Hey guys. I have a SOHC turbo and my best time this season is 13.60 @ 105 MPH on 195/50/15 street tires with a 2.4 60 foot. I dyno'd my car at 185 WHP / 175 TQ. I bought some 14 inch drag radials (215/60/14) and put them on my del sol si wheels. i noticed they were kinda heavy, but didnt think anything of it.

my best tonight was 14.0 @ 96 MPH with a 2.1 60 foot. i was happy with the 60 foot, but where did the rest of my MPH go? almost 10 MPH? I noticed the car felt sluggish in 3rd gear.

i switched my street tires back on and the car felt like it should, pulled alot more up top.

I think my drag radials are too big, or/and im not making enough power.


ALSO:
I changed my plugs the hour before the race. I put in a step colder NGK plugs. Would that have made a difference?

 

those are some great times for the power you are making. How much weight reduction do you have and in what chassis.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by trecool44 &raquo;</TD></TR><TR><TD CLASS="quote">those are some great times for the power you are making. How much weight reduction do you have and in what chassis.</TD></TR></TABLE>

thanks man. im slowly starting to get respect. i think im near 200 whp now, i turned the boost up more.

i weighed in at 2346 with the drags, 2388 with my street tires in my 98 civic hatch

 

The definately didn't take away 10mph. Something else is amiss.

 

i put my street tires on when i got back and i got on it, car felt like it did when i was traping at 105-103 MPH.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pearl &raquo;</TD></TR><TR><TD CLASS="quote">Hey guys. I have a SOHC turbo and my best time this season is 13.60 @ 105 MPH on 195/50/15 street tires with a 2.4 60 foot. I dyno'd my car at 185 WHP / 175 TQ. I bought some 14 inch drag radials (215/60/14) and put them on my del sol si wheels. i noticed they were kinda heavy, but didnt think anything of it.

my best tonight was 14.0 @ 96 MPH with a 2.1 60 foot. i was happy with the 60 foot, but where did the rest of my MPH go? almost 10 MPH? I noticed the car felt sluggish in 3rd gear.

i switched my street tires back on and the car felt like it should, pulled alot more up top.

I think my drag radials are too big, or/and im not making enough power.


ALSO:
I changed my plugs the hour before the race. I put in a step colder NGK plugs. Would that have made a difference?</TD></TR></TABLE>

Hi pearl: You should be on a 22" tall tire, the 24" is to tall for the HP you have.

John
M&H

 

i think im trading them witih a buddy, he has 205/50/14 drag radials. he has a b series turbo vs my d series, so we should both fair well

 

I have the same 215/60/14 bfg's. I love them. They are 24.1 inches tall so im still in 4th at the end of the 1/4 I don't think it would kill 10 mph off the 1/4 mile though. I ran my best mph on the drags

 

maybe you guys are right. i just came back from a night of a little boost and heard some strange noises from my car; sounded like a rod knock/piston slap. didnt notice it at all at the track tho...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by trecool44 &raquo;</TD></TR><TR><TD CLASS="quote">those are some great times for the power you are making..</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pearl &raquo;</TD></TR><TR><TD CLASS="quote">maybe you guys are right. i just came back from a night of a little boost and heard some strange noises from my car; sounded like a rod knock/piston slap. didnt notice it at all at the track tho...</TD></TR></TABLE>

Hope everything is ok and its an easy fix...