RB25drag I want to race.........

Blast down the 1320? Love the 1/8 mile action? Here's your forum.
rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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Kentuckyslider, U ready for your beat down yet? lol JK, Im 3 weeks away from the dyno.


rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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Kentuckyslider, U ready for your beat down yet? lol JK, Im 3 weeks away from the dyno. Then I still gotta put a rollcage in and buy some Dr's, and go for an alignment. Im prob 2 months away from rolling it out to the track.

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kentuckyslider
Posts: 574
Joined: Tue May 20, 2008 7:51 pm
Car: 02 IS300 manual/03 G35 sedan auto

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Trying to figure out my new setup 1st. I made 372whp at 18psi on 93 pump gas but had some fueling issues. Got that fixed and will be back on the dyno this weekend with 25psi on 110 race gas.

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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Wow thats pretty good numbers for 18psi. Is that on the Holset turbo?

Well Im gettin closer myself. I finally got my turbo on ( What a pain in the a$$) And I got My Megasquirt Finally wired. Im going to be on the dyno tuning the 25th. But I still have not put my rollcage in and I have not changed my rear end. So I still got alot of work ahead. Here is a few pics from last weekend,






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nissandrftr88
Posts: 112
Joined: Mon Mar 05, 2007 8:28 am
Car: 34 240'S, 3 rx7's, 06 & 07 gsxr 1000
Location: Prattville Al

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rb25drag wrote:im i have never seen a 240 do a wheelstand so thats my goal. I might crash n burn. but im sure gonna try.
Me 2
kentuckyslider wrote:Trying to figure out my new setup 1st. I made 372whp at 18psi on 93 pump gas but had some fueling issues. Got that fixed and will be back on the dyno this weekend with 25psi on 110 race gas.
My dd would be a good race with you,i made 372 on 18psi and pump gas also....waiting on the dyno to be repaired and i'm going back to see what i do with a 75 shot on 14lbs

Also,rb25drag...whats your bs on your welds??i plan on buying me some fronts and was wanting to know if your running a spacer or not?
Modified by nissandrftr88 at 11:58 PM 4/19/2009

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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5mm spacer front. Non on the back

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Comrade
Posts: 41
Joined: Sun Feb 22, 2009 6:20 am
Car: 1990 s13
1997 s14

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So how's this race going to go down now?!?

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kentuckyslider
Posts: 574
Joined: Tue May 20, 2008 7:51 pm
Car: 02 IS300 manual/03 G35 sedan auto

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Here is my latest dyno.....

I'ts at 23-24psi on 110. My log mani is restrictive but I'm still trapping 95-96 in the 1/8th with it. I am going to Beech Bend in the next 2 weeks so I will have a new 1/4 mile slip for you. Let me know when you get yours going we can meet at NSS in nashville and do the 1/8th. It should be an equal distance for both of us.

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Comrade
Posts: 41
Joined: Sun Feb 22, 2009 6:20 am
Car: 1990 s13
1997 s14

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*cough*big block*cough*

LOL

What's that smell?

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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Sounds like ur setup is coming together. HAve you ran 1/8th mile on ur new setup?Im still in the fabricating stages again lol. I decided to chhange a few more things. I also have not got a new rear end. I cant find those rb20's. I might have to put a 9inch ford in it. I will def meet you in nashville. I just dont know how long its gonna take me to finish.I might be laid off in 3 weeks. So I might havve to put the project on the back burner if that happens.

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meet07
Posts: 1189
Joined: Tue May 08, 2007 5:48 am
Car: 89 180sx rb25det
Location: North Carolina
Contact:

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what about taking the stock springs and cutting 1/2 - 1 coil off and running them on stock shocks/strut???

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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The only thing I see wrong with the stock springs is they dont have as many coils as the tein do and might not have the re-bound it needs. Bit Idk, I have never tried modifying the stock ones. Could be worth a shot

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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The only thing I see wrong with the stock springs is they dont have as many coils as the tein do and might not have the re-bound it needs. But Idk, I have never tried modifying the stock ones. Could be worth a shot.

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meet07
Posts: 1189
Joined: Tue May 08, 2007 5:48 am
Car: 89 180sx rb25det
Location: North Carolina
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well i should be making my 1st apperance at the track with my mt streets 26x8.5x15 in a week or so. I'll have to shock combos to play with.

-megan springs with stock shocks-stock springs(with a lil trimmed off the top) and stock shocks

im looking for low 12's wish me luck!! Ill post videos as well!!!

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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Good luck man, Sounds like you will figure it out. Those m/t tires will hook best from 10-12psi.

My suspension worked good last weekend. I just couldnt get it out of the lights without it bogging. So My next step is to get the 2step working so I can build some boost.

I had a 2.1 and a 2.4 60ft. My worst 60's ever. But with this bigger turbo it take a little longer to get it spooled. Thats the difference.

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meet07
Posts: 1189
Joined: Tue May 08, 2007 5:48 am
Car: 89 180sx rb25det
Location: North Carolina
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i tryed to do a slight burn out the other day at 12 psi and the marks where dark on the outer edge and nothing in the middle. I went to about 16 lbs and still the same thing. I then tryed 18 lbs and the same thing. 12 felt a little squirly at higher mph's. I know im going to get a lil sway but i didnt think it would feel like that.

rb25drag
Posts: 1311
Joined: Mon Sep 24, 2007 9:51 am
Car: 1990 Nissan 240SX 5.3 Chevy + 60mm turbo + blow threw carb.

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The lower the psi the more squirly it will be. Ya 12 will be, 10 was alot for me. But you will never hook at anything higher than 12.

On the street it will be a little more squirly. Once your on a Preped track it will not be as much.

You will just have to play with it. But Mine always done best at 12psi. If the track was really tacky I could get away with 10. I have ran 8 before But I got crossed up on the top end. So I knew that was too low lol.

As for the tire only leaving 2 marks on the outside edges and not in the center, Its cause it don't have no weight transfer to it. If you got some weight on the rear end it would squat and wrinkle the tires and use the center of the tires more. If that makes any sense.


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