Not a newb question: Blacktop or Redtop? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SR20d2fourT · 04-23-2006, 03:42 AM

I have a redtop, or so I think, SR20DET...but from my experience in reading up on them, they didnt have the "fins" at the front of the block above the water pump and below the valve cover-only the blacktops came with the fins...well my engine has the fins, but a red valve cover. I didnt notice this until recently. Did any Redtops come w/ fins at the front of the block??? How can I recognize it using other clues? heres a pic...I know, it looks ugly w/ the clutch fan and the radiator hose, but thats all gone now

sideview_180sx · 04-23-2006, 04:11 AM

check your ECU if you are unsure, possibly the valve cover was swapped. either way, if it runs, that's all that matters initially.

TAMTANIUM · 04-23-2006, 05:14 AM

correct me if I'm wrong. Don't quote me on this either!

There are 2 models of red top. The early model doesn't have fins the later model has fins. haha that's what i know

Irukandji · 04-23-2006, 09:37 AM

Dorifto89's redtop has fins.

drifter808 · 04-23-2006, 09:56 AM

it looks like your injectors are blacktop. i see some purple in there cause my stock redtop were like doo doo green and i put blacktop injectors and there purple.

mr_240sx · 04-23-2006, 10:06 AM

by looks of it..... its a black top engine.... but who really cares....

TheTimanator · 04-23-2006, 10:44 AM

interesting. My tedtop has fins, purple injectors and IIRC a blacktop ecu. Never really thought much about it though.

kensreliableb18b · 04-23-2006, 10:59 AM

later gen reds had them fins. anyway, theres other ways to tell but it doesnt matter, same shit

SR20d2fourT · 04-23-2006, 04:18 PM

Yeah, but I'd like to know just to know. It doesnt matter to me, as long as it runs right (which it does cept for an old ass, need to rebuild, turbo haha). Thats wierd though. Oh, anyone know of a T28 for sale? not the GT28R. I want it off the s14.

blu808 · 04-23-2006, 04:27 PM

Shock topic changing.

Yea one really easy way to tell is if you have the skinny redtop, or thick blacktop 02 sensor.

kouki_s14 · 04-23-2006, 05:02 PM

blacktops have fins and newer redtops have fins too
you just have a newer one i believe

TheTimanator · 04-23-2006, 05:30 PM

Quote:

Originally Posted by blu808

Shock topic changing.

Yea one really easy way to tell is if you have the skinny redtop, or thick blacktop 02 sensor.

this would explain why the redtop o2 sensor I ordered wouldn't fit. I guess I have a blacktop with a redtop valve cover. It may not matter but it's still good to know (especially when ordering o2 sensors)

SR20d2fourT · 04-23-2006, 11:46 PM

ah, I'll check that then

andrewmp6 · 04-24-2006, 12:55 AM

the mid run of the redtop had fins only things i know of difference between them is the blacktop has a bigger oil pick up

*fliprayzin240sx* · 04-24-2006, 12:58 AM

There were 2 redtops? I thought there were only one redtop S13, then 2 types of S13 blacktops. Only blacktops had the fins, and newer Blacktops only had ECU and wiring changes vs the older blacktops. yah o2 can be a dead give away too, but then again, your assed out if they changed turbos to a T28 w/ T28 elbow.

04-23-2006, 03:42 AM	#1
SR20d2fourT Zilvia Junkie Join Date: Aug 2005 Location: Earth Age: 37 Posts: 403 Trader Rating: (0) Feedback Score: 0 reviews	Not a newb question: Blacktop or Redtop? I have a redtop, or so I think, SR20DET...but from my experience in reading up on them, they didnt have the "fins" at the front of the block above the water pump and below the valve cover-only the blacktops came with the fins...well my engine has the fins, but a red valve cover. I didnt notice this until recently. Did any Redtops come w/ fins at the front of the block??? How can I recognize it using other clues? heres a pic...I know, it looks ugly w/ the clutch fan and the radiator hose, but thats all gone now __________________ My opinion gives me redboxes

04-23-2006, 04:11 AM	#2
sideview_180sx Zilvia FREAK! Join Date: Apr 2005 Location: somewhere north of mexico Posts: 1,538 Trader Rating: (3) Feedback Score: 3 reviews	check your ECU if you are unsure, possibly the valve cover was swapped. either way, if it runs, that's all that matters initially. __________________ feel the rythym. feel the ride. get on up. it's bobsled time. COOL RUNNINGS!!! formerly sideviewcivic Save a Horse. Drift This Cowboy. AirBag Club Member #0014

