GOLDBERG

hey geoff..could u post the psi's of those dyno graphs next too em?

Devine

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mpir3 &raquo;</TD></TR><TR><TD CLASS="quote">

Isn't that 300whp @ 6700rpm's? Xotic's sheets always get confused.. </TD></TR></TABLE>

Thats the torque that you're looking at, hp is the lower line

Phoenix GSR

how much boost is the T4/T67 running on dyno #1.. boostfeds car... with the t4 hotside on a 1.7 it hits full boost at about 7500 rpm.. that seems very reasonable to me for a little engine with low compression and a huge turbo runing a lot of boost

BoostedsiR

WOW I just learned a lot

TurboJesse

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Devine &raquo;</TD></TR><TR><TD CLASS="quote">

Thats the torque that you're looking at, hp is the lower line </TD></TR></TABLE>

yes i know that, thats why i said its making 300whp @6600rpms

Rhman19

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Phoenix GSR &raquo;</TD></TR><TR><TD CLASS="quote">how much boost is the T4/T67 running on dyno #1.. boostfeds car... with the t4 hotside on a 1.7 it hits full boost at about 7500 rpm.. that seems very reasonable to me for a little engine with low compression and a huge turbo runing a lot of boost</TD></TR></TABLE>

That was on 27-28 lbs. I looked it up in his post to confirm.

Kataku2K3

Nothing special but just a little clip of Brian's B18C/EJ6 (T4/60-1) on like 20lbs... This is probably around ~500whp on 17's, turning onto the on ramp in second... He doesn't let it tap off the limiter (shifiting at 7-7500rpm) so the wheel speed never has time to catch up... You can see how much harder it hits in 4th right when we let off... 600whp+ is even stupider on the street as you can spin 5th when it hits, hehe

Right Click and Save Target As
Brian Boost.mpg ~4.2mb

chidoks

geoff, arturbo or anyone, how would an h22 with say a redline of 8200rpm react to a t4/t67...of course it would be with a 3 inch downpipe or bigger.... Compression is going to be about 9.0:1CR... What is the hp potential of a setup like this? When would i start seeing boost and approximately when would i see full boost? What size turbo would u recommend if i was shooting for say 600-650whp?sc61,sc63,t3/t67, t4/t67? It would be nice to have something that can maintain its street driveablity.. I would want to hit my power potential or at least know i can if i needed to but still i would like to make a decent amount of power on the street... i dont want just a highway monster...

Kataku2K3

We've run the T4/67 on 2.0L motors (all B series tho) and it's worked just fine... The max spool rate normally comes about at ~6500rpm (full boost ~30lbs. at 7600rpm), the thing is you we rev atleast 1-1500rpm higher than what you're looking at... Though you're motor is able to flow more, ithe T4/67 probably isn't going to be the most efficient reving to 8200rpm, shitty H22 R/S... I really just need to look into the compressor map, which I don't have ... The SC63 would definately be better for spool time, etc. but you're getting close to maxing out the compressor with the power you are looking for... Sorry I can't help you more right now but I'm sure F-R Geoff or Arturbo will be able too... Good Luck


Modified by Kataku2K3 at 12:01 PM 1/15/2004

Mr. Softee

my $.02

both turbos are not exactly lag friendly. Let's face it, past 20psi these things arent spooling up before 5k. It seems to me that if you are going to chose a top end shining turbo, chose the one that gives you a more usable top end torque curve. It doesn't make sense to have more efficiency in a place below where you will fall when you shift. Comparing the torque curves generated from the sc61 vs. t3/67 its obvious the t3/67 humps at a later RPM. This is natural from a larger wheel. If I had to chose, I would chose the turbo that humped later as the power would be more usable when racing. Because in neither case will the power be usable when daily driving, it makes no sense to chose the lower RPM humping torque curve, or to even use that fact as an advantage of the turbo. Because of this the t3/67 is a better choice imho. The 67 seems to fill the niche of the 500whp honda perfectly...

chidoks

so this would be classified as a t4/t67 right? http://store.yahoo.com/cheapturbo/garrettto4r.html (66.5mm inducer flows 75lbs/min, T04R compressor, .70A/R, t4 turbine) doesnt say anything about hp potential...


and
this would be a t4/60-1 right?
http://store.yahoo.com/cheaptu....html (Compressor: T04S, .70A/R, 60 Trim wheel).. It doesnt say anything about the flow characteristics or hp potential...

boosted92

No, a TO4R would not be classified as a T4/T67, it would be classified as a TO4R. The wheels may be of similar sizes but power output and efficiency ranges can vary greatly for similar wheels. And normally people don't say T4/T67, they'll just call it a T67

Rhman19

What kind of boost is that car making 585 hp running Geoff??

