328rwhp and 314 ft lbs baseline run

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MidnightSlide
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It is fast, but the rev limiter is just too low... i need more gear...


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Movingviolation240
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KA's feel fast, a lot faster than the SR but at the track it will get owned. They do make a lot of torque though, a whole lot. But the SR will make more HP and to it with a LOT less 'stress' (i.e. no replacing headgaskets on a monthly basis and no honey roasted internals). Jay had the most badass KAT around and he is SR now, actually he's done 3 SR cars, I don't think he'll ever go back. That says a lot right there IMHO.

Paul

Paul

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MidnightSlide
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Hmm..yeah..5psi to 5psi the SR will get owned... i beat an sr'd 240 on only 3psi.... but a ring took a crap on me that night lol... so i am in the process of rebuilding the block... I'd buy the sr in a second just for the reliability.

GTS4-R
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yea exactly the motor is unstable with a turbo.....i mean u blew a ring at 3 psi.....we can run 14......plus obviously ur turbo is MUCH larger than the T-2small......race an sr with the same turbo u have on it at the same boost level with the same setup and see who gets owned

GTS4-R
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PS i'm not dissin KA-T.....they're phat in their own way too....I'm just stickin up for SR's

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MidnightSlide
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lol that's respectable...but i still think even with the same sized turbo the sr will get walked on... onl;y because of the difference in size of the motors.. torque monsters they are...yep yep... i'd trade all the torque for reliability any day. I am doing an rb20 swap in a week or so... muahahahah.... so yea... ima c how that does... people talked me into it. Cheaper and more powerful than the sr.... and 2 more cylinders... that has gotta sound cool...

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Movingviolation240
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The size of the motor dosn't matter as much as the flow of the head, the KA head quite frankly sucks, the SR flows so much better, add on top of that a better intake manifold and ignition system.

Jay's old KA-T was slower at 20psi than Ken's SR at 17psi. And by slower I'm talkin over a half second. Both were running T3/T4's and a FMIC, fuel, dp, exhaust ect. The KA-T had pistons, rods, and a custom intake manifold, while the SR was totally stock inside.

KA's make torque, but that's about it, they always get owned on the dyno by the SR powered 240's. Mod for Mod pound for pound the SR will wipe a KA's clock.

Paul

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MidnightSlide
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lol...sweeeeeet.... my friend keeps trying to steer me towards the rb20, and all my other friends try to steer me away... i think ima just go sr, and do some upgrading.. that should be plenty reliable..and plenty fast. The stock sr feels a bit slow but it is very smooth, and i love the long gears...

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float_6969
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If you like long gears, come drive my CA....

Nathan
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It's unfortunate there aren't more KAT's out there, I'd love to see a matchup of at least 10-20 similarly matched SR powered and KAT powered cars just to see how they did against each other down the 1/4. I have my own feelings but I would LOVE to have a good amount of verifiable evidence no matter which way it pointed:) Good job Paul, update us once you get everything tuned and lay down some even better numbers!

Phax
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Movingviolation240 wrote:The size of the motor dosn't matter as much as the flow of the head, the KA head quite frankly sucks, the SR flows so much better, add on top of that a better intake manifold and ignition system.


:Werd

Just because you can turbo a motor, does not make the motor a turbo motor. The SR20DET was designed from the ground up to a turbo motor. The KA24DE was designed to go into trucks.

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Movingviolation240
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In australia they call the SR the 'truck motor' because the CA revs higher. I did have a fully built CA that was a 1.9 and spun up to 9,000rpm's. I've driven 400rwhp fully built KA's that are workin just to spin 7200rpm, and I've driven my basically stock internally SR (just cams and RAS on the internal side). The KA is a lot of fun to drive, and it looks quick (sideways a lot) but the SR is far and away the fastest track car I've had my hands on. The SR is pretty lame with the T25, but once you step up to somthing man sized it really comes into it's own. Don't even get me started on that crappy stock CA turbo though.... that thing is depressing to say the least :)

Paul

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WDRacing
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For the record...I'm gonna own your SR Paul...heh. This thread needs a little KA support.

WD

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WDRacing
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Phax wrote::Werd

Just because you can turbo a motor, does not make the motor a turbo motor. The SR20DET was designed from the ground up to a turbo motor. The KA24DE was designed to go into trucks.


LMAO...not to diss the SR, but that is an obnoxious untrue statement. Lets get this thread back on topic. Paul has a sweet SR in the works. Hopefully he'll push it to the limits.

WD

Phax
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WDRacing wrote:...Paul has a sweet SR in the works. Hopefully he'll push it to the limits.

WD


Agreed!

I can't wait for the cam install.

NeedCAforS13
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cams are in... we put them in last friday:) noticeably smoother!

Sean

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RB20 is a good decision.....If i could do it over i would put an rb25 or rb26 in my 240 but now i gotta work with what i got.....and thanx for the info moving violation.....

Phax
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NeedCAforS13 wrote:cams are in... we put them in last friday:) noticeably smoother!

Sean


Which cams did you use?

How did the cams change where the boost hits, if at all?

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Movingviolation240
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HKS 264 Step 1 and I didn't notice any change on when boost hit

Paul

Phax
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Movingviolation240 wrote:HKS 264 Step 1 and I didn't notice any change on when boost hit

Paul


Why'd you pick the cams you picked? What were the performance dynamics that you were trying to tweak by putting in new cams?

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Movingviolation240
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I picked them because they seemed to complement my turbo size, intake manifold, exhaust ect the best.

I'm happy with the increase on top end HP that I picked up, and the power band is much smoother now.

Basically 256's were to small IMHO and 272's idle like crap... and the step 1 is the biggest you can run with stock valve springs (since I don't want to pull the head just yet).

So far with just a RAS I've managed to go over 8,000rpm and not have anything come appart (yet).

Paul

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Dori Dori
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With hydraulic lifters!

You crazy man.:crazy;)

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Hijacker
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paul, do you think that the RAS is a good idea even for a stock SR?

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Movingviolation240
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YES!

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Hijacker
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thanks :D i've been contimplating getting one, but have been caught up on suspension upgrades here recently.

btw, does the GT25R use an internal or an external wastegate?

NeedCAforS13
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Paul's is an internal wastegate, but I believe you can get them in either configuration:)

Sean

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Any guesstimates for 1/4 mile e/t's

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Hijacker
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i'm looking to do an external design when i upgrade my turbo, so i'm exploritating all the options

Gladius
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Moving,

Where did you get your internal wastegate and why dont you use an external wastegate. Also, what kind of exhaust are you running?

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Movingviolation240
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BRM exhaust, stock SR wastegate actuator on the stock GT25R wastegate, I went with it because it was cleaner and cheaper.

PaulOrlando, FL


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