seven

Hi Guys,
My setup is a 13BT with TO4E turbo, running with 8 injectors and Microtech, Had the engine mild ported and runned-in for 1000KM already. The seals are 'so called' special 2MM heavy duty ones. So the problem is that I was travelling along the freeway today, with only 10psi of boost, when I came to the toll, the car just died off. And there was a problem to get her started again. After a few cranks and stepping of the accelerator, It started, but had to keep the revs high at idle. Had my mechanic tuned the microtech, and raised the boost to 15psi, and the problem happened again. Is this because the APEX seal has broken? Or the tips of the seal has blunt off? It is quite difficult to get her started and needs alot of cranking and stepping on the accelerator. Pls advise guys. I have spent alot on this engine, and yet to feel the power.

Thanks!

seven

Hi,
Anyone, care to help me out? Anyone experience this kind of situation? Or peharps, how'd you know if you've blown a seal? Wat's the signs? Pls Help.

Thanks!

Silkworm

You're better off in 2nd gen, sorry, never blown a motor. However, the only real way to tell is to do a compression check.

Although, I gotta be honest, you had the car die and you turned UP the boost?? Doesn't sound like the smartest thing in the world.

PaulC

Cossie

wow..

8 injectors, Microtech.....sounds like a GTR Engineering work?

seven

Hi Cossie,
I guess you must be from Singapore also? Anyway, mine isn't done by GTR. And Silkworm, we did try to have it boosted to 15psi and the car was still pulling strong, if the seal is broken, shouldn't there be lost in power? What are the other factors that may cause this? So Cossie, I guess by your nick, you should either be driving a Sierra Cosworth or RS Cosworth, right? These cars are monsters also. Is yours that fully done up RS500 series that was done by Graham Goode? With a TO4, running with 8 injectors? Heard it's producing 500+hp.

ben

If the engine has good compression then it sounds kind of like a bad vaccuum leak.

Cossie

I used to own the Escort Cosworth with a 335 BHP kit from GGR.

I currently own the Sapphire Cosworth with a Montune Evolution RS500 engine.
Yes, it does have the RS500 8 injector setup. I am running a smaller turbo now and was dynoed at 378bhp and 458nm tq.
T4 has been rebuilt and will not be installed for awhile

I am selling the Cosworth. Anyone interested? Car is in storage as I am in the US now.

-f

seven

Hi Ben,
I guess you maybe right, the guys will be doing a check-up before opening up the engine.

Hi Cossie,
So you must be driving the reputated 'White' Cossie in Singapore, have seen the car a few times, and it was previously owned by an indian chap? So any plans to go to the rotary? My car is currently been done across the border, and they are currenlty holding the fastest 2wd and 4wd champions in the whole of Malaysia, the 2wd, is running a TO4E turbo with a 2.2L DOHC Vtec, with forged pistons boosting at 2bar. And the 4wd is an evo 4 with HKS 2.2L Block with a TO4R boosting at also 2bar. Both running on microtech. Timming at PG for the evo is 0.01sec of SL75( R34 Skyline, which is running a Hollinger box). Anyway, how much are you asking for the cossie? My fren maybe interested.

Cheers!

Cossie

Hello

The cosworth is stored...I can email u some infor about the car. I am asking 85k with 9 years remaining on renewed COE.

I have an FD now here in the US. Running a ported engine with a HKS t04r kit.

Let me know abt the cossie
Link to the Cosworth

-f


Hi Cossie,
So you must be driving the reputated 'White' Cossie in Singapore, have seen the car a few times, and it was previously owned by an indian chap? So any plans to go to the rotary? My car is currently been done across the border, and they are currenlty holding the fastest 2wd and 4wd champions in the whole of Malaysia, the 2wd, is running a TO4E turbo with a 2.2L DOHC Vtec, with forged pistons boosting at 2bar. And the 4wd is an evo 4 with HKS 2.2L Block with a TO4R boosting at also 2bar. Both running on microtech. Timming at PG for the evo is 0.01sec of SL75( R34 Skyline, which is running a Hollinger box). Anyway, how much are you asking for the cossie? My fren maybe interested.