Arturbo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted92 &raquo;</TD></TR><TR><TD CLASS="quote">No, a TO4R would not be classified as a T4/T67, it would be classified as a TO4R. The wheels may be of similar sizes but power output and efficiency ranges can vary greatly for similar wheels. And normally people don't say T4/T67, they'll just call it a T67 </TD></TR></TABLE>
Actually the T04R is the same exact turbo as a FR67 or PT67. The HKS T04R is the exact SAME thing as a PT67 with a P.trim turbine wheel. But HKS sells these for $2935.00!!!!

The only difference between PT and HKS is the housings, and PT is alot cheaper.

It really bugs me when people think they have some special turbo with secret specs when in fact that isnt the case. In most cases I can figure out what turbo it is. Ask boostfed..

art

espanol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arturbo &raquo;</TD></TR><TR><TD CLASS="quote">

In most cases I can figure out what turbo it is. Ask boostfed..

art</TD></TR></TABLE>
..and that's why your the guy to buy turbo's from i don't see spark racing giving anyone that kind of expert service

chidoks

I thought it was the same turbo too... I guess I was right....

slvrstns2000

that was a zing from art-- haha

DIRep972

iTrader: (1)

haha, Art, I was just about to post that last night but I got a lil distracted.

Im looking at the dyno's geoff posted and even though the #'s are good im not seeing anything better then what the SC61 has already done... The SC61 has produced so many 400+ pump gas set ups and 500+ race gas set ups that have been turning times on the track all year long.. Almost two handful's of cars in the 10's and even the drag radial recored holder is running an SC61.. If that doesn't earn credit then I don't know what does! So far I am just not convinced that it works any better w/ the T3 and stage 5 turbine then a 61 w/ a T3 and stage 5 turbine. I still think the exhaust side is whats limiting these things.

Full-Race Geoff

they dynos posted are all at lower boost levels than an equivalent sc61.

also i dont expect *one* plot to sway your mond thats why i asked you guys to post more!!!!

*Boostwerks*

I also think it should be stated, that the SC61 has been out a little longer than the T3/T67...So I'm sure there is more actual evidence thus far supporting the SC61's performance.

GOLDBERG

bump

JDogg

so how much hp does it take to spin tires in 5th gear.... 225.-40-16's i think is what we were running.. 4th would smoke em down, 5th would spin noticibly....... ie.. the mustang we just raced stoped to tell us we were spinning at 130mph as we blew by him cause we didnt feel like downshifting. that was at 16psi on a 7.8:1 2liter b16 with sc61.

how much power does it take to run 100mph in the 1/8th.

i like the sc61, it will make way more power than ANYTHING needs on the street. im prolly not qualified to say though, i have never done anything with the t3/t67

boosted92

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDogg &raquo;</TD></TR><TR><TD CLASS="quote">
how much power does it take to run 100mph in the 1/8th.

i like the sc61, it will make way more power than ANYTHING needs on the street. im prolly not qualified to say though, i have never done anything with the t3/t67</TD></TR></TABLE>

Asuming a 2400 pound race weight, it would take around 325 WHP to do 100 in the 1/8 mile. I agree with you on the SC61 bit (atleast for a FWD honda), there is no way you are going to really utilize 500+ WHP on the street so why go with so big of a turbo.

Turbo R

good tech info

Turboed ED7

Well the only thing i can say about having a bigger turbo is more usable power. My 1st turbo was a T4 with a .60ar compressor and a .58 turbine. granted it is much smaller that the 60-1 but i think there is still somewhat of a comparison.My hatch with a stock b16 on the AFC hack ran a 13.5 at 108 on 4.5 psi. My friends ls hatch with drag kit on it running 9 psi only hit a 13.7 and at a lower mph. I credit my better time to the power coming on once i got moving instead of right out of the hole. That was at the track now on the street i gave up alot of cars of the line but when i hit 3rd gear i blew by everyone like they hit the brakes..using the power were i needed it once i got moving instead of running out of steam and the middle of the race. I know a T4 isn't even close to its efficiency rating at 4 or 5 psi but its just and example i though you guys might want to hear. Last but not least do i feel there comes to a point were going bigger is to big ..yes i think anything bigger than a 60-1 with a T4 turbine on it will be way to laggy to ever when you a light to light race. i think the only thing you really sacrifice by using a T3 turbine on a 60-1 or a T3T67 is a little trap speed and the larger compressor will allow you to get moving and use that power.