04-23-2006, 09:56 AM	#5
drifter808 Zilvia Addict Join Date: Aug 2005 Location: Big Island Age: 35 Posts: 829 Trader Rating: (4) Rides Gallery: drifter808 Feedback Score: 4 reviews	it looks like your injectors are blacktop. i see some purple in there cause my stock redtop were like doo doo green and i put blacktop injectors and there purple. __________________

04-23-2006, 10:44 AM	#7
TheTimanator Post Whore! Join Date: Apr 2002 Location: Nashville Age: 41 Posts: 2,535 Trader Rating: (1) Rides Gallery: TheTimanator Feedback Score: 1 reviews	interesting. My tedtop has fins, purple injectors and IIRC a blacktop ecu. Never really thought much about it though. __________________ 89 S13 hatch/////98 Subaru 2.5RS

04-23-2006, 04:18 PM	#9
SR20d2fourT Zilvia Junkie Join Date: Aug 2005 Location: Earth Age: 37 Posts: 403 Trader Rating: (0) Feedback Score: 0 reviews	Yeah, but I'd like to know just to know. It doesnt matter to me, as long as it runs right (which it does cept for an old ass, need to rebuild, turbo haha). Thats wierd though. Oh, anyone know of a T28 for sale? not the GT28R. I want it off the s14. __________________ My opinion gives me redboxes

04-23-2006, 05:14 AM	#3
TAMTANIUM Zilvia FREAK! Join Date: Apr 2005 Location: Socal. wc Age: 37 Posts: 1,022 Trader Rating: (1) Feedback Score: 1 reviews	correct me if I'm wrong. Don't quote me on this either! There are 2 models of red top. The early model doesn't have fins the later model has fins. haha that's what i know

04-23-2006, 09:37 AM	#4
Irukandji Post Whore! Join Date: Jul 2004 Location: Compton Posts: 4,268 Trader Rating: (0) Feedback Score: 0 reviews	Dorifto89's redtop has fins.

04-23-2006, 10:06 AM	#6
mr_240sx Post Whore! Join Date: Nov 2004 Location: Ottawa Age: 37 Posts: 6,320 Trader Rating: (4) Rides Gallery: mr_240sx Feedback Score: 4 reviews	by looks of it..... its a black top engine.... but who really cares....

04-23-2006, 10:59 AM	#8
kensreliableb18b Zilvia Addict Join Date: Jun 2004 Location: so cal - 626, 909, 562 and 949. 818 if i feel like running away Posts: 945 Trader Rating: (1) Feedback Score: 1 reviews	later gen reds had them fins. anyway, theres other ways to tell but it doesnt matter, same shit

04-23-2006, 04:27 PM	#10
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 41 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	Shock topic changing. Yea one really easy way to tell is if you have the skinny redtop, or thick blacktop 02 sensor. __________________

04-23-2006, 05:02 PM	#11
kouki_s14 Zilvia FREAK! Join Date: Jan 2004 Location: Los Angeles Posts: 1,550 Trader Rating: (0) Feedback Score: 0 reviews	blacktops have fins and newer redtops have fins too you just have a newer one i believe

04-23-2006, 11:46 PM	#13
SR20d2fourT Zilvia Junkie Join Date: Aug 2005 Location: Earth Age: 37 Posts: 403 Trader Rating: (0) Feedback Score: 0 reviews	ah, I'll check that then __________________ My opinion gives me redboxes

04-24-2006, 12:55 AM	#14
andrewmp6 Zilvia Junkie Join Date: Nov 2005 Location: kentucky Posts: 376 Trader Rating: (0) Feedback Score: 0 reviews	the mid run of the redtop had fins only things i know of difference between them is the blacktop has a bigger oil pick up

04-24-2006, 12:58 AM	#15
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	There were 2 redtops? I thought there were only one redtop S13, then 2 types of S13 blacktops. Only blacktops had the fins, and newer Blacktops only had ECU and wiring changes vs the older blacktops. yah o2 can be a dead give away too, but then again, your assed out if they changed turbos to a T28 w/ T28 elbow. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!