching the fp-grn.

can you list all your mods please....this way it will give people the recipe for some amazing results!

 

2.3 ltr
Manley stroker rods
wiesco stroker pistons
4G64 crank

Head ported
HKS 280s
1mm oversized ferra valves

1000cc injtrs.

AMS turbo w/HTA 35R with .63 exhaust housing (ported)

coated header, exhaust housing, and O2 housing

TRE tranny w/exedy twin disk clutch

tuned with ECU flash and MAFT Pro in speed density form.

 

And you come up with this how considering this was the purpose of the turbo to begin with more power under the curve with similiar/same top end. Do we need to post Buschur's original dyno sheet again showing the 50ft/lb TQ improvement and improved spool?

Here is a link the FP's write up I'll let Robert's words do the talking Scorke.

http://store.forcedperformance.net/m..._Code=Turbo-FP

 

Yes, is yours a .63 or .82 A/R hotside?

Scorke

 

FP's turbo compaired to a regular .82 A/R 35R might improve tq and spool up considerably, but compaired to a .63 A/R 35R will still spool slower. Ask Buschur why they tested vs a .82 A/R 35R instead of a .63, and ask the rest of the evo aftermarket why 99 percent of people running 35R kits run the small hotside.

Because you lose so little in top end while getting the most out of the midrange/spool up.

Jasil the HTA 35R is a 35R with a different compressor wheel on it. Altering the turbine would of had a much greater effect on spool up, the HTA was created to make more power out of a 35R frame turbo, that is all.

Scorke

 

My God... are you sure you didn't drop an NA V8 engine into your Evo, 'cause that dyno chart is unbelievable.... I'm floored

 

Granted its a different dyno here is my .63 A/R 35R on pump with a 2.3.



Very similar to his curve.





Scorke

 

You can see the main difference between our graphs Jasil et al is after full boost is already made. At 5k I am making 360 whp at 5k he is making 330, I gain about 80 after that where he gains about 110, the HTA 35R compaired to a normal 35R will be very similar with more power up top, everywhere else shouldnt be very effected.

p.s. I know our dynos read very different and your car is making considerably more power than mine but the shapes of the graphs tells the story about how similar/dissimilar the setups are.

Scorke

 

I know you've probably forgotten more about cars\evos than I'll ever know, but your statement doesn't make sense to me. You make a point and have disproved it in the same post. If you dynoed on a dyno dynamics, and the curve was the same, then I'd understand. Due to the dynojet sheet, who knows if your car would produce the same curve. Yes those curves are similar, but the difference in the dynos themselves is the biggest thing against your argument to me. Comment further, because I'm always up for learning something. Seeing as I just got off of the 30R, it "feels" like it comes on almost as fast, but very smooth at the same time. Driving this car almost feels like a 30R until you realize how fast you're going in the same distance verses the 30R.

Now I know a 30R will spool quicker, but it truly "feels" like it doesn't. Like I said I just got off of the 30R two weeks ago. So it's not like I've forgotten.

 

the curve should not change from dyno to dyno.... peak numbers sure... but curve should be the same to so similar that it doesnt matter

 

If I dynoed my car on a DD dyno it would be the same shape as yours, it just wouldnt climb as high.

I had a 30R too, I think the 35R feels slower honestly. To me the place you feel the difference between the 30R and 35R is 4-7k in 3rd gear and higher. If you were to tip in to the throttle below 4k in a 30R vs the 35R I would have to assume that if both cars were going equal speeds it would take a good few seconds or a gear or two for the 35R to catch up.

My 30r was gone more than 2 weeks, about 3-4 months ago but I know what your saying,I completely agree with how similar it feels to the 30R, however I think you and I both forget exactly how much low end/mid range tq we gave up for the higher numbers up top.

Great numbers btw, car must haulllll ***!

Scorke

 

I ran the.63 hotside because I had AMS' kit already. To continue to use it, I dropped the .63 housing on it to keep down time to a minimum, plus to avoid having to buy or alter the AMS kit. That kept more money in my pocket. That's what I needed because I have a Z-28 project as well. Cash goes quick with two projects.


If I already had a kit that used the four bolt pattern on the .82, then I would have kept that. So are you saying it would have spooled slower if I kept the .82, or it does spool slower due to the .63?

Remember full boost is nothing but a target boost setting to me. So full boost is 21psi on pump gas. So full boost(21psi) around 4000 would be slower than a standard 35R using a .63 hotside?