Cheers! [/B][/QUOTE

seven

Hi Cossie,
Did you ever owned a wrx sti b4? White with plate 199? And you used to own a shop in SG 'Cycleworks'? Well, I'm staying in SG, and used to drive a wrx in 98, It was a good car back then, but now loose out to the evos. So how is the Rx7 compared to the cosworth? Had heard alot bout the cosworth, and about it taking on a particular tunned Supra from Linkspower in KL. I was actually considering the car when it was up for sale at AML, but was afraid of parts availibilty. Anyway, my mechanic has opened up the engine and one of the seals has blunt of at the tips, so now I have to decide whether to go for 3mm or stick to the 2mm ones. These are specially made seals which are capable of high boost, but I do not know where they're getting it from.

Cossie

Yes, that was my STi RA....

tims

the burnt or flattened apex seal tip is not from a bad seal but from bad tuning. if the tune is too lean it will literally melt the tip of the apex seal. what type of EGT's was this engine generating? after rebuilding the engine I would work on the tuning.

seven

Hi Tims,
I don't what EGT's the engine was generating, but I think you maybe right about it running too lean. I suspected it because there were constant backfiring after I release accelerator after 4500rpm(Additional 4injectors kicking in) when I just took the car. After it was sent to the spray paint shop, there were no more backfires, and thus after some testing on 1bar boost, the seals gave way. So I guess the backfires actually indicates rich fuelling right? Anyway, they will be installing new 2mm seals. Do I have to get the engine runned-in? and what sought of mileage must I get before I could have it boosted to 1bar? Pls advise.

seven

Hi Cossie,
So how is the Cosworth compared to the FD, in terms of power wise? Or have you tried other cars that were even more amazing? Well, for me, the fastest one I've ever sat in, should be the JB MR2 turbo. This car was like pulling non-stop through the revs.

Cossie

Different kind of car

tims

if you melted down the apex seals on the last engine with its current state of tuning I would hope you already made plans to have the engine tuned correctly this time. without any change to the current tuning setup it is only a matter of time until the new engine has the same problems. without any diagnostic aids(EGT, AFM, etc) you will not get the engine running correctly. mileage and backfiring on decel is no way to tune an engine.

seven

Hi Tims,

Thanks for the advise. Anyway, will be collecting the car this week. Do I have to run-in the engine to a certain mileage, before tunning it? What sought of mileage will I be looking at to get it breaked-in? And I'll be keeping to only 3~4Krpm max, is this safe? Or do you have any advise on how to keep this engine from blowing again.

Thanks!

tims

the tuning should be done immediately while the engine is broken in. this can be accomplished on a chassis dyno if one is available. otherwise with appropriate equipment(egt,AFM, etc) tuning can be done on the road(alot more difficult and time consuming). if nothing is changed the same results will be had. the engine could last a week or 5 minutes, I don't know any more info than the apex seals were melted. this indicates a prolonged lean condition. this should be fixed before the engine is used under load.

seven

Hi Tims,

Thanks for the advise, bro. Anyways, what sought of mileage should I clock before I could start having my car boosted? Say...max 1bar? My mechanic has claimed that I have to get the seals to properly seat in, before any boost is applied. Is this so? Pls advise, cause I don't have much time to get in runned-in before the next drag wars.


Thanks.

tims

initial break in can be as little as 20-30 minutes, but it will be dificult to do it without boost. take it easy warm the engine and run it at low rpm for a day and work on the tuning.

seven

Hi Tims,
Thanks for the info. Anyway, I won't be up for this drag race. But really excited to see 2 20B's up against one another. My mechanic will be sending their pherial port 13bt w/GT35/40 Turbo in an FC shell, and the 20B'S will be an FD with a HKS T45 turbo and the other a so called 9sec 1/4mile with a 1stgen shell. And many Skyline GTRS, turbo civics, lancers and others.